Here a little test executed today. I am not too much into testing and this is not scientific.
You will find a shot done with the old extender and one done with th enew extender placed on a 70-200 f/2.8L IS II, on tripod, stabilizer off, f/4, focus done on the middle straw that passes over the nose; focus was mode the this specific point. No sharpening was applied.
Old extender full shot
New extender full shot
Old extender crop 100%
New extender crop 100%
I beleive the new one is slightly sharper
I omade observations that the new one was not faster. I did not see differences in chromatic aberration.
And yes, the new one has 7 xcrews instead of 4 for the old one on the camera mount siside (that\'s for the engineers and I personnaly do not care at all...)
JD
Dec 27, 2010 at 09:47 PM
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