03-08-2014, 03:46 AM
I do not think so. e.g. a 75mm f/1.8 has an identical bokeh behavior on all formats assuming the same distance and aperture settings. The format just defines the covered image field.
If you want to have the same field-of-view, the situation changes but this is a different discussion.
Tonal range is a sensor characteristic - mostly depending on the pixel density. If you take e.g. the E-M1 vs the A7R there's not much in it.
Now that's the theory, in practice there's of course more to that. e.g. MFT lenses are designed to a smaller circle-of-confusion - thus sharper than a FF lens (one of the reasons why MFT lenses are comparatively expensive).
e.g. you may have noticed that Olympus provides MTFs based on 60lp/mm vs 30lp/mm over at Nikon.
Sharper lenses tend to have a rougher bokeh. And assuming the same field-of-view, there's simply much less blur in the first place - blur - not bokeh.
If you want to have the same field-of-view, the situation changes but this is a different discussion.
Tonal range is a sensor characteristic - mostly depending on the pixel density. If you take e.g. the E-M1 vs the A7R there's not much in it.
Now that's the theory, in practice there's of course more to that. e.g. MFT lenses are designed to a smaller circle-of-confusion - thus sharper than a FF lens (one of the reasons why MFT lenses are comparatively expensive).
e.g. you may have noticed that Olympus provides MTFs based on 60lp/mm vs 30lp/mm over at Nikon.
Sharper lenses tend to have a rougher bokeh. And assuming the same field-of-view, there's simply much less blur in the first place - blur - not bokeh.