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atelier@hostophoto.fr - Film camera workshop near Marseille and Aix-en-Provence

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 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.

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.

A Canon A-1 stuck on Bulb mode — photograph 1
A Canon A-1 stuck on Bulb mode — photograph 2
A Canon A-1 stuck on Bulb mode — photograph 3
A Canon A-1 stuck on Bulb mode — photograph 4
A Canon A-1 stuck on Bulb mode — photograph 5
A Canon A-1 stuck on Bulb mode — photograph 6