J-( on Spotmatic SPF

[dmccardle]

As the title says I have a Pentax Spotmatic SPF. I just acquired a Jupiter 9. This is my first non-Takumar lens with this camera, also my first preset lens. Needless to say....I have some learning to do. The preset thing is straightforward so far, but I do have a metering question. I've asked this on a few "more Pentax oriented" boards, but I still am not getting a clear answer.

When metering with this lens I need to use the meter switch since the lens has no protrusion to activate the meter, yes?

When using the switch, do I leave it in the up (on) position to release the shutter? Or do I press the switch up, meter, push switch down, then shoot?

Thanks in advance

 

[zuikologist]

Leave in the on position if taking the shot, it will switch itself off after exposure.

If you are just metering the scene, switch off after metering.