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  1. #11
    David A. Goldfarb's Avatar
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    120 is on a thinner base, so that may be a factor.

    Quote Originally Posted by Dave Miller
    I suspect the emulsion on 120 film is formulated to give best results with earlier use. Manufacturers assume that it will be used quickly by professional or high use amateurs. On the other hand 35mm is formulated for a long shelf life as a priority.
    Of course, you can only get one Christmas on a roll of 120, but you can fit three Christmases on a roll of 35mm.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
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  2. #12
    GeoffHill's Avatar
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    Quote Originally Posted by tim_walls View Post
    I think it's highly unlikely (indeed, utterly implausible) that they manufacture a different emulsion for 120 than 35mm because 120 is 'more professional.'

    Fewer people buy 120. It sits on shelves longer. End of story.

    I have 4 types of ilford 120 film in my fridge (D100, D3200, Fp4 and Hp5) and they all have dates between Feb and July 2009. They are from 4 different suppilers. If the life of the 120 film is the same as the 35mm (about 4 years) ilford must have gone on a production fest about 2 years ago...

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