ARRIALEXA Mini

The ALEV III Super 35 sensor with large photosites. Most modes are windows read pixel for pixel; the 16:9 HD mode scales down for its high frame rates.

Sensor 28.25 × 18.17 mm (Super 35, 3:2), 3424 × 2202 photosites, 8.25 µm pitch, rolling shutter.

Drawn to the same scale on every camera page. Grey is the whole sensor, the coloured figures are the open mode.

Modes, full sensor to tightest crop

Records
Sensor area
Crop vs full frame
Top frame rate
Readout at 24 fps

Choosing a mode

4:3 is the one for 2× anamorphic: 2.8K 4:3 unsqueezes to about 2.66:1, cropped to 2.39:1.
For high speed, HD 16:9 keeps the Super 35 field of view up to 200 fps.

Every mode

Mode	Records	Sensor area	Crop vs FF	Top frame rate	Readout at 24 fps	Notes

≈ marks an estimate. * marks an uncertain readout: nobody has measured that mode on this camera, so the figure is worked out from a measured mode by line count, from a camera on the same sensor, or from the frame rate it reaches. Top frame rate is the highest the camera offers in that mode, in its best codec and on its fastest media; other codecs often stop lower. Readout is how long the sensor takes to scan one frame from top to bottom, which is what leans verticals on a fast pan. Under 10 ms is comfortable handheld; past about 16 ms fast movement starts to lean.

Frame rates from ARRI's ALEXA Mini specifications; those marked ≈ vary with licence and recording format. Modes and frame rates change with firmware, so check the current manual before a job depends on one. This camera is not on Dynamic range by camera yet.