Amazon.com : AUTO 3X TELECONVERTER M42 Screw MT W CASE : Electronics
Cheap Vintage M42 Manual Lenses for Fuji X Mirrorless Cameras – Roy Cruz Photo
Amazon.com : 2x TELECONVERTER for M42 Screw Mount W/CASE : Electronics
Amazon.com : K&F Concept Lens Mount Adapter Compatible with M42 Lens to NEX E-Mount Camera Compatible with Sony Alpha NEX-7 NEX-6 NEX-5N NEX-5 NEX-C3 NEX-3 : Electronics
Przykręcany obiektyw M42 do metalowego adaptera mocowania aparatu Canon RF, pierścień adaptera M42, pasuje do aparatu Canon EOS R/RP / R5 / R6 : Amazon.pl: Elektronika
Amazon.com : 2X Tele Converter for M42 SCREW MOUNT, New in Box : Electronics
M42 Lens Doubler for Pentax, Contax, Ricoh : Amazon.ca: Electronics
Amazon.com : Astromania Astronomical T2-Extension Tube Kit for Cameras and eyepieces - Length 8mm 15mm 20mm 40mm - M42x0.75 on Both Sides : Electronics
T do montażu na M42 adapter T2 obiektyw do nikon pierścień pośredniczący dla D7100 D810 D700 D800 D7000 D5200 D5100 D5300 D5000 - AliExpress