08-10-2010, 08:45 PM
[quote name='Klaus' timestamp='1281457195' post='1648']
Field curvature is taken care of in all our tests.
e.g. the Voigtländer 15mm lens is supposed to be a very decent performer when used on the a Leica M6 (film) yet it performs poor on the M9 so there is a sensor dependency somewhere. The Z50 is a much more moderate lens so it SHOULD perform better especially on MFT.
If I had to guess we're primarily talking about the design of the micro-lenses on the sensors possibly in conjunction with the "depth" of the sensitive layer of the (retracted) photo-diodes.
[/quote]
Yes, that, and the relative thickness of film, which covers up a lot of field curvature problems already, and the fact that silicon also has optical properties, unlike the emulsion used in film. And at certain angles of incidence this really comes into play, especially because about half of the light is reflected back as well (with film that is only about 2-3%).
Kind regards, Wim
Field curvature is taken care of in all our tests.
e.g. the Voigtländer 15mm lens is supposed to be a very decent performer when used on the a Leica M6 (film) yet it performs poor on the M9 so there is a sensor dependency somewhere. The Z50 is a much more moderate lens so it SHOULD perform better especially on MFT.
If I had to guess we're primarily talking about the design of the micro-lenses on the sensors possibly in conjunction with the "depth" of the sensitive layer of the (retracted) photo-diodes.
[/quote]
Yes, that, and the relative thickness of film, which covers up a lot of field curvature problems already, and the fact that silicon also has optical properties, unlike the emulsion used in film. And at certain angles of incidence this really comes into play, especially because about half of the light is reflected back as well (with film that is only about 2-3%).
Kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....