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p.1 #1 · p.1 #1 · actual sample crops comparing Canon 1.4x iii and 2x iii | |
I was hoping someone might be able to help provide actual samples showing the sharpness difference and any degredation in photo image quality.
I have the EF 70-200 F2.8 II that for a couple of years have used the Canon 2x iii to shoot field sports on my Canon 7D. The I have been quite pleased with the results derived from the utility of using the TC. However, of couse, there are some misfocused / poor focus etc that could stem from a variety of reasons; but people generally say that the results would be sharper with the 1.4x iii.
SO, does anyone have this lens 70-200 mk II and both TCs (version iii) to make the following comparisons shooting 25-50x the FL. Ideally 7D but any camera would be good.
focal length mm shown and defined as lens+ TC mm not using crop factor. I am most interested in #3 below.
1. FL 140mm Total -> 1.4 iii f4 x vs 2x iii f5.6 and f5.6vs f5.6
2. FL 210mm Total -> 1.4 iii f4 x vs 2x iii f5.6 and f5.6vs f5.6
3. FL 280mm Total -> 1.4 iii f4 x vs 2x iii f5.6 and f5.6vs f5.6
4. FL 400mm** Total -> **1.4iii cropped to 400mm equivalent vs 2xiii. shot at same distance. f4 x vs 2x iii f5.6 and f5.6vs f5.6
THanks in advance.
Guy
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