Respooling 70mm into 120 rolls

[gr82bart]

OK, so if one had a roll of 70mm film, how would one go about respooling it into 120 rolls? Assuming one had the plastic spools and some used paper backings.

Regards, Art.

 

[ajuk]

Are they the same size?

 

[David A. Goldfarb]

I don't think so. Isn't 70mm wider than 120?

 

[Photo Engineer]

120 film support is exactly 62mm in width, as measured by micrometer. This is 2.4 inches.

70mm film support is exactly 70mm in width with a picture area of (surprise) ~62mm.

This was measured in inches and metric with a dual scale micrometer just now in my lab with both films.

PE

 

[Kobin]

Maybe something like the film cutter from the link below (cutting 120 film for 127 respool) would work:

http://www.cosmonet.org/camera/pico_film_e.htm

 

[glennfromwy]

You have to cut it down to use it as 120. I made a trimmer for that. Doesn't work worth a damn. 70mm is the right width for 116/616, though. It's not hard to wind up with the backing paper. The only reason I fool with it at all is because I got 100 feet free.