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	<title>Rich Bui &#187; Canon EF 70-200mm f/4L USM</title>
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		<title>Canon 5D Mark II Real life Experience Review</title>
		<link>http://richbui.com/2009/01/04/canon-5d-mark-ii-real-life-experience-review/</link>
		<comments>http://richbui.com/2009/01/04/canon-5d-mark-ii-real-life-experience-review/#comments</comments>
		<pubDate>Sun, 04 Jan 2009 22:11:31 +0000</pubDate>
		<dc:creator>bodonnell</dc:creator>
				<category><![CDATA[Reviews]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Canon EF 24-70mm f/2.8L USM]]></category>
		<category><![CDATA[Canon EF 70-200mm f/4L USM]]></category>
		<category><![CDATA[Canon EOS 1D Mark III]]></category>
		<category><![CDATA[Canon EOS 40D]]></category>
		<category><![CDATA[Canon EOS 5D Mark II]]></category>
		<category><![CDATA[Canon EOS Rebel XT]]></category>
		<category><![CDATA[dxomark]]></category>
		<category><![CDATA[Nikon D3]]></category>
		<category><![CDATA[photography]]></category>

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		<description><![CDATA[Guest blogger Bill O'Donnell does an in-depth review of his newly acquired Canon EOS 5D Mark II with some sample photos.]]></description>
			<content:encoded><![CDATA[<p>Wow, the <a href="http://www.bhphotovideo.com/c/product/583953-REG/Canon_2764B003_EOS_5D_Mark_II.html/BI/2448/KBID/3281">Canon 5D Mark II</a> (<a href="http://www.bhphotovideo.com/c/product/583987-REG/Canon_2764B004_EOS_5D_Mark_II.html/BI/2448/KBID/3281">kit with Canon EF 24-105mm f/4L IS USM</a>) is an unbelievable camera and I strongly encourage everyone to take a look at this camera. According to dxomark, <a href="http://www.dxomark.com/index.php/eng/DxOMark-Sensor">http://www.dxomark.com/index.php/eng/DxOMark-Sensor</a> the 5D2 is rank 4<sup>th</sup> among some very expensive cameras. Based on it score, I believe the 5D2 is a much better deal.</p>
<p>Now to be honest with you all, I don’t consider myself a professional photographer, but rather it just a hobby of mine. I have read many of the reviews and many of the comparisons between other cameras and I have to say my 3 weeks of experience with this camera certainly lines well with the reviews. I have no real way to compare the 5D2 with any of the more interesting camera such as the Canon 50D, 1D3, or the Nikon D3. There are plenty of other reviews available that covers this angle of the 5D2 story. I have not seen much real life reviews of the camera, so I figure I take this opportunity to write a review based on real life conditions. To put things in the proper context, I am upgrading from the Canon EOS Rebel XT. I had considered upgrading to the 40D, but I felt that it was not enough bang for me to upgrade. The Canon 5D Mark II offered the bang I was looking to achieve and I truly believe it was worth every penny.<span id="more-2442"></span></p>
<p>I view myself as a generalist and do not focus on one area of photography. I have one camera (new 5D2) and a bunch of L lenses for the camera. If there is a picture to take, I take it and so far, I found the Canon 5D Mark II to be able to handle just about any thing. The camera is not just for weddings!</p>
<p>In this review, I will share some photo I have taken so far as well as cover my favorite features of the camera. Most of my sample photos will be JPEG right from the camera with the NR set to standard. In the past, I would shoot RAW and I would post process my RAW with Bibble Pro 4.10. But at this time, Bibble does not support the 5D2 as of yet and the DPP is frankly too slow for me. I have recently considered changing to Photoshop, but I have decided that I rather buy a new L lense then pay for PhotoShop. I have a license for Bibble and it a great product and will just have to wait until Bibble can support the 5D2. Certainly, I have RAW versions of all my photos and plan on experimenting with Cropping and evaluating its NR capabilities with the 5D2 once Bibble Pro 5 comes out with 5D2 support. Lucky for me, the 5D2 is producing awesome JPEG pictures right out of the camera which is allowing me to wait.</p>
<p>First up is Indoor Basketball shoots. I have hundreds of them so far. This one was taken in bad lighting conditions in an old gym. I used my Canon 24-70 F2.8 Lens with an Exposure Time of 1/250Sec, F-Stop 2.8, and ISO 3200. This photo came right out of the camera with no adjustments. The white balance is great and the colors are perfect. It has some noise, but certainly this can easily be clean up.</p>
<p><a href="http://bui4ever.com/files/2009/01/image001.jpg"><img class="aligncenter size-medium wp-image-2448" src="http://bui4ever.com/files/2009/01/image001.jpg" alt="" width="607" height="405" /></a></p>
<p>Here is another shot in a gym where the lighting conditions where much better. I used my Canon 24-70 F2.8 Lens again with an Exposure Time of 1/320Sec, F-Stop 3.2, and ISO 1600. This photo came right out of the camera with no adjustments. The white balance is great and the colors are perfect. Interesting in this gym, I have the camera set to Tv Priority set at 1/320 and auto ISO enabled. What I like about the 5D2 is that the F-stop will float between 3.2 and 2.8 (not sure why) but more importantly, the ISO will adjust down and low as possible (which I like a lot). For this lighting condition, the ISO seems to float between 1000 and 2500. The lighting changes slightly depending on where I am sitting in the gym and how far I have zoomed in or out the lens.</p>
<p><a href="http://bui4ever.com/files/2009/01/image002.jpg"><img class="aligncenter size-medium wp-image-2449" src="http://bui4ever.com/files/2009/01/image002.jpg" alt="" width="606" height="404" /></a></p>
<p>This next shot I had the camera set to full automatic. I don’t always use full automatic, but I wanted to see what the 5D2 would do in this condition. The 5D2 use ISO 100, F-stop of 8, and Exposure of 1/640 Sec. I used my Canon 70-200 F4 IS lenses for this shoot.</p>
<p><a href="http://bui4ever.com/files/2009/01/image003.jpg"><img class="aligncenter size-medium wp-image-2450" src="http://bui4ever.com/files/2009/01/image003.jpg" alt="" width="607" height="405" /></a></p>
<h3>DIGIC 4 imaging processor</h3>
<p>Comparing the 5D2 with my old Canon EOS Rebel XT (350D), one of the first things you will notice is the imaging processor capabilities in the 5D2. It seemed that just about every picture I had taken with the Rebel XT, needed some adjustments to the photo and why I always shot RAW. I had to adjust the White Balance, noise for ISO 800 or 1600, and at times, even the color was not quite right. However with the new DIGIC 4 image processor, I am seeing the colors and the white balance more under control and even more exciting, it has a built in Noise Reduction capability. Unscientifically of course, if you compare the JPEG coming right out of the camera, you notice a major difference in over all quality.</p>
<p>Being a Full Frame camera, right off the bat, you will notice a 1 F-Stop advantage over a crop camera such as the Rebel XT in respect to controlling the Exposure Time. In addition, using DPP and reviewing RAW files and comparing old basketball photo I had at 1600 and comparing them with the new basketball photo I have with the 5D2, I can notice the difference right away. The 350D at 1600 was not always usable. It depended a lot on the lighting conditions. With the 5D2, I am finding that noise level to be very usable up through 6400. To be clear, I do not have formal comparisons (kinda hard to do that with low lighting indoor action sports), but certainly I have been able to clean up a few 6400 test shots I have taken that simply look great. Many times I struggled when using 1600 on the 350D.</p>
<p>The other problem I had with the 350D, is I would set Av priority to a F-Stop of 2.8 and set the ISO to 1600. Many times, I would get blurry pictures because at times, the Exposure Time would be under 1/160 Sec. I did experiment with the under exposing with result of even more noise to deal with. Hard to get a half way decent indoor basketball shoot with bad gym lighting conditions and getting undesirable Exposure Times. Trust me, been there, done that. The 5D2 now gives me the ability to take great shoots even when the lighting conditions are bad.</p>
<p>Wow, for me, one of the biggest things I noticed with the 5D2 is the battery life between charges. When I had my 350D, it had to always have a 2<sup>nd</sup> battery with me especially when I used AI SERVO. With the 5D2 and using AI SERVO, I am taking hundreds of shots and coming home with my battery still having 70% or 80% battery power remaining. I could not be any happier here. I almost bought a 2<sup>nd</sup> battery for the 5D2, but the sales guy was very honest and said that I may not need it based on why I had a second one for the 350D. He was correct. I appreciate the honesty I got from them at <a href="http://www.cameracompany.com/">www.cameracompany.com</a>.</p>
<p>In addition, the 5D2 offers the ability to give you Battery status information such as the percentage remaining and the number of shots remaining. The 350D did not have this ability. In respect to basketball photos I have been taking, I found the Auto Focus with AI SERVO enable to be really fast as compare to the 350D I am use too. Many times with the 350D, I would loose a shot because the Auto Focus was simply not ready and fast enough. For the 5D2, I have yet to miss a picture I wanted; always focused and ready to go.</p>
<p>For a guy like me who is over 40 now, the screen on the 350D was just becoming a problem for me. The 5D2 3” LCD Screen is not only much bigger, but it also very sharp. The two things you need when you’re over 40. So if your over 40, this screen is a must have. Similar to the 350D, it does offer the ability to zoom in and out when reviewing photos, but what different is that the photo remains sharp as you zoom in. Also, it has a very nice button that they call their multi-controller which allows mouse like ability to move your picture up and down or left to right, very easily.</p>
<h3>Menu System</h3>
<p>Bottom line, it is very easy and simple! Just the way I like it. In addition, I was able to customize my very own screen. The only negative I will say is when I took the Ski photo above, I discovered that the customize Screen is not available if you are in full auto mode. For me, I don’t use full Auto Mode very often, but I do think this is a ridiculous restriction that Canon should consider removing. In respect to the 350D, the menu system is a major improvement with the 5D2.</p>
<h3>Continues Shooting</h3>
<p>The 5D2 has the ability to take 3.9 Shots per second which is slightly faster then the 350D. The 50D can perform at 6.3 shots per second with the 40D slightly faster. Given that some of my pictures are indoor sports, I debated for some time if I should go with the 50D or the 5D2. At the end, I went with the 5D2 because of the much better sensor that can handle low lighting conditions much better then the 50D. Putting the sensor to the side, simply having the 1 stop advantage being a full frame camera means you can basically double your Exposure time which is important for indoor sports pictures. I have never tried using a 50D or a 40D, but so far, I have been able to get great actions shots without the 6.3 advantage.</p>
<h3>Video</h3>
<p>So far, it appears to be working very well. I felt it was important to mention it, but at this point in time, I have not spent a lot of time using it in some real world scene.</p>
<h3>Black Dots</h3>
<p>Given all of the buzz about black dots, I thought it was important to mention the situation. The 5D2 can produce black dots that can be seen when shooting in very low lighting and you are taking a picture of street lights or Christmas lights. Based on what I read, they can be seen when you crop the photo by 100%. If you look closely, you will see a black dot in the middle of the light. Good news is Canon has acknowledged the problem and plans a firmware upgrade at some point to address the problem. My personal view is I have never seen the issue with my camera but then again, I never had an opportunity to take pictures on the conditions required to see this problem.</p>
<h3>Final Thoughts</h3>
<p>I am sure you can tell that I am quite pleased with this camera. 5D2 is an awesome camera. I feel the 5D2 has a solid control of its noise performance up to ISO 6400. I now have the ability to take much improved indoor sport pictures. I am sure the Nikon D3 or 700 or the Canon 1D3 can take solid indoor sport pictures as well, but given the price point and where I am as a hobbyist today, the 5D2 is a create camera and great option for me.</p>
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		</item>
		<item>
		<title>Canon EF 70-200mm f/2.8L USM</title>
		<link>http://richbui.com/2007/05/02/canon_ef_70-200mm_f28l_usm/</link>
		<comments>http://richbui.com/2007/05/02/canon_ef_70-200mm_f28l_usm/#comments</comments>
		<pubDate>Wed, 02 May 2007 23:22:03 +0000</pubDate>
		<dc:creator>Richard Bui</dc:creator>
				<category><![CDATA[Reviews]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Canon EF 24-70mm f/2.8L USM]]></category>
		<category><![CDATA[Canon EF 70-200mm f/2.8L USM]]></category>
		<category><![CDATA[Canon EF 70-200mm f/4L USM]]></category>
		<category><![CDATA[Canon EOS 1D]]></category>
		<category><![CDATA[Canon EOS Rebel 400D]]></category>
		<category><![CDATA[Canon EOS Rebel XTi]]></category>
		<category><![CDATA[CBF]]></category>
		<category><![CDATA[Cherry Blossom Festival]]></category>
		<category><![CDATA[Grand National Rodeo]]></category>
		<category><![CDATA[photography]]></category>

		<guid isPermaLink="false">http://bui4ever.com/?p=187</guid>
		<description><![CDATA[Lens Review Canon EF 70-200mm f/2.8L USM on Canon EOS Rebel 400D/XTi. [table=7] Introduction There are many reasons as to why you would find this lens in virtually everyone&#8217;s bag, it&#8217;s probably Canon&#8217;s best lens for its focal range, build quality, and sharpness. This lens easily becomes anyones favorite after one or two uses. It&#8217;s [...]]]></description>
			<content:encoded><![CDATA[<h3>Lens Review</h3>
<p><a href="http://www.flickr.com/photos/bui4ever/sets/72157600137595112/">Canon EF 70-200mm f/2.8L USM</a> on Canon EOS Rebel 400D/XTi.<br />
[table=7]</p>
<h3>Introduction</h3>
<p><a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/474246294/"><img src="http://farm1.static.flickr.com/220/474246294_4f40d116d0_m.jpg" alt="2007-04-26 - Canon Photo Equipment - 011" width="240" height="160" align="left" /></a>There are many reasons as to why you would find this lens in virtually everyone&#8217;s bag, it&#8217;s probably Canon&#8217;s best lens for its focal range, build quality, and sharpness. This lens easily becomes anyones favorite after one or two uses. It&#8217;s solidly built and very well constructed.</p>
<p>With a 1.6 frame of view (FOV) crop, the 70-200mm becomes a 112-320mm, quite a usable range. Whereas my <a href="http://www.bui4ever.com/photography/canon_ef_24-70mm_f28l_usm/">Canon EF 24-70mm f/2.8L USM</a> is my carry around lens, I find myself using the Canon EF 70-200mm f/2.8L USM for outdoor and indoor events such as the <a href="http://www.flickr.com/photos/bui4ever/sets/72157600111900345/">Cherry Blossom Festival</a> and the <a href="http://www.flickr.com/photos/bui4ever/sets/72157600059281856/">Grand National Rodeo</a>.</p>
<h3>Weight and Dimension</h3>
<p>This is definitely not a small lens by any means, its dimensions are 3.3&#8243; x 7.6&#8243; at a smudge under 3 lbs making it heavier than the Canon EF 24-70mm f/2.8L USM. With the 70-200mm attached on small SLRs such as the Rebel line, you find it is noticeably nose heavy. It doesn&#8217;t start getting balanced out until you attach it to a Canon EOS 1D line, but by that point, you&#8217;re holding onto more than 6 lbs!</p>
<p>As with almost all the other Canon L lenses, the filter size is the 77mm. I&#8217;m currently using a B+W 77mm MRC (010) UV Filter which <a href="http://www.the-digital-picture.com/Reviews/B+W-UV-Filter.aspx">The-Digital-Picture.com exclusively uses</a>. Originally I was going to go with a Hoya Super HMC Pro, but kept hearing so much about B+W filters that I figured why not. If I was going to buy a Ferrari, I wouldn&#8217;t fill it up 87 gas.</p>
<h3>Construction</h3>
<p>Built like a tank, just like the other Canon L lenses. Every piece is so meticulously constructed, you could use this lens thousands of times and it would still look new. Even if you <a href="http://www.kenrockwell.com/canon/lenses/70-200mm-f28-is.htm">dropped it from on top of an elephant</a>, it still works great! Also worth mentioning, the non-IS version <strong>is not</strong> weather sealed. Of the four Canon EF 70-200mm (f/2.8L, f/4, f/2.8L IS, f/4L IS), only the image stabilizer (IS) versions are weather sealed.</p>
<p>There is really not much more to mention about its construction that hasn&#8217;t already been said by many people already.</p>
<h3>Field Test</h3>
<p><a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/474257171/"><img src="http://farm1.static.flickr.com/197/474257171_50f78211f6_m.jpg" alt="2007-04-26 - Canon Photo Equipment - 014" width="160" height="240" align="right" /></a>For day-to-day shooting, I rely upon my Canon EF 24-70mm f/2.8L because of its semi-wide angle and allows me to get close up to subjects and objects and its limited macro capabilities. For events such as concerts, festivals, and what not, the Canon EF 70-200mm f/2.8L becomes the lens I use for many reasons, but usually because I need the extra reach.</p>
<p>The picture quality is superb on many levels. The colors are vibrant and jump out at you and the sharpness is next to none. This lens is definitely sharper than my Canon EF 24-70mm f/2.8L and has slightly better colors, contrast, and saturation using all the same camera settings. Very little post processing is needed when using this lens.</p>
<p>The bokeh achieved by this lens is nothing less than fantastic. The background is always nicely blurred out when using f/2.8 or a long focal range (100mm+) on a nearby subject. It is definitely not difficult to get great looking bokeh with this lens.</p>
<p>The AF on this lens is lightening fast and focuses accurately on subjects and objects. I rarely ever have cases where the 70-200mm is &#8220;hunting&#8221; for focus. Precision is very important, especially when shooting sports, which makes this lens a great lens for fast moving subjects or objects.</p>
<h3>Overall Thoughts</h3>
<p>There is only one reason I would part with this lens, to get the Canon EF 70-200mm f/2.8L <strong>IS</strong> USM. While the difference in the price is quite a bit, <strong>it is very much worth it</strong> to get the IS version. This lens also attracts a lot of attention, being the trademarked &#8220;white&#8221; L lens and its size (especially with the pedal hood on).</p>
<p>The lens comes with a very nice canvas carry case, pedal hood, and most of all, a tripod mount which  the Canon EF 70-200mm f/4L versions do not come with.</p>
<p>Check out these shots (<a href="http://www.flickr.com/photos/bui4ever/sets/72157600111900345/">Cherry Blossom Festival</a> and <a href="http://farm1.static.flickr.com/216/452580311_484a950a83_s.jpg">Grand National Rodeo</a>), all made with the Canon EF 70-200mm f/2.8L USM and make your own decision if it&#8217;s worth it or not, in my opinion, it is worth every penny.</p>
<p>[rating:5] </p>
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		</item>
		<item>
		<title>Canon EF 24-70mm f/2.8L USM</title>
		<link>http://richbui.com/2007/01/26/canon_ef_24-70mm_f28l_usm/</link>
		<comments>http://richbui.com/2007/01/26/canon_ef_24-70mm_f28l_usm/#comments</comments>
		<pubDate>Sat, 27 Jan 2007 04:11:31 +0000</pubDate>
		<dc:creator>Richard Bui</dc:creator>
				<category><![CDATA[Reviews]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Canon EF 17-55mm f/2.8 IS USM]]></category>
		<category><![CDATA[Canon EF 24-70mm f/2.8L USM]]></category>
		<category><![CDATA[Canon EF 70-200mm f/4L USM]]></category>
		<category><![CDATA[Canon EF-S 18-55mm f/3.5-5.6]]></category>
		<category><![CDATA[Canon EOS 20D]]></category>
		<category><![CDATA[Canon EOS 30D]]></category>
		<category><![CDATA[Canon EOS Rebel 400D]]></category>
		<category><![CDATA[Canon EOS Rebel XTi]]></category>
		<category><![CDATA[photography]]></category>
		<category><![CDATA[Sigma AF 24-70mm f/2.8 DG DF]]></category>
		<category><![CDATA[Tamron 28-75mm f/2.8]]></category>

		<guid isPermaLink="false">http://bui4ever.com/?p=154</guid>
		<description><![CDATA[Specifications Canon EF 24-70mm f/2.8L USM on Canon EOS Rebel 400D/XTi. [table=6] Introduction From the first time I heard about the Canon EF 24-70mm f/2.8L USM lens, I had a feeling it would be a lens I would really like. I was wrong. I am absolutely in love with this lens. It is amazing! From [...]]]></description>
			<content:encoded><![CDATA[<h3>Specifications</h3>
<p><a href="http://www.flickr.com/photos/bui4ever/sets/72157600137422137/">Canon EF 24-70mm f/2.8<span class="red">L</span> USM</a> on Canon EOS Rebel 400D/XTi.</p>
<p>[table=6]</p>
<h3>Introduction</h3>
<p><a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/474239968/"><img src="http://farm1.static.flickr.com/173/474239968_e53ad8ea45_m.jpg" alt="2007-04-26 - Canon Photo Equipment - 001" width="240" height="160" align="left" /></a>From the first time I heard about the Canon EF 24-70mm f/2.8<span class="red">L</span> USM lens, I had a feeling it would be a lens I would really like. I was wrong. I am absolutely in love with this lens. It is amazing! From the feel to the picture quality, superb. There are few people who say this lens is way too overrated. Some aren&#8217;t as impressed as others and claim that the Tamron 28-75mm f/2.8 performs just as well for a lot less in price and is smaller, more compact and supposedly the Sigma AF 24-70mm f/2.8 DG DF performs about as good as the Canon EF 24-70mm f/2.8<span class="red">L</span> and better than the Tamron. I personally have not used the Tamron or the Sigma and can&#8217;t comment.</p>
<p>This lens is my walk around lens. It may seem a bit *big* at first to be a walk around lens on a Canon EOS Rebel 400D/XTi (hell, it&#8217;s still not even considered small on the Canon EOS 20D or Canon EOS 30D), but you get used to it quite quickly especially after seeing the the sharpness and performance of the Canon EF 24-70mm f/2.8<span class="red">L</span></p>
<p>The focal length of this lens on a 1.6 FOVCF (frame of view crop factor) SLR such as the Canon EOS Rebel 400D/XTi is 38.4mm to 112mm, somewhat odd range, but still usuable.</p>
<h3>Weight and Dimensions</h3>
<p>This len isn&#8217;t small. It&#8217;s a bit longer than the Canon EF 17-55mm f/2.8 IS and is only a bit shorter than the Canon EF 70-200mm f/4<span class="red">L</span>. It weighs 950 grams (or 2.1 pounds), so it&#8217;s heavier than the Canon EF 70-200mm f/4<span class="red">L</span>, but not as heavy as the Canon EF 70-200mm f/2.8<span class="red">L</span>. The actual dimensions are: 4.9 inches length-wise and 3.3 inches in diameter. It has 13 groups and 16 elements; definitely a lot of glass in this lens! With this lens attached to the Canon EOS Rebel 400D/XTi, I find myself sometimes holding the camera/lens by the lens body rather the grip because it feels a bit more comfortable and I&#8217;m not as afraid of dropping this $1,000 lens. I see many people complain about the weight of this lens. It&#8217;s not light, but certainly not heavy like Canon&#8217;s super telephoto lens, the 500mm and 600mm. Those that complain of the weight don&#8217;t seem to appreciate the superior build quality and the picture quality achieved by this fantastic lens.</p>
<h3>Construction</h3>
<p><a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/474251559/"><img src="http://farm1.static.flickr.com/167/474251559_921b7757c3_m.jpg" alt="2007-04-26 - Canon Photo Equipment - 002" width="240" height="160" align="right" /></a>Because this is an <span class="red">L</span> lens, it is primarily constructed of magnesium alloy and most certainly feels like it can take a pounding and continue taking great pictures. The barrel that extends is also constructed of magnesium alloy and you can feel how well its built when the barrel is fully extended out. There is virtually no significant wobbling of any kind with the lens when the barrel is collapsed or fully extended. This <span class="red">L</span> lens is black in color, unlike it&#8217;s bigger brothers, who are painted in the now famous Canon color, off white (or putty). Because of that, it may not garner glances as quickly as a white <span class="red">L</span> lens usually does, people still notice that it is not a small lens either. When you attach the flower hood (EW-83F), it really stands out.</p>
<p>The focal length ring rotates smoothly and tightly allowing for precise adjustments. It feels great when you spin either the focal length ring or the focus ring. This is definitely an excellent engineered lens. One thing that many people may find a bit odd at first is how the focal lengths work. When the barrel is fully collapsed, it is at its fartherest focal length, 70mm. To use 24mm, the barrel is focused out. I believe part of the reason that Canon designed the lens this way was because of the huge hood. The hood attaches to the body and not the barrel like some other lenses does (for example, the Nikon AF 28-200mm f/3.5-5.6G ED-IF) and if 24mm was when the barrel was completely collapsed, parts of the hood would appear in the shot. One added bonus is that with the hood on and the barrel fully extended, the barrel remains inside of the hood still, which is great protection in the unlikely event you drop the lens.</p>
<h3>Field Test</h3>
<p>I usually have the Canon EF 24-70mm f/2.8<span class="red">L</span> USM attached to my camera; as it is my walk around lens. There are a few times that I feel a bit limited by 70mm and want to be able to zoom more and other times I feel that 24mm isn&#8217;t wide enough.</p>
<p>The maximum aperture of 2.8 allows me to get shots in dimly lit areas, which is a great bonus. This is definitely not a lens I would use for shooting sports because of its limited focal range, but using it for portraits is very satisfying. It creates a very smooth and buttery blurred background (bokeh) at 2.8.</p>
<p>Auto focus is extremely fast on the Canon EF 24-70mm f/2.8<span class="red">L</span> because of ring type USM. It also<a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/474250311/"><img src="http://farm1.static.flickr.com/212/474250311_c2b9c052ff_m.jpg" alt="2007-04-26 - Canon Photo Equipment - 007" width="160" height="240" align="left" /></a> focuses accurately and does well under low light conditions.</p>
<p>I&#8217;m unable to use my built on flash with this lens attached because it will cause very noticable lens vignetting on the bottom center of the pictures. It doesn&#8217;t bother me too bad because I try to avoid using flash as much as possible.</p>
<p>Another great thing about this lens is the macro feature. It can focus as close as 1.25 feet, much better than my Canon EF 70-200mm f/4<span class="red">L</span>&#8216;s 3 something feet. While this isn&#8217;t quite super impressive, it&#8217;s very usable for me. There are times I like to take macro images, such as product images and what not, so I need a good macro lens, which I previously was using the cheapy kit lens, Canon EF-S 18-55mm f/3.5-5.6.</p>
<p>It&#8217;s a great lens with decent focal range. Good enough to spend 85% of the time on my SLR body. The weight isn&#8217;t too big of an issue, you get used to it, especially when you see the image quality.</p>
<h3>Overall Thoughts</h3>
<p>This lens would be perfect if it had Image Stabilizer (IS) on it. There are just some times in some dimly lit areas (such as indoors) where IS would help quite a bit! I highly recommend this lens.</p>
<p>[rating:4.5] </p>
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		<title>Canon EF 70-200mm f/4L USM</title>
		<link>http://richbui.com/2007/01/21/canon_ef_70-200mm_f4l_usm/</link>
		<comments>http://richbui.com/2007/01/21/canon_ef_70-200mm_f4l_usm/#comments</comments>
		<pubDate>Mon, 22 Jan 2007 04:39:19 +0000</pubDate>
		<dc:creator>Richard Bui</dc:creator>
				<category><![CDATA[Reviews]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Canon EF 300mm f/4L USM]]></category>
		<category><![CDATA[Canon EF 70-200mm f/2.8L USM]]></category>
		<category><![CDATA[Canon EF 70-200mm f/4L USM]]></category>
		<category><![CDATA[Canon EOS Rebel 400D]]></category>
		<category><![CDATA[Canon EOS Rebel XTi]]></category>
		<category><![CDATA[Karl Grobl]]></category>
		<category><![CDATA[Ken Rockwell]]></category>
		<category><![CDATA[Lowepro AW 200]]></category>
		<category><![CDATA[Nikkor AF 180mm f/2.8D ED-IF]]></category>
		<category><![CDATA[photography]]></category>

		<guid isPermaLink="false">http://bui4ever.com/?p=151</guid>
		<description><![CDATA[Lens Review Canon EF 70-200mm f/4L USM on Canon EOS Rebel 400D/XTi. Introduction The Canon EF 70-200mm f/2.8L USM is perhaps one of Canon&#8217;s most favored lenses by professionals and serious amateurs alike. Great range, internal focusing, weather sealing, great build quality, heavy duty, and a maximum aperture of 2.8 makes it a great lens [...]]]></description>
			<content:encoded><![CDATA[<h3>Lens Review</h3>
<p>Canon EF 70-200mm f/4L USM on Canon EOS Rebel 400D/XTi.</p>
<h4>Introduction</h4>
<p>The Canon EF 70-200mm f/2.8<span class="red">L</span> USM is perhaps one of Canon&#8217;s most favored lenses by professionals and serious amateurs alike. Great range, internal focusing, weather sealing, great build quality, heavy duty, and a maximum aperture of 2.8 makes it a great lens for portraits, sports, and even landscape.</p>
<p>The two major reasons why anyone would choose the Canon EF 70-200mm f/2.8<span class="red">L</span>&#8216;s little brother, the Canon EF 70-200mm f/4<span class="red">L</span> is: 1) weight and 2) value to cost.</p>
<h4>Weight and Dimensions</h4>
<p><a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/499625464/"><img src="http://farm1.static.flickr.com/226/499625464_965ca6a7c1_m.jpg" alt="2007-01-21 - Canon EF 70-200mm L USM - 001" width="240" height="160" align="left" /></a>The Canon EF 70-200mm f/4<span class="red">L</span> USM weighs in approximately at 705g (1.6lbs) versus its bigger brother, the f/2.8<span class="red">L</span> at 1,473g (3.24lbs)! So the f/4<span class="red">L</span> is definitely a lighter and more convenient lens to carry around especially if you&#8217;re going hiking or doing a lot of walking.</p>
<p>This lens is almost 7 inches long (6.8 inches) with a 3 inch diameter with a 67mm filter size, unlike the normal 77mm filter sizes on all the other Canon <span class="red">L</span> lenses. This lens fits snuggly into my Lowepro AW 200 slingshot backpack with the Canon EOS Rebel 400D/XTi attached. The 70-200mm by itself fits perfectly in, making it easy to pack along as an additional lens and still have room to bring a few other lenses.</p>
<h4>Construction</h4>
<p>As with all of Canon&#8217;s <span class="red">L</span>, or Luxury, line of lenses, it&#8217;s almost exclusively made of magneisum alloy making it very durable and able to stand up to punishment. I personally would never want to do a drop test to see how rugged it is, but if <a href="http://www.kenrockwell.com/canon/lenses/70-200mm-f28-is.htm">Ken Rockwell&#8217;s test on Karl Grobl&#8217;s dropped Canon EF 70-200mm f/2.8<span class="red">L</span> USM</a> is any indication of its well built quality, then I&#8217;m sure this guy will take a bit of a beating and keep on kicking.</p>
<p>The only major difference between the f/2.8<span class="red">L</span> (IS version) and the f/4<span class="red">L</span>&#8216;s construction is that the f/2.8<span class="red">L</span> (IS version) is weather sealed while the f/4<span class="red">L</span> <strong>is not</strong>, but the f/4L IS version is. This may not make a whole of difference to most people, but worth mentioning just in case.</p>
<p><a title="Photo Sharing" href="http://www.flickr.com/photos/bui4ever/499625238/"><img src="http://farm1.static.flickr.com/197/499625238_6e8cce4fe3_m.jpg" alt="2007-01-21 - Canon EF 70-200mm L USM - 002" width="240" height="165" align="right" /></a>Another thing I&#8217;ll mention here is the color. I have always been under the impression that <strong>all</strong> of the <span class="red">L</span> line lenses are white (except for the smaller focal lengths), it&#8217;s not paper white. It seems (I&#8217;m not 100% sure, based on observations) that the only paper white <span class="red">L</span> lenses are the 400mm, 500mm, and 600mm. The Canon EF 70-200mm f/2.8<span class="red">L</span> and f/4<span class="red">L</span> are more of a putty color. Originally I thought maybe it was because it was an older lenses or faded, but I&#8217;ve compared it to other 70-200mm both f/2.8<span class="red">L</span> and f/4<span class="red">L</span> and they are in fact all putty color. Odd. If someone knows the answer to this, please email me with the explanation as I&#8217;m curious. <strong>I do in fact know why Canon makes the <span class="red">L</span> lenses &#8220;white&#8221;, what I&#8217;m not sure of is why some are putty and others are actually white.</strong></p>
<h4>Field Test</h4>
<p>The Canon EF 70-200mm f/4<span class="red">L</span> USM is a great carry around lens because of its size and is almost as good, if not just as good, as its big brother, the f/2.8<span class="red">L</span>. The most amazing thing about this lens is the bokeh produced. The background blurs to such a smoothness that I could never quite achieve with any of my Nikon lens, even the Nikkor AF 180mm f/2.8D ED-IF.</p>
<p>The pictures taken with this lens is very crisp and sharp and the colors are excellent. The Fluorite elements, in terms of the picture quality and clarity, are absolutely amazing!</p>
<p>Because this lens has the more expensive ring USM focusing (versus the micromotor USM), focusing is superbly fast and precise with FTM (full time manual) focus. If you&#8217;ve never used a ring USM lens, once you try it, you&#8217;re sold.</p>
<p>The major drawback of this lens for me is the maximum aperture of f/4, while this is not super bad considering you are getting f/4 <strong>through the entire range</strong>, it does have limitations in low light such as indoors photography. This probably wouldn&#8217;t be an ideal lens for indoor sports photography, but it is still usuable, the ISO just has to be increased to 800 or 1600 to get speeds necessary to hand hold at f/4. I have seen pictures of people using this lens at indoor high school basketball games and what-not and it seems to be fine, but grain is noticeable at higher magnification. But out doors on a sunny day, it works great!</p>
<h4>Overall Thoughts</h4>
<p>This is a great lens to have, especially for its cost in relation to its value. It&#8217;s relatively light, built like a tank, optically superb, and definitely draws stares and gawkers because of the famous &#8220;white&#8221; Canon lenses.</p>
<p>Even though I have the 70-200mm range covered with this lens, I will eventually get the Canon EF 70-200mm f/2.8<span class="red">L</span> IS. There are many situations in which I need a higher maximum aperture than just f/4, such as indoor sports photography or just indoors shooting. The image stabilization (IS) definitely doesn&#8217;t help do stop action sports photography, but will definitely come in handy for pictures of singers at concerts. And even though I would get the Canon EF 70-200mm f/2.8<span class="red">L</span> USM, I would still keep the f/4<span class="red">L</span> because it&#8217;s a great lens and more portable than its f/2.8<span class="red">L</span> brother.</p>
<p>By the way, I highly recommend getting the Canon tripod ring. It doesn&#8217;t come with it, and will set you back another $120, but it is well worth it because it keeps the lens and camera more balanced on a tripod. You could get a black one, it cost some $30 less, made of the same material (magnesium alloy), but doesn&#8217;t look as appealing. The Canon tripod ring also fits the Canon EF 300mm f/4<span class="red">L</span> USM. It also comes with a nice Canon suede pouch to carry the lens in.</p>
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