Zacuto Gratical Eye HD-SDI/HDMI OLED Viewfinder

HD-SDI/HDMI Viewfinder


The lightest 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 and other cameras with HD-SDI or HDMI inputs.


The precision optics with built-in diopter makes this a very high quality viewfinder.  Extremely lightweight, there is no room for an on-board battery clip, so D-tap power only.

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 Dimension 0.61” diagonal
Resolution Full Display 1280×1024 16×9 1280×720 HD
Contrast Ratio 10,000:1
Colour Depth 24 bit RGB
Luminance 120-250 cd/m^2
Pixel Info 2687.21 PPI 5.4 million pixels
16.7 million Colours
Refresh Rate 60Hz
Frame Rates 23.98p, 23.98PsF, 24p, 24PsF, 25p, 25PsF, 29.97p, 29.97PsF, 30p, 30PsF, 50i, 50p, 59.94p, 60i, 60p
Colour Processor RGB, saturation, brightness, contrast
Test Pattern colour bars & Macbeth
Voltage Input 12-16.8V
HD-SDI Input Resolutions up to 1080p/60
Custom Scaling/User Presets
Colour Processor (RGB, saturation, brightness, contrast)
Zebra Stripes (Customize width, colour, thresholds)
Histogram (RGB, Luma)
Audio Meters
LUT import & create
Red Line peaking (any colour)
False Colour
Zacuto Gratical Eye OLED Viewfinder
ARRI VAB-1 Viewfinder Attachment inc. 2x 140mm rods K2.0001297
ARRI EVF Attachment For Zacuto Gratical K2.0008624
Zacuto Cable Loom BNC/D-Tap to BNC/2pin Lemo
ARRI Viewfinder Bracket MVB-1 K2.0006140
Peli Case Zacuto Gratical
Hawkwoods Battery BP-75UX 14.4V Double D-Tap
*** (Optional) Enter BP-60U Battery Kit *** (£15 pd each)
*** (Optional) Noga arm for non-ARRI Pro Kit ***

Peli Case: 35 x 30 x 15cm  2.95kg

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