Re: [APML] Undeveloped(?) spots on film?

[Jerry Lodriguss <jml@astropix.com>]

>Jerry> Sometimes dust or hairs will fall on the film during the
>     Jerry> actual exposure, and it can look like something in the
>     Jerry> emulsion, when actually it was from the speck masking the
>     Jerry> emulsion from the light from the sky.
>
>Okay, that makes sense.  I'm going to have to go back and see if this
>has happened before.  Maybe I was just careless loading the film.  I
>usually preload inside, but this time I switched film and lenses
>outdoors.

>I've put up a small section at
>
>     http://www.astrofoto.org/people/roland/cygnus-p400f-defect.jpg


Hi Roland,

That's what it is, definitely some stuff that fell on the film during the 
exposure. Don't feel bad, it's hard to keep off the film. The scope is 
usually pointing up during the exposure, and gravity will have its way.

Jerry

Astronomical photography: http://www.astropix.com



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