Please, I need your fogged ULF film

[sanking]

Barry, wouldn't there be a standard somewhere, surely the film manufacturers size to something common

There are noi ANSI standards for sizes beyond 8X10, with three exceptions: 10X12, 11X14 and 14X17. For all other formats film makers must assume that the stated size of the format is the actual size of the opening in the film holder. That is, an 8X20 format should have an actual opening of a full eight inches X twenty inches. I have seen a few older holders that have openings slightly larger than nominal, but that is not the convention today.

Film is cut just shy of the size of the format. For example, 12X20 film is actually 11 15/16 X 19 15/16, 7X7 is 6 15/16 X 7 15/16. If it is cut by mistake to the actual size of the format chances are you won't be able to load it.

Most sheet film has a thickness of 0.007". So a good appoximation of sheet film for any format could be made by cutting sheets of 0.007" polyesteer to 1/16 less than the nominal size of the format.

Sandy

[barryjyoung]

Barry, wouldn't there be a standard somewhere, surely the film manufacturers size to something common

Hi Ray:

Different films are different thicknesses

[barryjyoung]

Most sheet film has a thickness of 0.007". So a good appoximation of sheet film for any format could be made by cutting sheets of 0.007" polyesteer to 1/16 less than the nominal size of the format.

Sandy

Thank you Sandy, I guess I should have just asked you.

[barryjyoung]

Most sheet film has a thickness of 0.007". So a good appoximation of sheet film for any format could be made by cutting sheets of 0.007" polyesteer to 1/16 less than the nominal size of the format.

Sandy

Hi Sandy:

What is the thickest film you have encountered?

Thank you.

[sanking]

Hi Sandy:

What is the thickest film you have encountered?

Thank you.

Barry,

Just at 0.008".

Could be that there is some thicker but I have not encountered it.

Sandy

[barryjyoung]

Barry,

Just at 0.008".

Could be that there is some thicker but I have not encountered it.

Sandy

Thank you Sandy, very much

[barryjyoung]

Hello People:

Today I received the first film in the mail. An anonymous sender with no return address sent me some film from UK. Thank you so much.

I took the film to work last night and measured it carefully. Here are the results.

10X12 Maco UP100 Plus
measured 9.950x11.950 inches by .0081 thick
This is .050 under in width and .050 under in length
5x12 J&C Classic 400
measured 4.935x11.920 inches by .0077 thick
This is .065 under in width and .080 under in length
5x12 Ilford HP5 Plus
measured 4.875 X 11.955 inches by .0077 thick
This is a .125 (1/8th inch) under in width and .045 under in length

So, to answer one respondents question about a standard,,,,there is apparently no meaningful quality control on the width of film. This is exactly why I wanted samples. I have noticed big differences in film width and length in my 4x5 film, so I assumed there would be something similar in ULF films.

Thanks to everyone participating in this study and especially to the sender in the UK.

[barryjyoung]

I can send you some 5x12" if you need them. Just PM me with your address.

Regards

Barry

ps I can also let you have a sheet of Maco 10x12"

Thanks for the films Barry, very interesting results. Please let me know if I can send you some money.

Thank so much.

[BarryWilkinson]

Thanks for the films Barry, very interesting results. Please let me know if I can send you some money.

Thank so much.

Glad they arrived safely. No money required, glad to be able to help.

Regards

Barry

[barryjyoung]

Sure, Barry.

I have a fair number of duds (I am embarassed to say ) in 8x10 and 7x17. I could probably muster up some old Tri-X, FP4, HP5, and Efke PL100 in 8x10 and FP4 and PL100 in 7x17. These would all be exposed/processed films.

Note that I live in Canada so shipping would be higher than from the US so you might want to wait for more replys to save yourself a buck or two.

PM if you're interested.

Good luck with this.

Hi Daniel:

I received the films today, thanks very much. I will get a money order out to you tomorrow morning. I really appreciate it.

Barry Young
Young Camera Company