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Post by William Nguyen on Sept 28, 2008 13:46:18 GMT
Here's one for Romy... I took this today with the 50D, 600 f4 + 1.4x. Full Frame - processed - ISO400, f9.0, 1/200, "1344mm"  100% Crop of above image - not processed - ISO400, f9.0, 1/200, "1344mm"  Cheers William |
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Post by Romy Ocon on Sept 28, 2008 14:01:02 GMT
Love the composition, Will!
Looks like the tiny 50D pixels are already stretching the resolution of the 600 + 1.4x. I expect this because my 500 f4 + 1.4x is sharpest with my 1D2, then 20D and least sharp with the 40D, all at the pixel level.
A 20D + 500 f4 + 2x TC has a roughly equivalent reach via pixel density as a 50D + 500 f4 + 1.4x TC. This is a good thing though..... reach is extended via pixel density (with working AF and no loss of light), rather than with an optical TC. IOW, we have a choice on how to "harvest" the excess resolution of the lens - use a TC, or use smaller pixels.
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