7.5mm f2.8 Mark II Fisheye

aperture_

Opens at f/2.8 and closes to f/16. An iris of 7 blades.

focal_

Fixed at 7.5mm. On the format it covers it frames like 12mm on full frame.

mount_

E-mount, 18mm from flange to sensor.

focus_

Manual focus; no motor of its own. Goes out wearing a 0.8 module gear ring. 100° of throw from close focus to infinity.

coverage_

Throws a 28.4mm image circle. Covers APS-C, Four Thirds, Type 1, Type 1/1.28, and Type 1/2.55. Misses VistaVision and Full Frame.

squeeze_

Spherical: delivers the gate it covers as it takes it, 1.5 to 1.