MIR-10A 28mm f3.5 M42 Ultra Wide Angle lens for Zenit Sony Canon Nikon | eBay
M42 Screw Mount Lens to Fujifilm X-Series (FX) Mount Camera Body Pro Mount Adapter – Fotodiox, Inc. USA
M42 Wide Angle Lens - Etsy
Amazon.com : K&F Concept Lens Mount Adapter Compatible for Leica M42 Screw Mount Lens to M4/3 M43 Micro Four Thirds Mount Camera with Matting Varnish : Electronics
18mm Wide-Angle ProLens - ShiftCam Global Official
Best M42 prime lenses for $150-350. From Fisheye to Telephoto vintage lenses. - YouTube
Meike 8mm F2.8 Prime Manual Focus Ultra-wide Angle And Zero Distortion Lens For Panasonic Lumix/ Olympus Micro 4/3 M43 Cameras - Camera Lenses - AliExpress
Meike 8mm F2.8 Prime Manual Focus Ultra-wide Angle And Zero Distortion Lens For Panasonic Lumix/ Olympus Micro 4/3 M43 Cameras - Camera Lenses - AliExpress