Re: [APML] Electro-Static Discharge and hypered 120 format Tech Pan

["Shekhar Borde" <shekhar@prodigy.net>]

When you handle film, you could use one of those ESD wrist straps to 
stay grounded. 

Shekhar


----- Original Message ----- 
From: "Steve..." <swalters@att.net>
To: "APML" <astro-photo@seds.org>
Sent: Thursday, April 04, 2002 10:55 PM
Subject: [APML] Electro-Static Discharge and hypered 120 format Tech Pan


> I have found little crescents here and there on some developed hypered 120
> format Tech Pan film that I think are caused by electrostatic discharge
> (ESD) when I remove the paper backing.
> 
> So, my question is this: Of those who are hypering 120 format Tech Pan and
> then removing the paper, what are you doing to avoid ESD?
> 
> Here are some aspects of the problem I have:
> 
> - I must leave the paper backing on when hypering or I get uneven hypering
> of the film. I think this is pretty common knowledge and I have definitely
> demonstrated it by trying. I get "bands" on the film.
> 
> - I must remove the paper before using the film because I have a vacuum
> camera back that would be defeated if the paper was left on.
> 
> - After hypering, the film and paper are highly dessicated (dry) which makes
> ESD more likely. It's like pulling socks apart after they come out of a
> dryer. Zapppp....
> 
> Any suggestions?
> 
> Thanks!
> 
> Steve...
> 
> swalters@att.net
> http://Astrophoto.home.att.net
> 
> 
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