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Zacuto Gratical HD Micro-OLED EVF


Pro Video


Product Code: Z-GHD

The Gratical HD Micro-OLED Electronic Viewfinder uses an extremely powerful FPGA dual core processor and the latest Micro-OLED display to provide a hugely expanded contrast range. The Micro-OLED display supports high pixel density with unparalleled resolution, true blacks, gamma and contrast range with 5.4 million pixels on a 0.61” diagonal screen no bigger than the size of your thumbnail. 

Attach the Gratical HD with the optional Axis Mini as part of the Zacuto Next Generation Recoil Rig (not included). 


Features (Gratical HD):

  • Two HDMI and two SDI ports with cross conversion from HDMI to SDI.
  • Weather resistant covers that prevents moisture or debris from getting in open ports.
  • Internal field of view that is just the right size, so that the image is large, but not too large for your eyes to view.
  • Built in -1 to +4 diopter range and Zacuto’s latest anti-fog coating formula.
  • Auto-closing eyecup door prevents sunburn display automatically without any action by the operator.
  • Physical connections include both a ¼ 20 screw hole underneath the EVF and a rosette on the side.


Specifications (Gratical HD):

Micro OLED Display


Screen Dimension 15.5mm / 0.61” (Diagonal) 
Contrast Ratio  10,000:1 
Color Depth  RGB: 24-Bit 
Pixel Info  2687.21 PPI, 5.4 Million Pixels, 16.7 Million Colors 
Resolution  Full Display: 1280 x 1024, HD: 1280 x 720 
Refresh Rate  60 Hz 
Luminance  120 - 250 Nit 
Connections HDMI  1.4B Compliant
Resolutions up to 1080P/60
Loop Out


HD-SDI  Resolutions up to 1080P/60
Loop Out 
Cross Conversion  HDMI to HD-SDI
Independent LUT on output stream 
Video Processing Features
Custom Scaling/User Presets
Red Line Peaking  
Waveform (3D)  
Color Processor  RGB, Saturation, Brightness, Contrast 
Histogram (RGB, Luma)  
False Color  
Frame Store Feature  
Audio Meters  
Test Pattern (Color Bars & Macbeth)  
LUT Import and Creation  
Eight Programmable Buttons  
Customize Width, Color, Thresholds  
Frame Rates 23.98p, 23.98PsF, 24p, 24PsF, 25p, 25PsF, 29.97p, 29.97PsF, 30p, 30PsF, 50i, 50p, 59.94i, 60i, 60p
Power Voltage Input  6-28V 
Compatible with LP-E6 battery 
(7.8V 1800mAH LiON)
Run Time – 4 Hours Constant Run



Please note: The Zacuto Next Generation Recoil Rig, Axis Mini, Z-Drive, Tornado and camera shown in the images are for illustration purposes only and are sold separately.  


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