Metabones Speed Booster Posted by juliancamilo on January 14, 2013 04:19 pm 31 via www.metabones.com An adapter for mounting SLR lenses on mirrorless cameras that reduces the focal length of said lenses, and effectively increases their aperture. The news The theory A review What do you think? There are 31 Comments. Load 'Em Up. Show speed reading tips and settings Shortcuts to mastering the comment thread. Use wisely. C - Next Comment X - Mark as Read R - Reply Z - Mark Read & Next Shift + C - Previous Shift + A - Mark All Read Comment Settings Live comment alert: Hide it! Comments for this post are closed.