Re: ArtPan problem.

["M. Denis Hill" <denis@xxxxxxxxxxx>]

Jim Dunn wrote:

> I have an occasional recurring problem with my ArtPanorama..... the right hand
> edge of the transparency ..... about 3 to 5cm in from the edge is often soft,
> softish or very soft..... a recent film had a what appeared to be a double
> exposure of "only" this area..... Any ideas on what is causing it and how to
> fix it............The ArtPan loads on the right and takes up on the left.

This brings to mind a problem that had me stumped for a while with a V-Pan.
First frame would be fine, but subsequent frames were way out of focus on the
right side. I checked film guide roller height, groundglass/film insert
alignment, pressure plate springs, and other stuff I've forgotten.

I eventually determined that it was a pressure plate problem, evidently poor
finish (not smooth). The film was buckling on the take-up side due to drag.

My fix was to shim the pressure plate up .007" on the sides, allowing the film
to slip through a channel with less friction. In a later discussion with another
V-Pan owner, I learned that Chet Hanchette had started doing the same thing on
late production film inserts.

I've not, however, experienced this problem with my old-style Fuji, and there is
no comparison between the pressure plate finishes on the Fuji and the V-Pan. In
order to verify if it's the same problem, you'd have to remove the lens and
watch a roll of film as you crank it through.

Denis

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M. Denis Hill | Area 360 Communications
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