Forgive me if I'm wrong on this, but the Samyang/Rokinon lenses retain the aperture rings even on the EF mount versions, correct. Seems to me these lenses are a no brainer for cine style shooting on a budget. The whole set is half the price of one Compact prime. I would for sure get the 14, 35, 85. I have a 24 2.8 nikkor, so the only reason to switch is speed, I'll save that cash for now. There are lots of good 50's out there, I have nikon and pentax to chose from to see which I like better, but I don't know why they don't just make one for the sake of a set. They are also full frame glass, so not limited to only crop frame cameras.