![Amazon.com : EF-R3 Pro Lens Mount Adapter 0.71x Speed Booster Auto Focus Lens Adapter Ring for EOS EF/EF-S Lens to EOS R Mount Cameras C70 and RED Komodo EOS R R3 R5 Amazon.com : EF-R3 Pro Lens Mount Adapter 0.71x Speed Booster Auto Focus Lens Adapter Ring for EOS EF/EF-S Lens to EOS R Mount Cameras C70 and RED Komodo EOS R R3 R5](https://m.media-amazon.com/images/I/51sRE6OZiZL._AC_UF894,1000_QL80_.jpg)
Amazon.com : EF-R3 Pro Lens Mount Adapter 0.71x Speed Booster Auto Focus Lens Adapter Ring for EOS EF/EF-S Lens to EOS R Mount Cameras C70 and RED Komodo EOS R R3 R5
![FD-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories FD-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories](http://pixco.com.cn/cdn/shop/products/2_a5b8b31c-9f20-4fe7-bf8d-ba73d6843e8d.jpg?v=1613496274)
FD-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
![Metabones T Speed Booster ULTRA II 0.71x (Fifth Generation) - Canon EF to Sony E-Mount Adapter | Lens / Mount Adapters | Lenses / Accessories | Buy | AbelCine Metabones T Speed Booster ULTRA II 0.71x (Fifth Generation) - Canon EF to Sony E-Mount Adapter | Lens / Mount Adapters | Lenses / Accessories | Buy | AbelCine](https://www.abelcine.com/uploads/e/7/c/4/6/6/e7c466d2c90fb25f767a36f89ad81e51/metabones-speed-booster-ultraii_v1.large.jpg)
Metabones T Speed Booster ULTRA II 0.71x (Fifth Generation) - Canon EF to Sony E-Mount Adapter | Lens / Mount Adapters | Lenses / Accessories | Buy | AbelCine
![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 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](https://m.media-amazon.com/images/I/71ht+o79UXL.jpg)
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
![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 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](https://www.imagingworldrentals.com/cdn/shop/products/1634913331_1668138_large.jpg?v=1646086112)
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 T Speed Booster Ultra 0.71x Adapter for Canon Full-Frame EF Mount Lens to Micro Four Third Metabones T Speed Booster Ultra 0.71x Adapter for Canon Full-Frame EF Mount Lens to Micro Four Third](https://www.samys.com/imagesproc/L2ltYWdlcy9wcm9kdWN0L21haW4vUy0wNDE3ODd4NjAwXzMuanBn_H_SH480_MW480.jpg)
Metabones T Speed Booster Ultra 0.71x Adapter for Canon Full-Frame EF Mount Lens to Micro Four Third
![Amazon.com : Metabones T Speed Booster XL 0.64x Adapter for Canon EF Lens to BMPCC4K Camera : Electronics Amazon.com : Metabones T Speed Booster XL 0.64x Adapter for Canon EF Lens to BMPCC4K Camera : Electronics](https://m.media-amazon.com/images/I/513PZOm0JqL.jpg)
Amazon.com : Metabones T Speed Booster XL 0.64x Adapter for Canon EF Lens to BMPCC4K Camera : Electronics
![Metabones Nikon G to Micro Four Thirds Mount Speed Booster | Lens Adapters | Metabones at Unique Photo Metabones Nikon G to Micro Four Thirds Mount Speed Booster | Lens Adapters | Metabones at Unique Photo](https://www.uniquephoto.com/resources/uniquephoto/images/products/processed/MBA1005.zoom.a.jpg)
Metabones Nikon G to Micro Four Thirds Mount Speed Booster | Lens Adapters | Metabones at Unique Photo
![Metabones Speed Booster "S" Version 0.71x for Canon EF-Mount Lens to MFT Body (MB_SPEF-m43-BM2) with Support Foot at KEH Camera Metabones Speed Booster "S" Version 0.71x for Canon EF-Mount Lens to MFT Body (MB_SPEF-m43-BM2) with Support Foot at KEH Camera](https://www.keh.com/media/catalog/product/3/8/381861-2590274_01.jpg)
Metabones Speed Booster "S" Version 0.71x for Canon EF-Mount Lens to MFT Body (MB_SPEF-m43-BM2) with Support Foot at KEH Camera
![Viltrox M43 Lens Adapter Focal Reducer Speed Booster Turbo Aperture 0.71x For Nikon Lens To M4/3 Camera Panasonic Olympus - Lens Adapter - AliExpress Viltrox M43 Lens Adapter Focal Reducer Speed Booster Turbo Aperture 0.71x For Nikon Lens To M4/3 Camera Panasonic Olympus - Lens Adapter - AliExpress](https://ae01.alicdn.com/kf/H20be5430d0054d4eb64971f4dbf9b53d4/Viltrox-M43-Lens-Adapter-Focal-Reducer-Speed-Booster-Turbo-Aperture-0-71x-for-Nikon-Lens-to.jpg)