Zacuto Gratical EVF User manual

The Gratical HD/LT Micro-OLED Electronic Viewfinder
User Manual
www.zacuto.com
Bright. Sharp. Brilliant
GRATICAL EVF

2
GRATICAL EVF
Gratical Features ...........................................................................3-4
Included Components .....................................................................3
Battery Usage....................................................................................5
Power Sources...................................................................................5
SDI & HDMI Connections ................................................................6
Mounting Gratical to Axis Mini........................................................6
Operating Menus .............................................................................7
Display Calibration ...........................................................................8
LUTs....................................................................................................9
Color Bars........................................................................................10
Scopes .............................................................................................11
Overlays ..........................................................................................13
False Color ......................................................................................13
Focus Assist (Red Line)...................................................................14
Exposure Assist (Zebras) ...............................................................14
Frame Line.......................................................................................15
Menu Settings.................................................................................15
Meters..............................................................................................15
Pixel to Pixel....................................................................................16
DSLR Scaling ...................................................................................16
Anamorphic ....................................................................................17
Frame Store.....................................................................................17
Function Buttons ............................................................................18
Update.............................................................................................18
About...............................................................................................19
Table of Contents

3
GRATICAL EVF
Gratical Features
Included Components
3 AC Plug Adapters Li-ion Battery Charger Li-ion Battery LP-E6 Pack
1. BNC Covers
2. HDMI Covers
3. Focusing Ring
4. Arri 1/4”- 20 Rosette
5. USB Port
6. Power Button
7. SDI Out
8. SDI In
9. HDMI Out
10. HDMI In
11. Function Buttons
12. Joystick
13. Battery Release Button
14. LP-E6 Battery
15. Lens Door
16. 1/4”-20 EVF Mount
3
2
456
1

4
GRATICAL EVF
11 12
13 14 15
16
9 10
7 8

5
GRATICAL EVF
Insert the battery into the left side compartment of the Gratical. Slide to the right
until locked in place. To remove the battery press the release button and slide the battery
to the left of the case.
Connect male D-Tap
to power source.
PT-ZAC-E6
Slide Battery attachment
into the Gratical.
Note: Only use LP-E6
type batteries with the
Gratical. Doing otherwise
may damage the unit.
Battery Usage
To ensure full runtime charge
your battery before first use.
Using an External Power Source
Optional equipment includes an External Battery Attachment with D-Tap and a
compatible battery source.
Release Button

6
GRATICAL EVF
SDI and HDMI Connections
The Gratical HD includes two HDMI and two SDI ports with cross conversion from HDMI
to SDI. Weather resistant covers prevent moisture or debris from getting in open ports.
Mounting Gratical to Axis Mini
The recommended mounting accessory for the Gratical is the Axis Mini. This is mounted
to the Gratical using the rosette mount. Below is the configuration using the Gratical, Axis
Mini, and Recoil Handle for a Recoil Rig. 1/4”-20 rosettes are standard but M6 Rosettes
are available contact [email protected]
In InOut Out
15 mm Rod

7
GRATICAL EVF
MAIN MENU
DISPLAY CALIBRATION
LUTS
COLOR BARS
SCOPES
OVERLAYS
METERS
PIXEL TO PIXEL (ZOOM)
DSLR SCALING [Auto/Playback]
ANAMORPHIC [NORMAL]
FRAME STORE
FUNCTION BUTTONS
UPDATE
ABOUT
The menu screen reveals itself over the current video display to show real-time
updates of changes made. Menu will disappear after 30 seconds of inactivity.
1. To open menu press in joystick. Navigate menu
using up, down, left, right. Press in to select.
Left will return you to the previous menu or
make the menu disappear when on main menu.
Functions assigned to joystick directions while
the menu is off. Factory default listed below.
Up- User Assignable
Down- Battery
Left- User Assignable
Right- Red-Line Peaking
2. User assignable buttons. Factory default
listed below.
F1- Toggle all Scopes On/Off
F2- False Color
F3- Exposure Assist (Zebras)
F4- Pixel to Pixel Zoom
2 1
Operating Menus
F1 F2 F3 F4
Current Selection
(In Red)
Current Setting
Sub-Menu
Indicator
Vectorscope
Waveform
Histogram
SET

8
GRATICAL EVF
DISPLAY CALIBRATION
BRIGHTNESS
CONTRAST
SATURATION
RED
GREEN
BLUE
RGB
GAMMA
RESTORE DEFAULT
IMAGE FLIP
SELECT PRESET
STORE PRESET
9
0
12
8
0
0
0
1.00
OFF
Use these settings to adjust the calibration of the Micro OLED Display.
BRIGHTNESS: [-100 to 100]
CONTRAST: [-100 to 100]
RED: [-100 to 100]
GREEN: [-100 to 100]
BLUE: [-100 to 100]
RGB: [-100 to 100]
GAMMA: [0.2 to 2.6]
• Your settings may be saved and recalled with the SAVE PRESET
and RECALL PRESET functions.
• Select RESTORE DEFAULT to restore factory default settings.
Display Calibration

9
GRATICAL EVF
Import Custom LUT
• To import a custom LUT, insert a USB stick into the Gratical and select import custom
LUT from the LUT menu. Select the LUT you wish to import from the list of available
LUTs. Currently compatible with 1D LUTs (.look, .cube, .csm file types)
Select Preset EVF LUT
• To use a preset LUT for the Gratical, select a LUT from the list of available preset LUTs.
Select Custom EVF LUT
• To select a custom LUT, you must first import a LUT to the Gratical. Once you have im-
ported a custom LUT, select a LUT from the list available custom LUTs.
Select Preset SDI Out LUT
• To use a preset LUT for the SDI Out, select a LUT from the list available preset LUTs.
Select Custom SDI Out LUT
• To select a custom LUT, you must first import a LUT to the Gratical. Once you have
imported a custom LUT, select a LUT from the list available custom LUTs.
LUTs
LUTS
IMPORT CUSTOM LUT
SELECT PRESET EVF LUT
SELECT CUSTOM EVF LUT
(off)
SELECT PRESET SDI OUT LUT
SELECT CUSTOM SDI OUT LUT
(off)
PREVIOUS MENU

10
GRATICAL EVF
Color Bars
• The SMPTE HD, MACBETH, and BLUE ONLY features can be used to calibrate
your Gratical.
COLOR BARS
SMPTE HD
MACBETH
BLUE ONLY
PREVIOUS MENU
OFF
ON
OFF

11
GRATICAL EVF
SCOPES
EVF SCOPES
SDI OUT SCOPES
PREVIOUS MENU
The Gratical offers three different scopes: Histogram, Waveform, and Vectorscope.
Histogram
• (Luminance): The luma Histogram shows all luminance values in the image, from
black to white.
• (RGB):The RGB Histogram shows histogram analyses for each color, Red, Green,
Blue. This lets you compare the relative distribution of each color.
Waveform (Luminance):
• Shows exposure in IRE at a given location in the image, left to right.
Vectorscope (Saturation):
• Measures the chrominance in the image, including saturation and hue.
Histogram Waveform Vectorscope
Scopes

12
GRATICAL EVF
Scope Settings
• Each scope can be toggled
ON/OFF. All scopes off
defaults image to the center.
• Scopes can be displayed in
the Gratical and on a second
monitor by looping out the
SDI. To choose which scope
you wish to control, select
EVF Scopes or SDI
Out Scopes.
• LOCATION: Select to change
the location of the scope.
Scopes may be moved to
LEFT, CENTER, or
RIGHT positions.
• See Function Buttons
Section p18 to assign
to a function button.
EVF SCOPES
HISTOGRAM
LOCATION
TYPE
SCALE
WAVEFORM
LOCATION
VECTORSCOPE
LOCATION
PREVIOUS MENU
ON
LEFT
LUMA
LINEAR
OFF
CENTER
ON
RIGHT
EVF SCOPES
HISTOGRAM
LOCATION
TYPE
SCALE
WAVEFORM
LOCATION
VECTORSCOPE
LOCATION
PREVIOUS MENU
OFF
LEFT
LUMA
LINEAR
OFF
CENTER
OFF
RIGHT

13
GRATICAL EVF
0<0 IRE1 02 03 04 05 06 07 08 09 0 100 >101 IRE
PINK
GREEN
BLUE
FUCHSIA
YELLOW
RED
Overlays
False Color
• Select FALSE COLOR to see feature ON/OFF.
• Use False Color to aid in obtaining the correct exposure of your scene.
• The chart below may be used as a key to determine which area of your frame are
overexposed, underexposed, or exposed properly.
• Overexposed: Objects will be displayed RED.
• Properly Exposed: Objects will display in Pinks and Greens.
• Underexposed: Objects will display Blue to Dark Blue.
• See Function Buttons Section p18 to assign to a function button.
OVERLAYS
FALSE COLOR
FOCUS ASSIST
FOCUS ASSIST (ZEBRA)
FRAME LINE [NONE]
MENU SETTINGS
PREVIOUS MENU
ON

14
GRATICAL EVF
Exposure Assist
(Zebras)
• Select ENABLE to see
feature On/Off.
• Select the HIGH IRE LEVEL
to change the exposure
level at which the zebra
lines will appear. This
value must be higher than
the LOW IRE LEVEL value
or you will receive a Zebra
setting error.
• Select the HIGH COLOR
to change the color of the
HIGH IRE LEVEL zebra lines.
• Select the LOW IRE LEVEL
to change the exposure level
at which the zebra lines will appear.
• Select the LOW COLOR to change the color of the LOW IRE LEVEL zebra lines.
• See Function Buttons Section p18 to assign to a function button.
Focus Assist (Red-Line)
• Select RED-LINE ENABLE to
see feature On/Off.
• Select COLOR to change
the color of the focus
assist lines.
• Select LEVEL to change
the intensity of the focus
assist lines.
• See Function Buttons
Section p18 to assign
to a function button.
EXPOSURE ASSIST (ZEBRA)
ENABLE
HIGH IRE LEVEL
HIGH COLOR
LOW IRE LEVEL
LOW COLOR
STRIDE
WIDTH
ON
100
WHT
70
BLK
12
4
FOCUS ASSIST
RED-LINE ENABLE
COLOR
LEVEL
ON
RED
2

15
GRATICAL EVF
FRAME LINE
1.33:1 (4x3) **
1.66:1 (15x9)
1.78:1 (16x9)
1.85:1
2.35:1
2.66:1
CENTER CROSS
3x3 GRID
OFF
OFF
Frame Line
• Choose the frame lines and/or
action safe lines you wish to
overlay on the image.
Menu Settings
• Select MENU LOCATION to move
the menu to one of six locations.
Meters (Audio and Battery)
• Toggle the Gratical Meters
ON/OFF.
• Select BATTERY/ AUDIO LOCATION
to move the meters to one
of six locations.

16
GRATICAL EVF
PIXEL TO PIXEL (ZOOM)
ENABLE
CENTER
PAN RATE
ON
5
DSLR Scaling
• AUTO/PLAYBACK allows
the EVF to scale and format
the image by automatically
detecting the camera’s
output (Default)
• Choose CAMERA PRESETS
to activate an included
camera preset.
• When creating a user preset,
the ACTIVE VIDEO (Red Line)
represents what will be
shown full frame on the
screen while the
FRAME LINE (Green Line)
tells the Gratical where the
picture area of the recorded
video image will be.
• Creating a user preset may be useful if you are trying to view camera data on the screen
while it’s scaled.
DSLR SCALING
AUTO / PLAYBACK
CAMERA PRESETS
CREATE USER PRESET
RECALL USER PRESET
OVER/UNDERSCAN OVERSCAN
VIDEO FORMAT:
SHOW DSLR SCALING
ON
Pixel to Pixel
• Select ENABLE to see feature
On/Off. While ON, use the
joystick to scroll around
the image.
• Select CENTER to
re-center the picture
while zoomed in.
• Select PAN to change the
number of pixels at which
you will scroll while
zoomed in.
• See Function Buttons
Section p18 to assign
to a function button.

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GRATICAL EVF
Anamorphic
• Select the anamorphic
de-squeeze factor
corresponding to your lens.
Frame Store
• Toggle Show ON/OFF to
display the stored frame in
the selected memory bank.
If no frame has been stored
in the selected bank, a
warning message will
appear “Frame (X) has
not been stored!”
• Within SHOW STYLE you
may choose for the saved
frame to be overlaid as
OPAQUE or TRANSP
allowing you to match up
your live video with the
stored frame.
• Toggle the CAPTURE menu to ON and you will be promoted with a message “Press any Function
button to store frame...” Press a Function button on the side of the EVF and a frame from the
current video on screen will be stored to the next available memory bank.
• See Function Buttons Section p18 to assign to a function button.

18
GRATICAL EVF
Function Buttons
• The Gratical has eight function
buttons that can be assigned by
the user. These include the four
buttons (F1, F2, F3, F4) and the
four directions of the joystick
(UP, DOWN, LEFT RIGHT).
Function buttons come
preprogrammed but can be
changed at any time.
• To change the function assigned
to each button, select the function
button you wish to change.
From the subsequent menu,
choose the desired function
you wish to be assigned to
the function button. It can
now be activated by pressing the appropriate function button
on the side of the Gratical without the use of the menu system.
• Function buttons can only be used when the menu is not displayed.
Update
• To update your Gratical with
the latest firmware, first
format your USB thumb drive
to FAT32 for compatibility.
• Download the firmware update
from www.zacuto.com.
• Insert your USB drive into the
Gratical’s USB port, select
UPDATE from the menu and
select USB DRIVE. Select
START UPDATE and follow
the on screen instructions.
The current firmware version
can be confirmed in the
ABOUT menu.

19
GRATICAL EVF
About
•Choose ABOUT to view
the EVF firmware version
on your device.
•SYSTEM INFO is used for
developer and debugging.

20
GRATICAL EVF
• Do not allow sunlight to enter the Gratical. The light
can be magnified by the lens and potentially cause
damage to the Gratical screen.
• Make sure to close eyecup lens door when not using
to help prevent unwanted light from entering the EVF.
• Do not disassemble or modify the EVF, as this may
damage the product.
• Do not use batteries, power cords, or accessories that are not specified for use with this
product. Use only canon LP-E6 batteries or equivalent.
• Do not store the product in a dusty, humid or hot environment as damage may occur.
• When the product is mounted on a camera, do not lift or move the camera by grabbing
the product. This may cause damage to the product or the camera mount.
• This product is not waterproof. If the product is dropped in water, do not turn on the
unit. Contact Zacuto for service.
• Do not attempt to power another device by using the Gratical as a power source.
• To report bugs, features, and ideas please contact zacuto.
Gratical Precautions
For more support call us at 888-294-FILM
or email us at [email protected]