Samyang + Metabones? Or not?

[dashek]

Samyang 50mm T1.5 AS UMC VDSLR is a qute nice lens. What to say. But what about if it connected thru Metabones SpeedBooster Ultra?
Of course it will be brighter. But what else? What about sharpness and other aspects?

I would like to use it with FS700. I have already Metabones with Nikon G mount.

I dont know that to buy. Which option will be better. Samyang with Nikon mount + Speedbooster or native E Mount?

 

[Samuel H]

I ran these tests with my first-gen speedbooster and vintage Leica-R lenses.

Summary: it was just as sharp as the non-boosted lens, but you get to close the iris by one stop and retain the same brightness and DoF, which means in the end it's actually sharper.