Janet - It will confirm that the film is being loaded properly in the back. If you are getting the edge markings out, your development process is working properly, no images on the film means that light is not getting to the film. You tested the shutter (you said that you saw the shutter open and close when you had the back off, so the only thing remaining is that there is something keeping the light from hitting the film - perhaps the film is not loaded properly? The second thing that this will do is confirm to you that you can expose the film when you see a black frame. --- Janet Cull <jcull@xxxxxxxxxxxxx> wrote: > >>>In the middle of your test roll, take the back > off of > the camera, pull the dark slide out, and make sure > that you see the film in there. When you develop > the > roll, regardless of how you have exposed the rest of > the roll, that frame should come out black.<<< > > Mark, > > What is the purpose of that? What will it tell me? > Thanks for > replying. > > Janet __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.