Arri Alexa Mini

Technical specifications

Camera type

35 mm format film-style digital camera with lightweight and compact carbon body, 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, interchangeable lens mounts and ARRI Lens Data System as well as Lens Data Archive.

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

Active photo sites (with surround view)

S16 HD: 1600 x 900 (1760 x 980)
HD: 2880 x 1620 (3168 x 1772)
2K: 2868 x 1612 (3154 x 1764)
3.2K: 3200 x 1800 (3424 x 1926)
4K UHD: 3200 x 1800 (3424 x 1926)
4:3 2.8K: 2880 x 2160 (3168 x 2160)
2.39:1 2K Ana.: 2560 x 2145 (3424 x 2202)
HD Ana.: 1920 x 2160 (3424 x 2202)
Open Gate 3.4K: 3424 x 2202 (3424 x 2202)

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

ProRes:
S16 HD: 1920 x 1080 (up-sampled from 1600 x 900)
HD: 1920 x 1080
2K Cine 16:9: 2048 x 1152
3.2K: 3200 x 1800
4K UHD: 3840 x 2160 (up-sampled from 3.2K)
4:3 2.8K: 2880 x 2160 (padded to 2944 x 2160)

Anamorphic ProRes formats with 2x in-camera de-squeeze:
HD Anamorphic: 1920 x 1080*
2.39:1 2K Anamorphic: 2048 x 858*

MXF/ARRIRAW (in-camera recording to MXF-wrapped ARRIRAW files):
2.8K 16:9: 2880 x 1620**
Open Gate: 3424 x 2202***

MXF/ARRIRAW Open Gate modes with active image area matching 4:3 ProRes modes:
4:3 2.8K (OG 3.4K): 2880 x 2160 (Recording in Open Gate 3.4K)***
2.39:1 Ana. (OG 3.4K): 2560 x 2145 (Recording in Open Gate 3.4K)***
16:9 HD Ana. (OG 3.4K): 1920 x 2160 (Recording in Open Gate 3.4K)***

*) requires ALEXA Mini 4:3 License Key
**) requires ALEXA Mini ARRIRAW License Key
***) requires both ALEXA Mini 4:3 and ARRIRAW Licenses Keys

Recording codec

ProRes 4444XQ, 4444, 422 (HQ), 422, 422(LT), MXF/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
CFast 2.0 128 GB
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
MFX/ARRIRAW 16:9 2.8K 48
4:3 ProRes 4:3 2.8K 422 / 422 HQ
4444 50
4444 XQ
6:5* ProRes 2:39:1 2K Ana. 422 / 422 HQ 120
4444 120
4444 XQ 120
8:9** ProRes HD Ana. 422 / 422 HQ
4444 120
4444 XQ
Open Gate MFX/ARRIRAW 3.4K Open Gate 30

*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, waveform

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
Camera Control Panel (CCP-1) LCD control panel with option to daisy-chain MVF-1

Control interface

Soft buttons and OSD on SDI output, integration of Transvideo Starlite HD5-ARRI touch interface WCU-4 hand-unit with control over operational parameters.

ARRI lens motor control

Built-in white coded radio interface for ARRI lens and camera remote control LBUS motor output for daisy-chainable cforce lens control motors
Lens Data Archive

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, 6G SDI in UHD and 3.2K recording modes.

Inputs

SDI-Genlock (optional activation through ARRI Service), timecode (in and output)

Other interfaces

USB 2.0 (for usersets, looks etc.)
Ethernet for service and web remote control
EXT accessory interface w. RS pin and unregulated power output (outputs battery voltage)

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