Can You Make A Lens Parfocal Using A Speedbooster?
26:47
How to make a single focus anamorphic lens for $100
6:51
Metabones Speedbooster - Make All Your Camera Lenses Better
19:58
Speed Boosters Compared // Metabones BMPCC4K vs Viltrox EF-M2 II
11:06
REAL Cine Zoom Lenses FOR CHEAP!!! (Part 2) Pros and Cons
4:13
Parfocal vs Varifocal lenses | what's the difference and why does it matter?
8:15
How to GET INFINITY FOCUS on all LENS with any SPEED BOOSTER
11:47
Adapting Vintage Projector Lenses to Any Camera!
6:18