Why is it that you can still buy 120 film from any decent photographic shop and yet 620 is practically impossible to get hold of (the only place I know of is Photo Supplies UK)? As far as I can see it would have been logical to keep 620 in production and stop 120, since 620 fits in all 120 cameras (that I have seen) and yet 120 fits in hardly any 620 cameras.

