Pentax Spotmatic F

The Spotmatic F does light metering at full aperture with dedicated lenses (see the Takumar 50mm page). Another novelty compared to previous models, the meter is switched on by the presence of light, the button used to switch is now used to change to real aperture metering with standard M42 lenses (you should always leave a cap on the lens when the camera is not in use).
Bought for cheap because the lightmeter was out of order, I had to replace the galvanometer.
The 1.4/50mm lens was purchased by Christophe in January 2011 with another Spotmatic F.