Do You Actually Need a Cine Lens?

Same camera. Same light. Same stop. The only thing I changed is the lens. A $2,150 cine prime against a $1,200 photo zoom, both on my Blackmagic PYXIS 12K. So if you've already spent real money on a camera, do you actually need a cine lens? I shot 16 matched pairs, at home and out in the desert at golden hour, and went round by round: sharpness, contrast, color, depth and handling. The sharpness round is the one I had backwards. And at the end I give you my pick for every kind of job. 0:00 Same camera, different glass 0:49 The contenders 1:44 The rules 2:36 Round 1: Sharpness 4:14 Round 2: Contrast 5:42 Round 3: Color 6:29 Round 4: Depth 7:44 Round 5: Handling 9:49 The look dial 10:38 The verdict 11:36 What should I test next? THE GEAR Camera: Blackmagic PYXIS 12K (BRAW, ISO 800, 180° shutter) Cine lens: DZOFilm Arles 35mm T1.4 (PL), about $2,150 Photo lens: LUMIX S 24-105mm F4 Macro O.I.S., about $1,200 Adapter: Meike PL to L-mount drop-in filter adapter, about $250 Prices are US street prices as of October 2026. HOW I TESTED Camera locked on a tripod, both lenses at 35mm and the same marked stop (usually f/4 against T4; stopped down together in hard sun), white balance set by hand, and the same color transform on both. Two pairs are f/4 against T1.4 on purpose, for the depth round. The waveform and color swatches are measured from the footage itself. Which lens should I put in front of this camera next? Tell me in the comments.