Re: [APML] How do you N2 Purge an OM-1?

[Philip Perkins <philip@astrocruise.com>]

Yes, it's a good question as to how deep and invasive the surgery is going 
to be on a cherished camera that might have good resale value.  In the case 
of the F2 I didn't think twice - it seemed quite cheap and after all I 
purchased it solely as an astro camera.  Also I purchased a second F2 in 
case I "killed" the first F2.  In fact the mod went very well and I have 
not needed to modify the second camera.  But of course the modified camera 
*can* have good resale value - to another astrophotographer!

The way that the tripod adapter nozzle was made was Chris Heapy's idea.  I 
just asked for something that would screw into a tripod socket.  One thing 
about Chris is that he will take an idea and produce something completely 
unexpected - and better than expected too.  I expect that he could easily 
turn out a few more of those.  They are small so would be easy to ship to 
the US too.  Chris is still going strong - you may want to contact him:
http://easyweb.easynet.co.uk/~chrish/homepage.htm

--Philip


At 14:34 28/08/02 -0700, you wrote:
>Steve,
>I don't think I would drill holes in anything you
>might want to list on Astromart later. (ie. re-sale
>value of a telescope) I went through the tripod
>adapter (ala Phil Perkins) on my Canon F-1. I used
>shrink tubing to route thru to the film canister area,
>just like Phil. The tubing was the right diameter to
>weave past the mechanism in the bottom. I also had to
>take out the adapter and drill while holding it in a
>vice.I can send you some images off list if you're
>interested. The toughest part was finding a 1/4x20
>fitting to feed in the gas. I found some hollow
>threaded thingamajigs at Lowe's or Eagle Hardware. Or
>maybe it was Home Depot. I believe it was Bobby
>Middleton mentioned them last year in a thread.
>
>Jeff Allen


Philip Perkins - philip@astrocruise.com
Wiltshire UK & Luberon France
Astrocruise - http://www.astrocruise.com


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