You toggle it on and o
ff
by tapping on the
Black Frame Calibration
icon (see
the illustration on the top left). If there is no blue dot by the icon, the IQ4 is
using
Prerecorded
, while the blue dot indicate the use of a traditional black
frame calibration.
You can also enable it in the menu by selecting
File Settings > Black Ref. >
Prerecorded
.
If you cannot use the Prerecorded option - this is the case if you are using the
IQ4 100MP Trichromatic - you will need to capture a black frame calibration
after each image. This cannot be done fully automatically when the IQ4 is
mounted on a technical camera, since the IQ4 has no way of determining
whether light is hitting the sensor or not. So when a black frame calibration is
needed, the IQ4 will prompt you to cover the lens during the black frame
calibration capture.
Enable Antiflickering
When using the Electronic Shutter, there are certain shutter speed values that
do not work well with light sources flickering at either 50Hz or 60Hz. You can
enable this feature by going to the
IQ4 Menu
and selecting
IQ Settings >
Antiflickering
. Then select either
50Hz
or
60Hz
.
Be aware that the fastest available shutter speed will be capped when using
Electronic Shutter in combination with the Antiflickering feature. If you have
selected
50Hz
, the fastest possible shutter speed will be 1/100 second, while
60Hz
sets the limit to 1/125 second.
Please note that Antiflickering will not be in a
ff
ect if you are using P or Av
mode on the XF Camera.
Using Wake-up cables on the IQ4
When using a mechanical shutter on the Technical Camera lens, please ensure
that Electronic Shutter (ES) is set to
O
ff
the IQ4 in the menu system under
Camera > Electronic Shutter
. When operating the IQ4 in ES mode, wake-up
cables are not required.
Using the Multiport to PC-sync cable
1. Mount the IQ4 on the Technical Camera.
2. Connect the
Multiport to PC-sync cable
(part number 50300298) from
12-pin multiport on the IQ4 to the PC-sync connector on the Copal shutter, or
to the flash connector on the Schneider Kreuznach, Rodenstock or Sinar
electronic shutter system.
3. If you are using a flash system, connect it to the flash sync connector on the
IQ4.
4. Select the Camera Controls on the IQ4, then press on the Capture button on
the IQ4 screen to wake up the back.
5. Trigger the mechanical shutter on the lens, preferably by using a shutter
release cable.
Using the Multi Connector to Minijack adapter cable
1. Mount the IQ4 on the Technical Camera.
2. Connect one end of the
Wake up Cable for Phase One one-shot backs
(part number: 50300131) to the flash-sync port on the lens’ mechanical shutter
and the other end to the new
Multi Connector to Minijack adapter cable
(Part
number: 50300306). Then connect the sync cable to the 12-pin multi-
connector port on the IQ4.
3. If you are using a flash system, connect it to the flash sync connector on the
IQ4.
4. Once you are ready to capture, push the button on the Wake-Up cable to
alert the IQ4 to get the sensor ready for the capture.
5. Trigger the mechanical shutter on the lens, preferably by using a shutter
release cable.
Note that if the time span between pushing the Wake-Up button and the
shutter release is too long, the capture will be abandoned and the IQ4 will
show you a warning.
99
Electronic Shutter (ES)
99
XF IQ4 Camera System Manual |
