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Thread started 19 May 2013 (Sunday) 23:10
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What would you choose? f/2.8 or 400mm

 
Wilt
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May 20, 2013 21:27 |  #16

photozone.de used to publish tests of the various Canon 70-200mm lenses with a Canon 1.4x telextender...generall​y there was a loss of about 10% in MTF scores. Unfortunately the tests no longer do this, so we have to rely only upon verbal lore...

70-200mm f/4L at 90% MTF 100-400 MTF


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placidbabe
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May 20, 2013 22:44 |  #17

Tommy1957 wrote in post #15950750 (external link)
I have a Sigma 70-200 f/2.8 OS HSM and 100-400L. Completely different lenses for different purposes. I also challenge your assertion that the 70-200 II w/1.4x TC is sharper at f/5.6 & 300mm than the 100-400L. Post some evidence, please.

I did provide evidence in the first post.

http://www.the-digital-picture.com …omp=0&FLIComp=5​&APIComp=0 (external link)

Though I do know one picture does not equal the absolute truth, which is why I asked people if it seemed accurate to those who owned the lenses.

As far as the lens being completely different purposes, that may be so, but for the last 4 years I have been using the 70-200 as my only tele for wildlife... So to me, they would have the exact same purposes. I guess if I ended up keeping both, the 70-200 would only be used for indoor events... I don't go to many of them.


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May 21, 2013 04:02 |  #18

Hulka wrote in post #15951271 (external link)
sorry better overall at 400.

My turn!

Better at shooting what type of shots?


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ktan7
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May 21, 2013 09:10 |  #19

I have a Canon 70-200 f/2.8 L and 100-400L. I use the 2.8L more because of the aperture and glass.


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What would you choose? f/2.8 or 400mm
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