Adaptarian

Belomo KO-120 120/2.1 converted to M42 with focusing implemented. "Petzval" design. Samples taken with Sony A7.
On auction now - www.ebay.com/itm/158177397385

Auctions ending this weekend:

Leitz SUMMICRON R 50/2 | Leica R - www.ebay.com/itm/157745431286

Kilfitt Makro KILAR D 40/2.8 | M42 - www.ebay.com/itm/157745581729

VIVITAR 35/2.8 (Tokina) | M42 - www.ebay.com/itm/157745616851

ŁZK EDAR 100/2.8 | M42 - www.ebay.com/itm/157745433377

Carl Zeiss FLEKTOGON 12.5/2.8 | Pentaflex AK16 - www.ebay.com/itm/157745438387

Good luck with bidding!

ŁZK EDAR 100/2.8 converted to M42 with focusing.
Triplet design a'la Trioplan and bubbly bokeh rendering.
Auction is here - www.ebay.com/itm/157711096572

MAMIYA/SEKOR 55/1.4 M42, looks like radioactive version made by Tomioka.
Samples taken with Sony A7.
On auction now - www.ebay.com/itm/157710966931

This week's auctions:

MAMIYA/SEKOR 55/1.4 (Tomioka) | M42 - www.ebay.com/itm/157675068560

Meopta MEOSTIGMAT 50/1 | Sony E - www.ebay.com/itm/157674922180

HELIOS 44M-5 58/2 | M42 - www.ebay.com/itm/157674952840

BeLOMO TRIPLET 78/2.8 | M42 - www.ebay.com/itm/157674925869

Carl Zeiss FLEKTOGON 12.5/2.8 | Pentaflex AK16 - www.ebay.com/itm/157675075645