02-20-2012, 01:35 AM
[quote name='AAC7man' timestamp='1329693520' post='15933']
Yes, thanks Wim, I understand your logic.
What we see, however is that in moving from 10MP to 16MP the centre performance improves but the edges/corners do not. It's not a small difference. It's not like moving from DX to FX as there is no physical effect from sensor size and a deterioration in the telecentric efficiency of the lens. It does in fact LOOK like a comparison of DX and FX! ? ? ?
[/quote]
I am also surprised by the test result of the 14-24mm on D7000. Althoguh I understand that as the sensor resolution increases (but the sensor size does not change) the system border/corner resolution becomes worse relative to the center resolution (at the same aperture and focal length) since at higher sensor resolution the system resolution resembles more the lens resolution, the border/corner relative to center resolution is worse on D7000 (DX) than the same lens on D3x (FX). Is this related to the magic "12-14MP" or "16-18MP" mentioned by Wim?
Frank
Yes, thanks Wim, I understand your logic.
What we see, however is that in moving from 10MP to 16MP the centre performance improves but the edges/corners do not. It's not a small difference. It's not like moving from DX to FX as there is no physical effect from sensor size and a deterioration in the telecentric efficiency of the lens. It does in fact LOOK like a comparison of DX and FX! ? ? ?
[/quote]
I am also surprised by the test result of the 14-24mm on D7000. Althoguh I understand that as the sensor resolution increases (but the sensor size does not change) the system border/corner resolution becomes worse relative to the center resolution (at the same aperture and focal length) since at higher sensor resolution the system resolution resembles more the lens resolution, the border/corner relative to center resolution is worse on D7000 (DX) than the same lens on D3x (FX). Is this related to the magic "12-14MP" or "16-18MP" mentioned by Wim?
Frank