Philippe, the way I understand it, the design of the lenses take into
account the sensor cover glass. For example, when you buy any of the
(too-amazing-to-even-contemplate) Rodenstock HR Digaron wide-angle
lenses for medium format digital, they ship the lens with an extra rear
"filter" that you have to screw on if you use the lens with film, to
compensate for the fact that there is no sensor glass.
I (and this is a guess...) imagine teeny tiny compact cameras with their
teeny tiny lenses are even more sensitive to the presence or absence of
this piece of glass in front of the capture medium.
Dawid
On Wed, 2012-09-05 at 00:11 +0200, philippe.amard wrote:
> Le 5 sept. 12 à 00:02, John Hermanson a écrit :
>
> > You're being funny right?
> >
> > You can remove the IR filter but you have to replace it with an equal
> > thickness of "regular" glass or whatever.
>
> What for?
>
> The only impediment I see is that the sensor will be bare, and
> cleaning will be near ... impossible.
> Else the more layers, the more distortion, reflection, usw you get.
> You can't win on both sides, can you.
>
> Ph, who knows nothing about it all
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