A Canon A-1 stuck on Bulb mode
A quick repair for a fairly rare fault. The camera shows only B mode in the viewfinder, regardless of the speed selected on the dial.

A quick repair for a fairly rare fault. The camera shows only B mode in the viewfinder, regardless of the speed selected on the dial.
The release cycle stops halfway: the mirror stays raised partway through the sequence and the second curtain does not close. The reason is a broken fork-shaped contact under the shutter-speed dial.
I open the camera and replace it: quick and effective. This fault can also cause other symptoms, such as only one of the 2 AV or TV modes working.
Marketed by Canon between and 1985, the Canon A-1 is a single-lens reflex camera.
It was the first camera in the world to feature a built-in digital, rather than analog, computer.
To repair the part, the contact fork can simply be glued back onto the dial. I prefer to use screws to make sure it will not move again.






