Re: [APML] Focusing OM-1 - but what about the Nikon F2?

["Stuart Heggie" <stuart.j.heggie@sympatico.ca>]

Duncan, I have read all of Jerry's writings on this topic (and most on other topics). I am left
with the impression that for my camera lenses I can use the Hartmann Mask approach with a
winter/summer calibration which I have done. For my scope, I want something  real-time and
repeatable and he seems to be firmly in the KEF camp. Thanks!
Stuart
----- Original Message -----
From: "Duncan Munro" <dmunro@sfu.ca>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Saturday, November 27, 2004 2:13 PM
Subject: Re: [APML] Focusing OM-1 - but what about the Nikon F2?


> Hi. It turns out that Jerry Lodriguss has a whole series of articles
> discussing different methods of focusing:
>
> http://www.astropix.com/HTML/I_ASTROP/TOC_AP.HTM
>
>
> makes for good reading.
>
>
> cheers
>
> Duncan
>
> Stuart Heggie wrote:
>
> >Hey everyone - I want to say THANKS for the dialogue and the friendly banter too. The focus
> >challenge of a system seems to rise exponentially as f-ratio goes down. My f/4 newtonian and my
> >f3.5 long lens are really tough to get focused well.
> >
> >I am going to go with a KEF. If this list serves no other purpose (beyond the pure pleasure of
so
> >many great images) it would be in getting to skip a lot of hassle and jump to a reliable answer
> >fast.
> >
> >Thanks!!!
> >Stuart
> >
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> >
> >
> >
> >
> >
>
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