Zacuto Gratical HD HD-SDI/HDMI OLED Viewfinder

HD-SDI/HDMI Viewfinder


The highest specification Zacuto OLED viewfinder with HD-SDI and HDMI inputs, 24 bit depth RGB (16.7m colours) and 10:000:1 contrast ratio.


Suitable for small and large cameras alike, such as Canon C300 Mk II, FS-7 to RED EPIC-W, Alexa Mini plus any other cameras with HD-SDI or HDMI inputs.  The precision optics with built-in diopter makes this a very high quality viewfinder and not to be confused with the cheaper Gratical X or Gratical Eye viewfinders, which don’t have an on-board battery mount.

Supplied with mount for ARRI Pro set, battery kit & D-tap powering cable for on camera use.

Please note that if you are using your own camera which is not fitted with the ARRI Pro set, which our brackets are designed to fit with, then please make the client contact aware of this and request a Noga arm to be supplied, as this is not included as standard.


  • Anti-fog disc
  • auto-closing eyecup
  • 1280-720 16:9 display with 5.4m pixels
  • 10,000:1 contrast ratio
  • 24 bit colour depth (16.7m colours)
  • programmable LUT
  • HDSDI and HDMI inputs
  • False Colour
  • Waveform and Vectorscope Display
  • Test Patterns
  • Audio Metering
  • Frame rates from 23.98p to 60p including 24PsF

Additionally, the Gratical HD EVF has an HD-SDI Loop Out to feed the camera signal to other HD-SDI devices with its built-in cross converter with independent LUT on output stream.

Screen Size 0.61” diagonal
Resolution Full Display 1280×1024, 16×9 1280×720 HD
Contrast Ratio 10,000:1
Refresh Rate 60Hz
Colour Depth 24 bit RGB
Luminance 120-250 cd/m^2
Pixel Info 2687.21 PPI
5.4 million pixels
16.7 million colors
Colour Processor RGB, saturation, brightness, contrast
Test Pattern (colour bars & Macbeth)
Programmable buttons Four
Frame Rates 23.98p, 23.98PsF, 24p, 24PsF, 25p, 25PsF, 29.97PsF, 50i, 50p, 59.94i, 60i, 60p
HDMI 1.4b compliant, resolutions up to 1080p/60
HD-SDI Resolutions up to 1080p/60, loop out
Compatible with LP-E6 battery (7.8V 1800mAH LiON)
Battery run time ~ 4 hours constant run
Custom Scaling/User Presets
Zebra Stripes – Customize width, color, thresholds
Waveform (3D)
Histogram (RGB, Luma)
Audio Meters
LUT import and editing
Red Line Peaking (multi-color)
False Colour
Frame Store Feature
HDMI output
SDI output
Cross Conversion – HDMI to HD-SDI, independent LUT on output stream.
Zacuto Gratical HD Viewfinder
ARRI VAB-1 Viewfinder Attachment inc. 2x 140mm rods K2.0001297
ARRI Viewfinder Bracket MVB-1 K2.0006140
ARRI EVF Attachment For Zacuto Gratical K2.0008624
2x Vision Cable BNC-BNC 70cm
Vision Cable BNC-BNC 50cm
Charger Canon LC-E6E
3x Canon LP-E6 7.2V Battery
Power Cable Figure 8
Peli Case Zacuto Gratical HD
Dummy Battery for Small HD Gratical LP-E6
*** (Optional) Noga arm for non-ARRI Pro Kit ***

Peli Case: 42 x 34 x 18cm 4.25kg

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