09-27-2011, 05:41 PM
[quote name='RussellB' timestamp='1317009344' post='11856']
Great posts, Wim, thanks much. So nice to have the super simplified diffraction limit formulas of 1600 over aperture for lens aerial resolution with 9% MTF...and the roughly "3.2 times pixel pitch in micrometers" formula for smallest aperture that can still deliver resolution approaching what the sensor can resolve. What's the 50% aerial MTF version of the 1600/aperture formula? Obviously the number 1600 would be smaller.
[/quote]
Hi Russel,
Thank you for your kind words. As to your question: I did the calculations, but currently can't get at those figures easily, and don't particularly want to redo them if you don't mind. I will come back to you on this as soon as I can (which may only be the upcoming weekend). Rather busy with work, and far from home currently.
Kind regards, Wim
Great posts, Wim, thanks much. So nice to have the super simplified diffraction limit formulas of 1600 over aperture for lens aerial resolution with 9% MTF...and the roughly "3.2 times pixel pitch in micrometers" formula for smallest aperture that can still deliver resolution approaching what the sensor can resolve. What's the 50% aerial MTF version of the 1600/aperture formula? Obviously the number 1600 would be smaller.
[/quote]
Hi Russel,
Thank you for your kind words. As to your question: I did the calculations, but currently can't get at those figures easily, and don't particularly want to redo them if you don't mind. I will come back to you on this as soon as I can (which may only be the upcoming weekend). Rather busy with work, and far from home currently.
Kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....