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4.2 General Hardware Setup
Powering up the IQ2 back
After an IQ2 back is connected to a camera body, insert a battery and it will
automatically turn on. The back is switched on/o by pressing the power
button located below the IQ2 back display.
ISO Settings
The IQ280 back has an ISO spectrum from ISO 35-800. The IQ260 has a 50-
800 spectrum and the Achromatic back has a ISO range from 200-3200.
The default ISO setting for 50 for IQ280 and IQ260 models and 200 for the
Achromatic.
An ISO rating can be selected from the menu system (when untethered) or in
the Capture Tool in Capture One Pro software (when tethered).
Sensor+ technology, built into the Phase One IQ Series models, expands the
ISO range from 140 to 3200 at 20 megapixels resolution for the IQ280. The
IQ260 models have a Sensor+ ISO range from 200 to 3200 at 15 megapixels
resolution.
Power Management and Shutter Latency
The IQ2 back’s CCD needs to be constantly cleared of data from the previous
capture before the next exposure can be taken. This process requires some
power consumption. The default setting is Normal Latency, which should
remain unchanged under all ‘normal’ shooting scenarios. Only change
the setting to Zero Latency if you work on technical cameras, large format
cameras or certain manual cameras in special situations.
Double Exposure Protection
It is not possible to accidentally double expose an image by capturing one
shot quickly after another when an IQ2 back is used on cameras such as the
Phase One 645DF+/DF/AF, Mamiya 645DF/AFDIII, Hasselblad 555 ELD (DIG
mode), Hasselblad H or Contax 645. The electronic communication with the
body ensures that the IQ2 back is ready before allowing release of the next
shot. However, users of other camera bodies that do not use the electronic
interface from the IQ2 will have to wait for the ready beep signal before
releasing the next shot.
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