304: Interference Weave

Shot of the side of a plastic film developing spool; backlit and turned so both sides of concentric rings create interference patterns by crossing each other.
Looks a bit like a basket, too.

Settings: f/4, 1/180, ISO 100, 58mm Helios-44M M42, 77mm extension, 1/4 flash(bounced off steel bowl behind subject,) tripod.

302: Optical Occlusion

Settings: f/5.6, 1/2, ISO 100, 50mm Cosinon M42, 51mm extension, fluorescent lamp on white card (behind subject,) tripod, varimagni finder.

270: Patterns On Glass

Settings: f/4, 1.3s, ISO 100, P-FA 50mm.

268: Skin, Scored

Settings: f/16, 1/4, ISO 100, 58mm Helios-44-2 M42, 19mm extension, 1/4 flash, black velvet, tripod. Cropped square.

267: Yellow Lines

I'm used to a fixed focal length lens, but a fixed focus lens is something I'm just not used to using with an SLR. It takes me back to the days of little plastic 110 and 135 compacts, except with a better viewfinder for starters.

Like the last time, I used electrical tape to fix a lens to the camera... Bad practice! Don't do this at home unless you expect things to fall out now and again.
I really need one of those double threaded M42-M39 step-down rings. Much better than tape.

Settings: f/4.5, 1/320, ISO 100, 50mm Paterson 1:4.5 M39, M42-PK adapter.

230: Half and Half

Settings: f/4, 1/5, ISO 100, 50mm Cosinon M42, 26mm extension, halogen light, tripod.

180: Ink Digit Contours

Settings: f/4, 1/180, ISO 100, 50mm Cosinon M42, 45mm extension, 1/4 flash, white card, tripod. Applied light sharpening, and cropped to about 50% of area.

168: Buckwheat Columns

Settings: f/11, 1/3, ISO 100, 50mm Cosinon M42, 77mm extension, 1/4 flash, tripod.