Re: Chromatic abberation + IR (fwd)

[Wayde Allen <allen@xxxxxxxxxxxxxxxx>]

My first try at posting this reply appears to have shown up as a blank
message so I thought I'd resend it.  I hope that this lost message
syndrome can be corrected soon.  (The reply to my question about
developing Konica 750 in HC110 also turned up blank.  I still need this
information.)

- Wayde

---------- Forwarded message ----------

On Tue, 22 Apr 1997 pbadcock@xxxxxxxxxxxxxxx wrote:

> one, well I think I did.  I'm assuming that the majority of your lenses
> these days have special coatings on them to avoid chromatic abberation
> in the visible range, This attempts to correct for the fact that light
> of different colors refracts through the lens(es) at different angles.

As far as I know, the coatings on lenses do not correct for chromatic
abberation.  Rather they are there to reduce internal reflection and lens
flare.  Chromatic abberation is I believe dependent on the lens design
rather than the antireflection coatings used.

- Wayde
  (allen@xxxxxxxxxxxxxxxx) 



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