Re: [APML] Light leak in the camera.

["cherrio" <cherrio@shocking.com>]

Wes,
A light leak in a camera usually leaves streaks in the tracks(the little
square holes used to advance the film) on the film. The light almost always
invades this area also. I have experienced the same thing you are describing
when I crimped the film when I load or unloaded it, and then the chemicals
used to develop the film caused a chemical burn???????
Hope this helps.
Ray Rochelle

----- Original Message -----
From: "Wes Fraser" <ugly_411@sympatico.ca>
To: <astro-photo@seds.org>
Sent: Monday, August 12, 2002 8:41 AM
Subject: Re: [APML] Light leak in the camera.


> No, I am affraid not. This is definately a light leek in tha camera. I had
> this problem with some daytime photography and thought that the camera
store
> had repaired my camera. It turns out that there was me than one location
> where the light was leaking.
>
> This streak is large. It is much brighter than anything that could occur
due
> to reflections of stars.
>
> Wes
> ----- Original Message -----
> From: <KGKIRKLEY@aol.com>
> To: <astro-photo@seds.org>
> Sent: Monday, August 12, 2002 11:39 AM
> Subject: Re: [APML] Light leak in the camera.
>
>
> >
> > In a message dated 8/12/02 9:37:24 AM, ugly_411@sympatico.ca writes:
> >
> > << I have noticed a problem with the first succesful picture I took with
> my
> > new R200-SS. The shot was a 20-minute of M8 on elite-chrome 200
processed
> at
> > 200 and turned out beautifully. Well... almost beautifully. Just above
M8
> > there is a bright blue curving streak of light that was a result of a
> light
> > leak. The shot is such a nice shot that I don't want it to go to waste.
> Does
> > any one know a method that I could use to get rid of this streak?
> >
> > Sorry about not posting the image yet, but I haven't yet got it in
digital
> > format.
> >
> > Wes
> > Astrophysics @ Mcmaster University. >>
> >
> > Wes:
> > I haven't seen the image, but what you describe is probably not a light
> leak
> > situation.
> > Bright blue streaks are sometimes caused by a bright star at the edge of
> or
> > just outside the field of view. The bright light from the star is
> reflecting
> > or bouncing off something on the walls of the optical system. This could
> be
> > in the OTA but is most probably in the camera body. Check your
photograph
> > against a star chart of the area and see if there is a bright star just
> > outside your image area.
> >
> > This sort of reflection is difficult to prevent but can sometimes be
seen
> in
> > a camera viewfinder if one looks hard enough.
> >
> > Kent Kirkley
> >
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