From: Sandy King (sanking@hubcap.clemson.edu)
Date: 03/18/01-09:37:46 AM Z
>The two plastic holders are very new. I bought them at an equipment closeout
>brand new for $5 each (2). Occasionally when I try to reinsert the
>darkslides there is a lot of resistance in the "throat" or opening of the
>holder. It then requires a lot of patience to insert the slide without
>pivoting the film holder open causing film fog.
It sounds to me that you may have something wrong with the light baffle and
this could be causing excessive pressure on the slide. I have worked with a
lot of older holders and the amount of resistance you describe would not be
considered normal even for least well built ones. I would suggest that you
open up the holder and see what is going on with the light baffle. It is
relatively easly to check the baffle with most older holders.
Sandy King
>Folmer-Schwing which leaks a small amount of light thus increasing my
>anxiety about the stiffness of the replacement of the darkslide and the
>length of time required to get the slide back in place. The light leak is so
>minuscule that it does not affect exposures that are less that several
>seconds long. I learned the hard way that the camera leaks light when one
>afternoon I had the darkslides out for several minutes waiting for the wind
>to die down, but I digress here.
>
>I've cleaned the slide channels with compressed air and that seemed to help
>a lot with one of them but the other two just seem to "beg" for some king of
>"lube". The wood holder is in very good shape with a metal film holder
>septum. The darkslide channel for it appears to be aluminum.
>
>Thanks,
>
>Don Bryant
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