At the Corning Glass Museum, there's an interesting area that shows how
separate elements cause colors to separate. Cementing elements together
brings the colors together to focus at the same point.
_________________________________
John Hermanson www.zuiko.com
Camtech, Olympus Sales & Service since 1977
New OM & Used, Digital, Pearlcorders, Binoculars
21 South Lane, Huntington NY 11743-4714
631-424-2121
_________________________________
----- Original Message -----
From: "Wayne Harridge" <wayneharridge@xxxxxxxxxxxxxxx>
To: "olympus @ Zuiko . sls . bc . ca" <olympus@xxxxxxxxxxxxxxx>
Sent: Thursday, March 21, 2002 5:26 PM
Subject: Re: Re: [OM] Lens element groups
>
>
>
>
> > Paul Farrar <farrar@xxxxxxxxxxxx> wrote:
> >
>
> ...stuff about cemented elements in a group...
>
>
> I have a lens (not Zuiko !) which appears to have some separation of a
cemented
> group, shows some coloured interference fringes. What is likely to be the
effect
> of this separation on the resultant images ? As yet I have not had a
chance to
> test this lens and look at the results and don't have a good example to
compare it
> with anyhow.
>
>
> Wayne Harridge
>
> http://members.optusnet.com.au/~w_harridge
>
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>
>
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