[rollei_list] Re: Really Off-Topic, paraxial lenses for digital cameras
- From: Thor Legvold <tlegvold@xxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Thu, 2 Jul 2009 00:43:59 +0200
I'm not Richard, but....
On 2. juli. 2009, at 00.24, Don Williams wrote:
(I still don't understand why my film scanner doesn't care very much
if the film is not flat against the glass, how does it still produce
sharp scans?)
Because it has a lens optimized for flat field and a small aperture
(high F stop) resulting in depth of field beyond the surface of the
glass.
That's my best guess.
I'll leave the rest to the engineers :-)
DAW
Thor
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