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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 26 Jul 2009 (Sunday) 00:23
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My weekend with 70-200 2.8 IS and 2x TC

 
Transfer
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Jul 26, 2009 00:23 |  #1

I'm in San Diego (La Jolla more specifically) for six weeks and thought I would spend some time with a 70-200 f/2.8 IS and a 2x teleconverter as I think this might be a combo I would want to buy in the future. Went to George's Camera which is a medium size shop with a great rental selection. Currently I shoot with a 30D and 55-250 IS, which I am normally mostly content with but rentals are always fun.

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I went to the San Diego Zoo, which I have been to several times in the past without photo gear, and ended up going on a friday afternoon in failing light. I wanted to avoid direct overhead sun, but I forgot how shady and dark a lot of the exhibits are. I have to say that the 7-2 2.8 IS was great to use although there is certainly a HUGE IQ difference between 2.8 and 4.0 aperature. When adding the 2x, I found a number of my photos ended up slightly OOF and there was significant loss of quality. I have used the 1.4x before and in comparison I would say it is a much better buy unless you really need 2x capability.

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Today I went to one of the smaller beaches in La Jolla that I have been frequenting and planned to shoot the surfing. This weekend saw the largest surf of the summer with waves of 7-12 feet. The waves were breaking pretty far out (125 yards?) so I used the 2x. Again, not too pleased with the image quality. It's not bad, but at 400mm details are slipping. I was shooting at f/5.6 and on hindsight I think I should have stopped down a few steps as there was plenty of light. I again noticed autofocus wasn't the greatest at times but of course there could be some user error too.

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I don't think I would get a 2x TC although i would consider a 1.4x. I would however, easily pick up a 70-200 2.8 IS. Even though there is a large IQ difference between 2.8 and 4.0, the 2.8 is available, which is important. I think for most shots I would shoot at 4.0 unless increased speed is needed. Next up to try at some point is a 100-400, although I think I will be disappointed with the speed of the lens. It would have worked excellent at the beach today though.

EOS 40D | EF-S 17-55 f/2.8
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emtp563
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Jul 26, 2009 00:35 |  #2

I don't notice much, if any IQ difference between f/2.8 and f/4 I didn't spend all that extra money on a f/2.8 lens to use it at f/4. What's the point? I can show you some razor-sharp images, at night, of a moving subject at f/2.8 with this lens. I think your xxD series AF system may be a factor in what you are seeing.


*cameras: Canon 1D Mark III | Canon 1D Mark II | Canon 1D "Classic" | Canon S95
*lenses: Canon 16-35L f/2.8 | Canon 24-70L f/2.8 | Canon 70-200L f/2.8 IS | Canon 1.4x TC II
*accessories: Canon 580EX II/430EX | Quantum Turbo SC | CP-E4
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Transfer
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Jul 26, 2009 00:45 |  #3

I did a couple of test shots in good light and really noticed the difference between 2.8 and 4.0. Because they were test shots, I deleted them of course. Oh well. I think you're correct about my 30D autofocus though. What would be the next body upgrade for improvement in that area? 50D is still xxD, but isn't the AF improved over xD?


EOS 40D | EF-S 17-55 f/2.8
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emtp563
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Jul 26, 2009 00:50 |  #4

Transfer wrote in post #8344309 (external link)
I did a couple of test shots in good light and really noticed the difference between 2.8 and 4.0. Because they were test shots, I deleted them of course. Oh well. I think you're correct about my 30D autofocus though. What would be the next body upgrade for improvement in that area? 50D is still xxD, but isn't the AF improved over xD?

The next step up in the AF department is any 1-series camera. Even the older 1D Mark II will outperform any xxD/xxxD series camera in nearly every area, ESPECIALLY autofocus. AF doesn't get any better than the Canon 1-series. If you can live with 4Mb images, even the original 1D will blow you away.


*cameras: Canon 1D Mark III | Canon 1D Mark II | Canon 1D "Classic" | Canon S95
*lenses: Canon 16-35L f/2.8 | Canon 24-70L f/2.8 | Canon 70-200L f/2.8 IS | Canon 1.4x TC II
*accessories: Canon 580EX II/430EX | Quantum Turbo SC | CP-E4
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Jul 26, 2009 00:56 |  #5

emtp563 wrote in post #8344319 (external link)
The next step up in the AF department is any 1-series camera. Even the older 1D Mark II will outperform any xxD/xxxD series camera in nearly every area, ESPECIALLY autofocus. AF doesn't get any better than the Canon 1-series. If you can live with 4Mb images, even the original 1D will blow you away.

Well yeah, but I'm a hobbyist and don't want a monstrous 1D body or 1D body pricetag.


EOS 40D | EF-S 17-55 f/2.8
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emtp563
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Jul 26, 2009 01:00 |  #6

You can get a 1D or a 1D mark II for less than a new 50D. As for the size, you don't know what you've been missing until you've handled one. It makes everything else feel like a child's toy ;-)a


*cameras: Canon 1D Mark III | Canon 1D Mark II | Canon 1D "Classic" | Canon S95
*lenses: Canon 16-35L f/2.8 | Canon 24-70L f/2.8 | Canon 70-200L f/2.8 IS | Canon 1.4x TC II
*accessories: Canon 580EX II/430EX | Quantum Turbo SC | CP-E4
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cfibanez
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Jul 26, 2009 15:47 |  #7

Transfer wrote in post #8344239 (external link)
...I don't think I would get a 2x TC although i would consider a 1.4x. I would however, easily pick up a 70-200 2.8 IS. Even though there is a large IQ difference between 2.8 and 4.0, the 2.8 is available, which is important....

I have had the opportunity to shoot with this lens and the Kenko 1.4X TC for a few weeks now and I am very satisfied with the results. I have also noted a difference in IQ between 2.8 and 4.0, perhaps not "large" as the OP writes, but definitely noticeable. I have posted some tests shot at 200mm in the archive of the lens HERE.


5D4 | 7D2 | 11-24/4.0 L | 16-35/2.8 L III | 24/1.4 L II | 24-105/4.0 L IS | 40/2.8 STM | 85/1.2 L II | 100/2.8 L macro IS | 70-200/2.8 L IS II | 100-400 L IS II | 400/4.0 DO L II | 580EXII | EF 1.4x III | Gitzo monopod GM2541 | Gitzo tripod GT2541 | Really Right Stuff ball head & plates | B+W & Singh-Ray filters

  
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My weekend with 70-200 2.8 IS and 2x TC
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