Filmscanners mailing list archive (email@example.com)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: filmscanners: NIKON LS 4000 AND D1X
> > > There is one good thing about that tough. The CCD require that the
> > rays
> > > come in at 90 degrees.
> > No they don't. Different CCDs and different CCD designs have
> > different
> > acceptable angles. It is true that with wide angle lenses, you do
> > get
> > falloff at the edges, and it is probably worse than film in certain
> > CCD
> > designs.
> Well, sure they don't require it if you don't care about the fall off.
NONE of them "require" 90 degrees! If they did, you would only get a single
ray in the center! All CCDs used in cameras have SOME angle of view before
> And yes, it is true that some CCDs are more suspectable to it then
> others which depends on the design and angle. But then on an SLRs (as
> the 1Dx we are talking about) you can have so many different lenses
> from 1800mm to one with a 220 degree coverage that you can't really
> cover all angles.
Why not? If a CCD is designed such that it accommodates these lenses, as
well as any film can, then what's the problem? This is a relatively new
issue to CCD designers and processes. I have no doubt that this issue will
be less and less with new CCDs.
Do you even have ANY idea what lense starts to show falloff on the 1Dx?