Amazon.com : Metabones Nikon G Lens to Fuji G-Mount GFX Adapter : Electronics
Viltrox M43 Lens Adapter Focal Reducer Speed Booster Turbo Aperture 0.71x For Nikon Lens To M4/3 Camera Panasonic Olympus - Lens Adapter - AliExpress
Metabones Speed Booster Nikon G Lens to Blackmagic Cinema Camera (.64x — Glazer's Camera Inc
Adapter Focal Reducer Speedbooster for M42 Screw Lens to Panasonic Olympus M4/3 | eBay
M42-Micro 4/3 Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
K&F Concept adapter for M42 42mm Screw mount lens to Nikon 1 camera V1 J1 6936069202212 | eBay
Amazon.com : VILTROX NF-E 0.71x Focal Length Reducer Speed Booster Mount Adapter Ring Lens Adapter for Nikon F Mount Lens to Sony E Mount Camera : Electronics
M42-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
M42-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
Amazon.com : Pixco Lens Kit Speed Booster Focal Reducer Lens Adapter Suit for M42 Lens to Sony E Mount NEX Camera+39mm-42mm Step-up Metal Filter Adapter Ring 39mm Lens to 42mm Accessory(M42-NEX) :
M42-Canon EOS M Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
Metabones®
Amazon.com : Pixco Lens Kit Speed Booster Focal Reducer Lens Adapter Suit for M42 F Lens to Canon EOS M Camera+39mm-42mm Step-up Metal Filter Adapter Ring / 39mm Lens to 42mm Accessory (
M42-fx Focal Reducer Speed Booster Turbo Adapter For M42 Lens To Fujifilm Fx Xt4 Xh1 Xe3/xa7/xa5/xt3 Xt30 Xt200 Xpro2 Camera - Lens Adapter - AliExpress
Amazon.com : Pixco Pro Focusing Infinity Speed Booster Focal Reducer with Optical Glass Adapter Lens Turbo M42 Mount Lens to Micro Four Thirds M4/3 : Electronics
M42-Sony E Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
Amazon.com : Metabones MB_SPNFG-M43-BM3 Nikon G to Micro Four Thirds Speed Booster 0.71x Black Lens : Electronics
Amazon.com : VILTROX 0.71x Speed Booster Lens Mount Adapter Compatible with Nikon F-Mount to M4/3 m43 Camera, D or G-Type Lens to Micro Four Thirds Camera, Manual Infinity Focus (NF-M43X) : Electronics
M42-Micro 4/3 Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
M42-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
Pixco Speed Booster Focal Reducer Lens Adapter Suit For M42 Lens to Suit for Canon EOS M DropShipping|speed booster|focal reducerpixco speed booster - AliExpress
Zhongyi Lens Turbo II 0.726x Focal Reducer Speed Booster Adapter for M – Roxsen.com