Metabones Canon EF Lens to Canon EF-M Mount T Speed Booster ULTRA 0.71x
![](https://www.dailycameranews.com/wp-content/uploads/2019/05/mb_spef-efm-bt1_01s-800x600.jpg)
The new Metabones EF-EOS M Speed Booster ULTRA 0.71x makes full-frame Canon EF-mount lenses one stop faster, 0.71x wider and…
The new Metabones EF-EOS M Speed Booster ULTRA 0.71x makes full-frame Canon EF-mount lenses one stop faster, 0.71x wider and…