![Amazon.com : Metabones Speed Booster Ultra 0.71x Adapter for Canon EF Lens to Sony E Mount T Speed Booster : Electronics Amazon.com : Metabones Speed Booster Ultra 0.71x Adapter for Canon EF Lens to Sony E Mount T Speed Booster : Electronics](https://m.media-amazon.com/images/I/91vqDINv+OL.jpg)
Amazon.com : Metabones Speed Booster Ultra 0.71x Adapter for Canon EF Lens to Sony E Mount T Speed Booster : Electronics
![Metabones Speed Booster adapter gives lenses an extra f/stop and nearly full frame focal lengths on APS-C sensors - Newsshooter Metabones Speed Booster adapter gives lenses an extra f/stop and nearly full frame focal lengths on APS-C sensors - Newsshooter](https://www.newsshooter.com/wp-content/uploads/2013/01/metabones-speed-booster-600x404.jpg)
Metabones Speed Booster adapter gives lenses an extra f/stop and nearly full frame focal lengths on APS-C sensors - Newsshooter
![EDIT: Now with new "Bokeh Circles" tests....An adaptor which claims to make your lens, faster, wider and better! This is NOT an April Fool's! | Philip Bloom- Blog EDIT: Now with new "Bokeh Circles" tests....An adaptor which claims to make your lens, faster, wider and better! This is NOT an April Fool's! | Philip Bloom- Blog](https://staging.philipbloom.net/wp-content/uploads/2013/01/Speed-Booster-comparison.jpg)
EDIT: Now with new "Bokeh Circles" tests....An adaptor which claims to make your lens, faster, wider and better! This is NOT an April Fool's! | Philip Bloom- Blog
![Amazon.com : VILTROX EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5 Amazon.com : VILTROX EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5](https://m.media-amazon.com/images/I/717w8uWCpHL.jpg)
Amazon.com : VILTROX EF-M2II 0.71x Speed Booster, EF to Micro 4/3 Focal Reducer Booster Adapter Auto-Focus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM-1 EM-1 E-M1X E-M1 iii E-M5
![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)