11-04-2023, 04:54 PM
The MTF values only apply for a combination of lens and sensor. If you use a higher resolution sensor, the values increase for the same lens, at least in the center.
Therefore it is recommended to compare lenses only for the same sensor. With some limitations, even when used in different systems.
That is the reason why Klaus has this comment on his website, not to compare different sensors/systems but rely on his relative judgement.
And yes, good means acceptable without too many computational corrections, not more. A really good lens to todays standard should be at least very good in the center while we accept good at the borders.
Therefore it is recommended to compare lenses only for the same sensor. With some limitations, even when used in different systems.
That is the reason why Klaus has this comment on his website, not to compare different sensors/systems but rely on his relative judgement.
And yes, good means acceptable without too many computational corrections, not more. A really good lens to todays standard should be at least very good in the center while we accept good at the borders.