03-20-2011, 01:20 PM
[quote name='dave9t5' timestamp='1300587505' post='6955']
The "Rating Scale" for K-5 is missing from the DAL 35/2.4 test, which is causing some confusion.
For example, this is the one for K-20:
![[Image: rating_k10d.gif]](http://www.opticallimits.com/images/8Reviews/lenses/rating_k10d.gif)
But the vertical axis of the new test is still in the 5 divisions that represent [ex/very good/good/fair/poor].
[/quote]
In addition, what do those 2350 (K10) and 2700 (K-5) maximum resolution numbers represent? They are not Nyquest frequencies for sure. If they were the maximum resolution numbers, then yes, you could say that the identical (from the resolution point of view) lens would resolve for example 95% of the maximum resolution of a given sensor. So, do we know what are those numbers? And how they were obtained? Using some exteremely sharp lens with almost unlimited resolution?
Thanks.
The "Rating Scale" for K-5 is missing from the DAL 35/2.4 test, which is causing some confusion.
For example, this is the one for K-20:
But the vertical axis of the new test is still in the 5 divisions that represent [ex/very good/good/fair/poor].
[/quote]
In addition, what do those 2350 (K10) and 2700 (K-5) maximum resolution numbers represent? They are not Nyquest frequencies for sure. If they were the maximum resolution numbers, then yes, you could say that the identical (from the resolution point of view) lens would resolve for example 95% of the maximum resolution of a given sensor. So, do we know what are those numbers? And how they were obtained? Using some exteremely sharp lens with almost unlimited resolution?
Thanks.