Gearhead

I have a Pentax Spotmatic SLR sitting on a shelf with a bunch of other cameras and assorted lenses. And as I was looking at it and playing around with it I realized that there was an unexposed roll of Cinestill 800 Tungsten loaded in it. I'm thinking that I should take it downtown after dark and do some nighttime photography with it.

Here's the conundrum: which lens should I use? I only have 3 M42 mount lenses and they're all fantastic. There's the Voigtländer Color-Ultron 50mm f/1.8, the Super Takumar 55mm f/1.8 and a Helios M42 55mm f/1.8. All very similar, all very good.

I think I'll go with the Voitländer, simply because it's the one I've used the least. This should be fun