364: Blossoming Lemon

Settings: f/11 (approx,) 1/8, ISO 100, 58mm Helios-44-2 M42, 33mm extension, fluorescent lamp, black velvet, cable release, tripod. Slight tone curve / colour adjustments and crop.

363: Old Metal Parts

Settings: f/8, 1/180, ISO 100, 50mm Pentacon M42, 49mm extension, 1/4 flash (bounced,) white card, tripod. Tone curve adjustment, sharpen, slight rotate and crop.

359: Gold Sparkle

Settings: f/2.8, 1/180, ISO 200, 50mm Pentacon M42, 1mm extension (by adapter,) 1/4 flash (bounced.)

358: Cabbage Leaf Network

Settings: f/2.8, 1/10, ISO 800, 50mm Pentacon M42, 20mm extension. JPEG straight from camera.

357: Old-Fashioned Toast

Settings: f/1.8, 1/30, ISO 800, 50mm Pentacon M42.

356: Fairy-O-Lights

Settings: f/1.8, 1/5, ISO 800, 50mm Pentacon M42, 17mm extension.

353: CW-24 Test at f/16

This one is the f/16 version in a series of seven test photos I took for evaluating an old Tamron CW-24 24mm lens.

Settings: f/16, 1/2, ISO 100, 1mm extension (PK adapter,) fluorescent table lamp, black velvet, white card, cable release, tripod. Slight exposure adjustment to even out across the range of photos, sharpening set to 0.

352: Sponge Foam Structure

Settings: f/11, 1/180, ISO 100, 50mm Pentacon M42, 88mm extension, 1/4 flash (bounced,) cable release, tripod. Colour and tone curve adjustments, 100% centre crop.

351: DAIRY

Settings: f/11, 1/4, ISO 100, 50mm Pentacon M42, 19mm extension, LED torch, black velvet, cable release, tripod. Colour and tone curve adjustments, slight crop.

350: Misted Floret

Settings: f/8, 1/180, ISO 100, 50mm Pentacon M42, 51mm extension, 1/4 flash (bounced,) tripod.

349: Rainbow Sprout

Settings: f/11, 1/180, ISO 100, 51mm extension, 1/4 flash, white card, tripod. Colour and tone curve adjustments, slight crop.

347: Purple Peel

Close up, banana peel shows some tiny starchy clumps, but without a bit of adjustment it can look very flat and boring. Blue-Purple-Pink really seems to bring out its textures better.

Settings: f/16, 1/180, ISO 100, 58mm Helios-44-2 M42, 76mm extension, 1/4 flash (bounced,) foil reflector, tripod. Colour and tone curve adjustments, crop to square.

346: Sticky Cupcake

Settings: f/8 (approx,) 1/180, ISO 100, 58mm Helios-44-2 M42, 19mm extension, 1/4 flash (bounced,) cardboard, tripod. Tone curve adjustments, crop to 16:9.

341: Offshoot Curves

Very late update...
Another of a Jerusalem artichoke - but this is one of the new crop. This one was stored for a couple of days, and its skin now looks slightly shrivelled, while the tips of its branched-off new roots are starting to droop.
The added red tint was a post-processing afterthought, one that I simply considered fitting.

Settings: f/8, 1/180, ISO 100, 58mm Helios-44-2 M42, 45mm extension, 1/4 flash, black velvet, cable release, tripod. Colour and levels adjustments, slight crop.

340: Space-Time Ice Bubbles

I brought a plastic jug full of ice indoors from the garden. (As you do.) It was full of tiny frozen bubbles, in many shapes and sizes. I took various angles, with different lighting (lamp and flash,) and chose this shot because I thought it had simply the most interesting bubbles. The droplets contrast nicely with the streaks, suggesting a sense of movement.

Settings: f/8 (approx,) 1/8, ISO 100, 50mm Cosinon M42, 25mm extension, fluorescent lamp, black velvet, foil reflector, cable release, tripod. Colour and levels adjustment, square crop.

339: Ring Spine

Settings: f/10 (approx,) 1/180, ISO 100, 58mm Helios-44-2 M42, 9mm extension, 1/4 flash (bounced,) black velvet, cable release, tripod. Slight curves and colour adjustment, crop to 16:9.

338: Oven-Fresh Biscuits

Settings: f/4, 1/5, ISO 100, 58mm Helios-44-2 M42, 9mm extension, tungsten light, cable release, tripod. Slight curves adjustment and colour correction.

337: Future Compost

Settings: f/8, 1s, ISO 100, 50mm Cosinon M42, 17mm extension, tungsten light, cable release, tripod.

335: Mints on Pink

Settings: f/5.6, 1/180, ISO 100, 50mm Pentacon M42, 19mm extension, 1/4 flash, foil reflector, green paper, tripod. Colour & levels adjustments, crop.

334: Sugar Cavities

Not the dental sort, but featuring here on something liable to induce such problems if abused.
As expected, I couldn't resist seeing what the bubbles in this orange lollipop looked like close up. I stuck all the extension tubes I had (minus the loose one,) on a 50mm lens and propped the sticky lolly in front of a desk lamp.
The first couple of attempts were plagued by flare, so I cut a small hole in a piece of cardboard and stuck it behind the lolly to cut down on peripheral illumination. This way the only light I really needed was shining through the lolly.
The image looked a great deal more orange out of the camera; while I still liked this, I found that pulling the white balance nearly all the way down made for more varied, acid yellow-greenish tones. While unrealistic, I just find them more pleasing.

Settings: f/9.5, 1/1.7, ISO 100, 50mm Pentacon M42, 81mm extension, fluorescent lamp, card, tripod. Colour and levels adjustments.