Amazon.com : VILTROX EF-EOS M2 Speed Booster Lens Adapter, 0.71x Auto-Focus EF-M Lens Adapter Ring Lens Converter Control Ring Compatible with Canon EF to m50 m200 m6 m5 m50 ii m6 ii :
Metabones Canon EF Lens to RF-Mount T CINE Speed Booster Ultra 0.71x Adapter MB_SPEF-EFR-BT2
Midwest Photo Metabones Canon EF Lens to BMPCC4K Camera T Speed Booster XL 0.71x Adapter
Viltrox EF-E II Speed Booster Lens Adapter for Canon EOS EF to Sony A9 A7 A7RII | eBay
Viltrox Ef-eos M2 Ef-m Lens Adapter 0.71x Focal Reducer Speed Booster Adapter For Canon Ef Lens To Eos M Camera M6 M200 M5 M50 - Lens Adapter - AliExpress
Metabones Speed Booster Ultra 0.71x Adapter MB_SPPL-M43-BT1 B&H
Viltrox Ef-m2ii Speed Booster Adapter Focal Reducer Auto-focus 0.71x For Canon Ef Mount Lens To Panasonic Olympus M43 Camera - Lens Adapter - AliExpress
Amazon.com : VILTROX EF-EOS M2 Speed Booster 0.71x Canon EF Lens to EF-M Mount Speedbooster for Canon m50 ii m6 ii m200 m50 m6 m5 : Electronics
What is a Speed Booster ? | Zebra Zone
Viltrox EF-E II Lens Adapter Reducer Speed Booster for Canon EF to Sony E Mount | eBay
Metabones®
Viltrox EF-R3 0.71 Speed Booster Adapter for Canon EF to Canon RF-Moun – Rent in NYC at The Imaging World Camera Rentals in Brooklyn
Metabones Speed Booster Ultra 0.71x Adapter MB_SPOM-M43-BM3 B&H
Viltrox M43 Lens Adapter Focal Reducer Speed Booster Turbo Aperture 0.71x For Nikon Lens To M4/3 Camera Panasonic Olympus - Lens Adapter - AliExpress
Canon has released a 0.71x EF to RF speed booster adapter - DIY Photography
Amazon.com : Metabones T Speed Booster Ultra 0.71x Adapter for Canon EF Lens to BMPCC4K Camera : Electronics
Metabones T Speed Booster ULTRA 0.71x Adapter for Canon EF to EF-M Mount (EOS M) Camera - Walmart.com
Metabones T CINE Speed Booster XL 0.64x Adapter, Canon EF Lens to BMPCC4K Camera MB_SPEF-M43-BTB
Metabones Speed Booster adapter gives lenses an extra f/stop and nearly full frame focal lengths on APS-C sensors - Newsshooter
Metabones Speed Booster Ultra 0.71x Adapter MBSPNFG-NZ-BM1 B&H
Amazon.com : Metabones Canon EF Lens to Sony E Mount T Speed Booster Ultra 0.71x II : Electronics
