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Photo Forum / Film Photography / Film and Labs / September 2004Area of 35mm film
I've come across a need to know the surface area of 35mm and 120 film. I want to develop sheet film and I need to know how many sheets I can develop in a given amount of chemistry. Unfortunatly the instructions only list how many rolls of 35mm and 120 can be processed for a given amount of chemistry. Thanks  SignatureKeep working millions on welfare depend on you ------------------- fwp@deepthought.com > I've come across a need to know the surface area of 35mm and 120 film. > [quoted text clipped - 6 lines] > > Thanks Frank, It's not exact, but close. Rule of thumb says both are 80 square inches. I think the rule comes from both will fit on an 8X10 contact sheet. 120 measures 31" X 2 7/16" (75.5625 sq"). I don't have a scrap roll of 135 around so I can't give you exact measurements. Jim > I've come across a need to know the surface area of 35mm and 120 film. > > I want to develop sheet film and I need to know how many sheets I can develop > in a given amount of chemistry. Unfortunatly the instructions only list how > many rolls of 35mm and 120 can be processed for a given amount of chemistry. Usual number I see is 1 35mm 36 exposure equals 1 8x10. Nick > I've come across a need to know the surface area of 35mm and 120 film. > [quoted text clipped - 3 lines] > > Thanks 1-120 = 1-35mm 36 exp = 1-8x10 sheet. Thanks for the replies. I just got the ability to print color and want to give processing the film a try!! :-) The Tetenal C41 press kit costs $17 and by my calculations I can process 24 sheets of film with it. My local lab charges two dollars a sheet. The best part is that total processing time including the was is ten minutes!! I can do that. : I've come across a need to know the surface area of 35mm and 120 film. : I want to develop sheet film and I need to know how many sheets I can develop : in a given amount of chemistry. Unfortunatly the instructions only list how : many rolls of 35mm and 120 can be processed for a given amount of chemistry. : Thanks SignatureKeep working millions on welfare depend on you ------------------- fwp@deepthought.com > Thanks for the replies. I just got the ability to print color and want to give > processing the film a try!! :-) The Tetenal C41 press kit costs $17 and by my > calculations I can process 24 sheets of film with it. My local lab charges two > dollars a sheet. The best part is that total processing time including the was is > ten minutes!! I can do that. Is the Tetenal kit a rapid process? C41 is longer then 10 minutes usually. 3:15 just for the developer. Colour film developing is easy. It's boring but it's easy-) Nick : > Thanks for the replies. I just got the ability to print color and want to give : > processing the film a try!! :-) The Tetenal C41 press kit costs $17 and by my : > calculations I can process 24 sheets of film with it. My local lab charges two : > dollars a sheet. The best part is that total processing time including the was is : > ten minutes!! I can do that. : Is the Tetenal kit a rapid process? C41 is longer then 10 minutes usually. : 3:15 just for the developer. Colour film developing is easy. It's boring but : it's easy-) I just took a look at the instructions and the time I gave is for "fast" processing at 113 degrees which they don't recommend. At the recommended temperature of 100 degrees the process takes ~13 minutes. That includes the wash time. With my Jobo processor it doesn't even have to be boring since I can simply pour in the chemistry and walk away. :-) SignatureKeep working millions on welfare depend on you ------------------- fwp@deepthought.com |
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