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Convergent Design Gemini 4:4:4 Uncompressed Video Recorder

Convergent Design Gemini 4:4:4 Uncompressed Video Recorder

Convergent Design Gemini 4:4:4 Uncompressed Video Recorder Top View Front View Right-Side View Back View On F3 Camera In Hand Inside Case Case View

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Product Highlights

  • Records 12-Bit RGB 4:4:4 Uncompressed
  • (2) SDI Inputs (3G-SDI/Dual-Link HD-SDI)
  • Unlocks Sony F3 4:4:4 Output
  • 1080p23.98/25 Recording
  • Built-In 5" Touchscreen LCD Monitor
  • S-Log Recording Support
  • Record Footage with Burned-In LUTs
  • Supports FCP/Avid/Smoke/Flame/Premiere
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What item is right for you?

Ask our Experts!

The Convergent Design Gemini 4:4:4 Uncompressed Video Recorder can record 12-bit RGB 4:4:4 uncompressed from cameras that output 12-bit, cameras like the Canon C500. Otherwise, Gemini records 10-bit uncompressed 4:4:4 video as DPX files to up to two Convergent Design 1.8" SSDs. The Gemini features dual SDI inputs and outputs and an HDMI output.

Weighing only a pound and recording the highest-quality HD formats to readily available removable media, the Gemini recorder is an ideal companion to compact cameras that feature 4:4:4 SDI output, such as the Sony PMW-F3.

That's not to say the Gemini isn't suitable for other large-sensor, small-form-factor cameras (such as the Panasonic AG-AF100) that feature 8-bit, 4:2:2 HD-SDI output; if nothing else, the advantages of bypassing the camera's compression still apply here. And there are professional-level workflow options like recording footage to both SSDs (for instant backup: planned future support – not currently supported) that serve well any serious digital cinema production.

But many of the features that set apart the Gemini are those that take advantage of 3G / dual-link SDI transmission. There's 4:4:4 recording of 1080p25 and 1080p23.98 for cinematic frame-rate capture. (Other formats as well as playback and recording functions will be supported with future firmware releases – not included.)

Another key feature that makes Gemini 4:4:4 a true tool for digital cinematography is its support for Sony's S-Log gamma function, which is available for the PMW-F3 via a firmware upgrade. When applied to footage, the S-Log look-up table (LUT) provides additional stops of latitude for a wide dynamic range, setting up recorded DPX files beautifully for any digital intermediate (DI) post-production workflow. You can simultaneously record S-Log video to one SSD (for online editing) and the same footage with other burned-in LUTs to the second SSD (for easier & faster creation of offline proxies).

Transferring footage to an editing system is simple. The Gemini 4:4:4 comes with an SSD-to-eSATA transfer station, so you can easily drag files to your Mac or PC and start editing either uncompressed files or with any editing codec in many popular NLE applications (currently the software supports Avid, Final Cut Pro, Premiere, Smoke, Flame, and DaVinci).

Built-in 5" touchscreen LCD monitor for both live monitoring and playback, as well as menu navigation
Records up to 12-bit RGB 4:4:4 uncompressed as DPX files.
Support for S-Log and Log-C (Log-C via future firmware – not included) with user-programmable 1D LUTs. LUTs can be applied to either SDI output
Record to two drives in sequence (future support for simultaneous recording, i.e., instant backup – not included)
Video can be recorded with or without burned-in LUTs, on individual drive basis
Playback controls include Play and Pause (future functions planned – not included)
Touch-sensitive menu system with user-defined presets and customizable level of on-screen data
Mic input & headphone outputs (3.5mm)
Milled aluminum case
Supported Standards HD-SDI: SMPTE 292M
HD-SDI Dual-Link: SMPTE 372M
Planned future support for 3G-SDI: 424M
Video Formats 1080p @ 23.98/25 fps
Planned future support for 1080p24/29.97/30/50.59.94/60, 720p50/59.94/60, 2048 x 1080p23.98/24
Recording Format Video: Up to 12-Bit RGB 4:4:4 recording to DPX file format
Audio: WAV
Video I/O 4x BNC, (2 input, 2 output, with individual power-down options)
1x HDMI Type C (output)
Audio I/O Digital: HD-SDI embedded 4 channels, uncompressed, 24-bit, 48 kHz (16 channels in future firmware – not included)
Analog: 3.5mm jacks, mic or consumer line level input; headphone or consumer line level output
Recording Media 2x slots for 1.8" Solid State Drives (not included), hot-swappable, 256/512 GB sizes
SSD Performance: 260 MBytes/s Write, 415 MBytes/s Read, 6 Gb/s SATA Interface
Recording Time With 2x 256 GB SSDs: 1080p24 (4:2:2): 66 minutes
1080p24 (4:4:4): 44 minutes
1080p25 (4:4:4): 43 minutes
LCD Monitor 5" LCD, 800 cd/m2, 800 x (RGB) x 480 pixels, 24-bit, 900:1 true contrast, 170° viewing angle (IPS technology), color calibrated at factory
Compatible NLE Systems Avid, Final Cut Pro, Premiere, Smoke, Flame, DaVinci
Timecode HD-SDI Embedded (SMPTE RP-188)
Power Requirements 5-19V DC
Power Consumption 8-15W active / 1.5W power-save mode
Start-Up Time 2 seconds
Material Case: Milled aluminum
Operating Temperature -4 to 122°F (-20 to 50°C)
Storage Temperature -40 to 158°F (-40 to 70°C)
Dimensions (HxWxD) 1.1 x 4.7 x 5.4" (27 x 120 x 138mm)
Weight 1 lb (450 g)
Convergent Design Gemini 4:4:4 Uncompressed Video Recorder
  • eSATA Transfer Station
  • HD-SDI Cables
  • HDMI Cable
  • Hot Shoe with 1/4"-20 Ball Mount
  • Universal AC Power Supply
  • 4-Pin XLR Power Cable
  • Custom-Fitted Hard Plastic Case
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    Expand your recorder's capabilities with software upgrades.

    Convergent Design - Gemini RAW C500 4K Option
    • You Pay: $2,495.00
    Electronic Download ?
    This product must be downloaded from the Manufacturer's website. You should receive the license code to complete your order within 1-3 business days. Orders placed on Weekends or Holidays are processed the next business day.

    Video Cables

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    Connect your recorder to a camera or an external monitor.

    Canare - 2' L-3CFW RG59 HD-SDI Coaxial Cable with Male BNCs (Black)
    • You Pay: $18.49

    Cases & Coverings

    Carry, store and protect, with quick access to your recorder.

    Porta Brace - PB-2300F Hard Case with Foam Interior (Blue)
    • Reg. Price: $68.57
    • Instant Savings: -$8.58
    • You Pay: $59.99
    • Limited supply at this price

    Power Accessories

    Don't get caught without power with external battery options.

    Convergent Design - 12VAC Universal Power Supply for Gemini 4:4:4 Uncompressed Recorder
    • Price: $119.00
    Special Order ?
    This is a Special order item. Est. arrival at B&H is 2-4 weeks (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.
    PayPal Orders
    PayPal orders will be charged when the order is placed.
    International Orders
    For international orders, credit cards will be charged at time you place your order.

    Replacement Item.


    Increase your shooting convenience and flexibility with the aid of additional mounts.

    Pearstone - 4.2" (10.7cm) Articulating Arm
    • You Pay: $34.95
    Pearstone - 8.3" (21.1cm) Articulating Arm
    • You Pay: $39.95
    View all Accessories
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