double exposure with R3A

[msvadi]

I discovered a double exposure on a film I just developed. It's actually turned out not bad to my taste, but how that could happen?

 

[tetrisattack]

Maybe the rewind button was depressed at some point before making that exposure?

 

[msvadi]

do you mean that the camera does not advance film if the rewind button was depressed?

Maybe the rewind button was depressed at some point before making that exposure?

 

[dkapp]

do you mean that the camera does not advance film if the rewind button was depressed?

I just tried this on my R3A since there was no film in it. There was no way I could make the camera do a double exposure. Pressing the rewind button, or even pressing & holding the rewind button still advances the film.

Dave

 

[msvadi]

so, the only possibility would be that I accidentally pressed the rewind button, and rewinded the film one frame back ...

I just tried this on my R3A since there was no film in it. There was no way I could make the camera do a double exposure. Pressing the rewind button, or even pressing & holding the rewind button still advances the film.

Dave

 

[tetrisattack]

I mean that, when you press the rewind button, the camera disengages the ratchet mechanism that only allows the film to advance. It's designed to right itself after you take a blank shot, and often times will right itself mid-stroke.

I can do it with an R2A, no film. Pop the back, press the rewind button, put resistance on the film advance teeth. It will stay in place, at least for a partial stroke, while you advance the frame. In some cases, I can get almost a full stroke before it starts to spin.

So, not accurate enough to get a proper double exposure, but a very real possibility, if you accidentally pushed the rewind button in.

 

[dkapp]

so, the only possibility would be that I accidentally pressed the rewind button, and rewinded the film one frame back ...

I'm saying that it was impossible for me to duplicate your double exposure pushing the rewind button. I even pushed in and held the button down while advancing to the next frame and it would still advance the film correctly.

I have no idea how this happened. I'd say watch it, and if the problem continues, send it in for repair.

Dave

 

[L.P.]

I have had double exposure problems recently too with the R3A (not a full strke, half only), never happened with the R2. Though i cannot remember what went wrong at the time, i may have played with the rewind button.. good to know not to do that again..

thanks all for the info.
Loic

 

[pvdhaar]

You didn't do a mid-roll rewind and later reload, did you? I frequently swap films (b&w vs. colour or 100 vs 400 iso) halfway and back again. I do write the film counter value on the canister though with a felt marker, but when reloading always skip a frame further to avoid overlap..

 

[yarinkel]

Had this on my Bessa R too recently.

No idea how it happened, but a serie of 3 pictures in a row were double-exposed. I noticed something was wrong when the counter went over 38 and I could still advance...

I may have pressed the rewind button by mistake.

There are not real double exposures, i.e., one picture cover last half of an photo and first half of the next one, if you know what I mean.

Did happen only once so.