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Re: [OM] astro matte screen

Subject: Re: [OM] astro matte screen
From: Paul Van Tuyl <olympusguy@xxxxxxxx>
Date: Thu, 11 Jun 1998 23:59:03 -0500
The most common screen is the 1-8, however a growing number on the East
Coast are using the 1-13, and 2-13. Paul.

Peter Leyssens wrote:

> Hi,
>
> I'm catching up with my e-mails after my trip to Japan and I found this
> message :
>
> >In anybody's humble opinion, what is the best screen to use for astro-
> >photography.  I can't see a thing through my 1-4.
>
> In the days I did astrophotography, I did the following.  I have to
> admit it sounds amateuristic and it will not work if your lens doesn't
> stop exactly at infinity.  Proceed at your own risk :
>
> Remove your matte screen and use your camera like that.  Store the matte
> screen safely !  It fits quite nicely into a plastic box of a roll of
> film (the most polyvalent piece of packing I've ever seen !).  If you
> work this way, your camera doubles as a nice small telescope.  E.g. with
> a 300mm you can fit in the Pleiads and have a *great* view.  Do note
> that you'll have a round image !
>
> I think for most Zuiko lenses it would work OK if you stop down 2 stops
> from the maximum aperture.  You would get crisp images this way, even
> though you didn't quite focus.
>
> I never really took pictures like this (and the ones I took were ruined
> by horrible development & even worse printing in the most terrible dark
> room I ever saw : they didn't even have a thermometer !).  But it was
> great for viewing.
>
> --
> Peter Leyssens
> Eonic Systems
>
> Personal e-mail : Peter.Leyssens@xxxxxxxxx
> Support mail : support@xxxxxxxxx
>
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