Alexa Mini

Camera Overview
Complementing the ALEXA range:
Compact, lightweight and self-contained, the ARRI ALEXA Mini is a versatile additional tool in the ALEXA camera range. Crews will find that the ALEXA Mini perfectly complements their ALEXA shooting kit, eliminating the complications of working with third-party cameras for specialized shots and keeping everything within a single system that is trusted all over the world.

Strength and agility through state-of-the-art materials :
To maintain ARRI’s famously rugged build quality in a small and lightweight camera, a number of unique design solutions have been incorporated. These include highly integrated and sealed electronics, a lightweight carbon housing and a solid titanium PL mount that connects directly with the new internal sensor mount – also made of titanium – to ensure a super-stable flange focal distance, even when using large lenses. Nimble in use and hardy on set, the ALEXA Mini is a go-anywhere tool, easy to transport in backpacks or as carry-on luggage.

Greater efficiency through integrated functions

An integrated lens motor controller allows new active lens motors to be connected directly to the titanium PL mount, so focus, iris and zoom settings can be controlled from ARRI hand units without an additional external box. Further operational settings can be made remotely when working with the ARRI WCU-4 hand unit.

Cost-saving camera and lens metadata

Integrated ARRI Lens Data System (LDS) technology brings the added value of frame‑accurate metadata about focus, iris and zoom settings. With these lens settings and exact depth‑of‑field displayed live on wireless hand units, precise adjustments can be made during a shot. The data also allows lens mapping to pre‑marked focus rings and reduces the time and expense involved in achieving complex visual effects in post.

Unsurpassed overall image quality

Like the ARRI AMIRA, the ALEXA Mini can record 4K UHD ProRes images, facilitating real-time 4K UHD output and simple pipelines for high-resolution deliverables. More important than this, however, is the fact that the Mini and all other ARRI cameras with the ALEV III sensor offer unrivalled overall image quality by focusing not just on spatial resolution, but also on other image quality parameters such as dynamic range.

Leverage the full power of the sensor

Two ALEXA Mini license upgrades are available, allowing users to get the most out of the camera’s 4:3 ALEV III sensor. The 4:3 License Key enables ALEXA Mini to record ProRes in 4:3, 4:3 cropped or 16:9 anamorphic and to de-squeeze both the viewfinder image and HD-SDI signal. The ARRIRAW License Key enables the camera to record 2.8K 16:9 ARRIRAW both internally and to an external recorder. Open Gate ARRIRAW recording is possible with cameras that have both license keys installed.

Camera type 35 format film-style digital camera with lightweight and compact carbon body, 4:3/16:9 switchable active sensor area, support for ARRI MVF-1 viewfinder, built-in remote control capabilities via ARRI Electronic Control System and Wi-Fi, support for cforce motors, built-in motorized ND filters, interchangable lens mounts and ARRI Lens Data System
Dimensions Length: 185 mm/7.3"
Width: 125 mm/4.9"
Height: 140 mm/5.5" 
(camera body with PL lens mount)
Weight ~ 2.3 kg/5 lbs (camera body with titanium PL lens mount)
Sensor 35 mm format ARRI ALEV III CMOS with Bayer pattern color filter array
Photo sites
(with surround view)
16:9 ProRes HD 2880x1620
16:9 ProRes 2K 2867x1613
16:9 ProRes 3.2K 3200x1800
16:9 ProRes 4K UHD 3200x1800
4:3 ProRes 2.8K 2880x2160 *
6:5 ProRes De-squeezed to 2K 2560x2145 *
8:9 ProRes De-squeezed to HD 1920x2160 *
16:9 ARRIRAW 2.8K 2880x2160 *
Open Gate ARRIRAW 3.4K 3414x2198 *
Shutter Electronic shutter, 5.0° to 356.0°
Exposure latitude 14+ stops over the entire sensitivity range from EI 160 to EI 3200 
as measured with the ARRI Dynamic Range Test Chart (DRTC-1)
Exposure index EI 800 base sensitivity
Filters Built-in motorized ND filters 0.6, 1.2, 2.1
Lens mounts Titanium PL mount with L-Bus connector and LDS
EF mount
PL mount with Hirose connector and LDS
B4 mount with Hirose connector
Recording media CFast 2.0 memory cards
Recording formats 16:9 ProRes HD (1920 x 1080)
16:9 ProRes 2K (2048 x 1152)
16:9 ProRes 3.2K (3200 x 1800)
16:9 ProRes 4K UHD (3840 x 2160)
4:3 ProRes 2.8K (2880 x 2160) *
6:5 ProRes De-squeezed to 2K (2048 x 858) *
8:9 ProRes De-squeezed to HD (1920 x 1080) *
16:9 ARRIRAW 2.8K (2880 x 1620) *
Open Gate ARRIRAW 3.4K (3414 x 2198) *
(The pixel count in brackets shows the number of pixels in the recorded file.)
Recording codec ProRes 422, 422 HQ, 4444, 4444 XQ, ARRIRAW *
Recording frame rates
Recording Format Maximum Frame Rate in fps (1)
Sensor Mode Recording File Type Recording Resolution (2) Recording File Setting Internal Recording External Recorder
CFast 2.0 128 GB Codex
16:9 ProRes HD 422 / 422 HQ 200 -
4444 200 -
4444 XQ 120 -
2K 422 / 422 HQ 200 -
4444 200 -
4444 XQ 120 -
3.2K 422 / 422 HQ 60 -
4444 60 -
4444 XQ 30 -
UHD 422 / 422 HQ 60 -
4444 60 -
4444 XQ 30 -
ARRIRAW* 2.8K - 30 120
4:3 ProRes* 2.8K 422 / 422 HQ 55 -
4444 55 -
4444 XQ 45 -
6:5** ProRes* De-squeezed to 2K 422 / 422 HQ 150 -
4444 150 -
4444 XQ 120 -
8:9*** ProRes* De-squeezed to HD 422 / 422 HQ 150 -
4444 150 -
4444 XQ 120 -
Open Gate ARRIRAW* 3.4K - 30 60

* available in a later SUP ** 4:3 cropped *** Center crop from anamorphic (1) Minimum frame rate is always 0.75 fps (2) The „recording resolution“ determines the number of horizontal pixels that will be recorded (the number of vertical pixels is dependent on the recording file type and sensor mode)

Color output Rec 709, custom look or Log C
Look control Import of custom 3D LUT, ASC CDL parameter (slope, offset, power, saturation)
Adjustable image parameters Knee, gamma, saturation, black gamma, saturation by hue
Focus and exposure control Peaking, zebra, false color
White balance Manual and auto white balance
Sound level < 20 dB(A) at standard frame rates
Environmental -20° C to +45° C (-4° F to +113° F) @ 95% humidity max, non-condensing
Splash and dust-proof through sealed electronics
Viewfinder Multi Viewfinder MVF-1 (OLED and LCD ) with flip-out LCD screen 
and military-grade connector to camera
Control interface Soft buttons and OSD on SDI output, 
integration of Transvideo StarliteHD touch interface
ARRI lens motor control Built-in radio interface for ARRI lens control L-Bus
motor output for daisy-chainable cforce lens control motors
Wi-Fi remote control Built-in Wi-Fi interface and web-based remote control from phones,
tablets and laptops
Custom control Optional GPIO interface for integration with custom control interfaces
Power input Lemo 8-pin, 10.5-34 V DC
Video outputs 2x HD-SDI out 1.5G and 3G: uncompressed HD video with embedded audio
and metadata, SDI-6G interface to external CODEX recorder *
Inputs SDI-Genlock (optional activation through ARRI Service),
timecode (in and output)
Other interfaces USB 2.0 (for usersets, looks etc.)
Ethernet
EXT accessory interface w. RS pin