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From: RolandRB on 29 Mar 2010 01:40
On Mar 29, 12:50 am, "K W Hart" <kwha...(a)verizon.net> wrote:
> > "RolandRB" <rolandbe...(a)hotmail.com> skrev i en meddelelse
> >news:2a79eb0f-1331-4643-a969-091801b2937e(a)q15g2000yqj.googlegroups.com....
> > Taking Sharp Photos Using a 6x9 Folding Camera
>
> > Author: Roland Rashleigh-Berry
> > Version: Draft 1.0
> > Date: 20 March 2010
>
> > Introduction
>
> > Those of you who still use film cameras might from time to time
> > consider the option of using a 6x9 folding camera. Here you have a
> > large film area (6cm x 9cm) with the associated possibility of
> > capturing a great deal of detail, combined with the convenience of
> > being able to fit the camera in a large pocket. Many people have tried
> > this but are disappointed with the results and give up on the idea.
> > There are good reasons why it is difficult to get good results but it
> > is possible if you follow some guidelines. These will be described
> > here.
>
> snip
>
> > Wind on just before taking the photo
>
> > You need the film to be as flat as possible. The film will be flattest
> > a few seconds just after being wound on so you should wind on just
> > before taking the photograph and wait just a few seconds for the film
> > to flatten further. If you delay taking the shot for whatever reason
> > then retighten the film by using the wind-on knob without actually
> > advancing the film.
>
> snip
>
> I don't understand the reasoning here. If you wind the film just before
> shooting, the film is going to be just coming off the roll. On the other
> hand, if you wind the film and allow it to 'rest' in the film exposure
> plane, it will tend to lose it's curl over time.
> I've purchased used cameras that had film left in them for a long period of
> time. The film would have a uniform curl except where it rested in the film
> plane- that part of the film would be fairly flat. It seems to me that for
> the flattest film, you should wind it until the film is in position for
> exposure, and put the camera away for a year or two before taking a picture.
> This should give the flattest film in the film exposure area, and also
> conserve film.

You wouldn't even have to bother exposing the film if you did that.
Folders have very poor light seals.
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