User Guide

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4.2 General Hardware Setup
Powering up the IQ1 back
After an IQ1 back is connected to a camera body, insert a battery or a FireWire
800 cable and it will automatically turn on. The back is switched on/o by
pressing the power button located below the IQ1 back display.
ISO Settings
The IQ180 back has a default ISO spectrum from ISO 35-800. The IQ160 and
IQ140 have a default ISO spectrum from ISO 50-800, and the IQ150 has a
default ISO 100-6400 spectrum. 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 IQ1 CCD Series models, expands
the ISO range from 140 to 3200 at 20 megapixels resolution for the IQ180.
The IQ160 and IQ140 have a Sensor+ ISO range from 200 to 3200 at 15 and
10 megapixels resolution respectively. The IQ150 does not feature Sensor+.
Power Management and Shutter Latency
The IQ1 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 IQ1 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 IQ1 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 IQ1 will have to wait for the ready beep signal before
releasing the next shot.