----- Original Message ----- From: Ayash Kanto Mukherjee Subject: Re: Max. # of B/W film.
> > Can I use that stock solution further for say another roll of 36 exposure > film? From your reply, it seems that the answer is no. Correct. The developer would be exhausted after processing. > Sorry, I could not get the second sentence of your reply. Could you please > explain a bit further, if it is not annoying? What you called uprating is one of my pet peeves. The generic term is actually "pushing" the film, and it causes a loss of shadow detail and an increase in contrast. If you are shooting in very flat light, it is not so bad, but often, the environment that pushed film finds itself being used in is high contrast stuff, such as night street photography. > > I shall like to know one more thing. Suppose I am using films without > uprating and all the films are of identical speeds. Now there is a term > called "Batch Processing" where more than one films are developed in one > go. Now suppose that I have 4 rolls of films to be processed. Suppose I am > using a negetive developing tank which can accept 2 rolls > of film at once. In "Batch Processing", am I supposed to change the > developer solution with fresh solution after processing 2 rolls or > shall I continue using the same developer solution? I would use the developer once and discard it, on general principles. Stay with the rule of thumb (for D-76, anyway) which is minimum 100ml of stock solution per roll of film, and discard after use. William Robb - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .