John Chennavasin wrote:
> No, you can't. The EOS cameras use the DX info on the canister to determine
> the number of exposures. This is why if you accidentally open the back, then
> you will need to rewind the film, as the counter becomes fooled.
I'm not so sure about that. My Elan II gets 25 complete frames on every roll of
24 exposure GA I put in it. On the rare occasion that I have opened the back
with the film inside, after I close it, the camera winds forward about three
frames and then displays "1" on the LCD. I suspect that it counts a
predetermined number of perforations after the back is closed, and calls that
frame 1. It then advances 8 perforations for each frame.
The film, as it comes from the factory, only has perforations along one edge for
the first few inches. If you place the end of the leader at the orange mark,
the perforations have not yet started at the IR sensor. If you were "rolling
your own" film, and cut it square at the leader end, I think the positioning
would not be as accurate.
>
>
> My experience shows that the 37th (and 38th) frames always end up being
> damaged anyways.
>
The Elan II seems to go to the end of the roll, or frame 36, whichever comes
first. My old manual Minolta would keep winding until the sprockets slipped
(and I got a double exposed last frame) or I decided to to try and squeeze one
more frame out of it. There were still some incomplete frames at the end.
That's never happened with the Elan II or EOS 5.
Geoff Doane
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