OccAeon Offline Upload & Sell: Off
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p.1 #9 · p.1 #9 · 70-300 at 300 versus 70-200f4 and cropping | |
mmurph wrote:
^^^ Very nice comparison.
I wonder if a similar, standardized comparison would be useful for other lenses? You mentioned 35 feet and flash for example. How large was the text?
It might be interesting to see corners of something shot wide open. I have the Sigma 50-150 2.8 OS for Nikon, on the D7100. I also have a 2x tele converter, which gets us to 300 at 5.6 on the D7100 that you also used ...
Thanks! The font was 12pt, on white paper (I used autoexposure, so it came out gray, and I didn't bother to fix it). I'd do more tests, but I've long since sold the 70-300 VR.
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AnnJS wrote:
Which algorithm did you use when you down-sampled because that can make quite a difference to the results? Try Bicubic Sharper and see how it then compares.
I used whatever the default in Photoshop is. I'm not sure that running a sharpener on one side while leaving the other side unsharpened would be a fair comparison.
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