02-24-2011, 09:17 AM
I was going to open a new thread, but I think it fits here also...
I was reading H.H. Nasse's article about MTF readings and found a very interesting graph (see attached jpeg). I was wondering if the max resolution which the human eye can see -concerning different setups- could be added to this chart... e.g. for an A4 sized image seen from a 25cm distance... Mr. Nasse calls this "least distance of distinct vision" and tells that it corresponds to 66 lp/mm on 35mm format. (By the way it's interesting to see the 24mp performance at seriously diffraction kicked aperture compared to optimum aperture with 12mp).
What if for example the image was seen on a 22" monitor (1600x1200 pixels) from 50cm? Is there an easy way to calculate the lp/mm (or lp/ih) for these kind of alternative setups?
PS: I'm not sure but I think the graph simply omits the other IQ factors of the both systems (low-pass filter, micro lenses, interpolation algorithms, image sharpening etc...)
Serkan
I was reading H.H. Nasse's article about MTF readings and found a very interesting graph (see attached jpeg). I was wondering if the max resolution which the human eye can see -concerning different setups- could be added to this chart... e.g. for an A4 sized image seen from a 25cm distance... Mr. Nasse calls this "least distance of distinct vision" and tells that it corresponds to 66 lp/mm on 35mm format. (By the way it's interesting to see the 24mp performance at seriously diffraction kicked aperture compared to optimum aperture with 12mp).
What if for example the image was seen on a 22" monitor (1600x1200 pixels) from 50cm? Is there an easy way to calculate the lp/mm (or lp/ih) for these kind of alternative setups?
PS: I'm not sure but I think the graph simply omits the other IQ factors of the both systems (low-pass filter, micro lenses, interpolation algorithms, image sharpening etc...)
Serkan