kingsley244
Member
I tried to remove the accesory (flash) coupler on my Canon 7 by turning the knurled knob (tried in both directions) but it won't move. Is it jammed ?
Canon LTM Canon 7 - How to remove accessory coupler
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Canon M39 M39 screw mount bodies/lenses
John Shriver
Well-known
That would be the most likely explanation. It's a bayonet mount there. Or maybe the fixed part on the camera is rotating? Can you watch in there?
kingsley244
Member
Thanks, John. I looked at it again. There is no movement of the attachment on the camera side. Is turning the knob the way to remove the coupler ? Is it a clockwise or anticlockwise turn ?
John Shriver
Well-known
Almost certainly anti-clockwise. Maybe you have to push in first, then hold while turning?
I can look this evening at the Canon Flash V I thought I could use on my 7s. (But the 7s doesn't have the matching ring.)
I can look this evening at the Canon Flash V I thought I could use on my 7s. (But the 7s doesn't have the matching ring.)
harry01562
Registered semi-lurker
Don't have my flash coupler handy, and haven't used it in a long time. As I recall, grip the ring that turn, push toward the camera, and turn counter-clockwise. Just takes a bit of a turn, and it should pop free. The accessory coupler attaches the same way, and I can check that tonight, if you still have a problem.
Harry
Harry
John Shriver
Well-known
Looking at my Canon Flash V, it turns counter-clockwise to lock on, clockwise to release. Counter-intuitive. But the coupler could be made the other way. No sign of any "catch" that needs the lock ring to be pushed towards the camera.
The tabs on the mount on the camera are on the sides.
Certainly, nobody with a brain would have glued the darned thing on, since you can't rewind the film.
In desperation, you could start taking the coupler apart using the four screws visible on the end.
The tabs on the mount on the camera are on the sides.
Certainly, nobody with a brain would have glued the darned thing on, since you can't rewind the film.
In desperation, you could start taking the coupler apart using the four screws visible on the end.
kingsley244
Member
Did it !!
I applied some WD40 along the knob's axle and after some quite strong force and tense moments, it moved and came off the camera. I thought that it was a threaded mount but it turned out to be a bayonet mount like John said. It was the knob that was stuck to its axle and not the mount.
Thanks, guys.
I applied some WD40 along the knob's axle and after some quite strong force and tense moments, it moved and came off the camera. I thought that it was a threaded mount but it turned out to be a bayonet mount like John said. It was the knob that was stuck to its axle and not the mount.
Thanks, guys.
