Arri Alexa Mini LF
Arri Alexa Mini LF
Combining the compact size and low weight of the popular ALEXA Mini with the large-format ALEXA LF sensor, ALEXA Mini LF brings exciting new creative possibilities to ARRI’s large-format camera system.
Optimized for large-format lenses, the LPL lens mount fitted to ALEXA LF and ALEXA Mini LF cameras accepts ARRI Signature Primes, ARRI Rental DNA LF and 65 format optics, and third-party LPL lenses. The PL-to-LPL adapter, which attaches securely to the LPL lens mount without tools, offers backwards compatibility with all PL mount lenses, be they Super 35 or full frame. LDS-2 or /i lens metadata is accessible via the LPL mount, and LDS-1 or /i via the PL-to-LPL adapter. ARRI’s Frame Line and Lens Illumination Tool, available in the Learn & Help/Tools section of the ARRI website, illustrates how much of the large-format sensor is covered by a given lens.
Other manufacturers, such as Panavision and Vantage, offer proprietary lens mounts for the ALEXA LF and ALEXA Mini LF cameras, to support their own lens ranges. Cinematographers therefore have an almost unlimited lens choice when shooting with ARRI large-format cameras.
Product Highlights:
Three internal, motorized large-format FSND filters: ND 0.6, 1.2 and 1.8
New dedicated, regulated 12 V and 24 V accessory power outputs
New SYNC IN and improved AUDIO connectors
Two built-in microphones
Six user buttons on camera’s left side
One LOCK button each for camera and viewfinder
Additional external WiFi antenna
Easier access to media, VF and TC connectors
Same sensor and recording formats as ALEXA LF
Compatible with LPL and PL mount lenses, Super 35 and full frame
Supports all anamorphic de-squeeze ratios
Compatible with almost all ALEXA Mini accessories
Compatible with ARRI and CMotion wireless remote systems
Works with 12 V and 24 V on-board batteries (~65 W power draw)
Technical Specs:
Dimensions:
Length: 185 mm/7.3"
Width: 125 mm/4.9"
Height: 140 mm/5.5"
(camera body with PL lens mount)
Click here for dimensional drawings
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(A)
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
Click here for a drawing with details about the recording areas, surround views and framelines
Recording Codec: ProRes 4444XQ, 4444, 422 (HQ), 422, 422(LT), MXF/ARRIRAW
Recording Frame Rates:
16:9
ProRes HD 0.75 - 200 fps
ProRes S16 HD 0.75 - 200 fps
ProRes 2K 0.75 - 200 fps
ProRes 3.2K 0.75 - 60 fps
ProRes UHD 0.75 - 60 fps
MFX/ARRIRAW 16:9 2.8K 0.75 - 48 fps
4:3
ProRes 4:3 2.8K 0.75 - 50 fps
6:5*
ProRes 2:39:1 2K Ana. 0.75 - 120 fps
8:9**
ProRes HD Ana. 0.75 - 120 fps
Open Gate
MFX/ARRIRAW 3.4K Open Gate 0.75 - 30 fps
* 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)
Click here for a detailed table of frame rates
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 user sets, looks etc.)
Ethernet for service and web remote control
EXT accessory interface w. RS pin and unregulated power output (outputs battery voltage)
