User Guide
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18.0 IQ2 Back for Contax 645
The Phase One IQ (Contax mount) digital back is designed specically
for the Contax 645 camera. The IQ back communicates with the Contax
645 through a fast internal electrical computer interface and utilizes
TTL phase difference detection type auto focus system.
18.1 Mounting IQ Back on a Contax 645
1. Place the bottom of the IQ back in the locking mechanism.
2. Press the button at the top of the back with your thumb and lever the
back into place.
3. Release the button to secure it into position.
4. Lock the IQ back into place by sliding the switch left towards the
release button. (See switch circled below left).
N.B. It is important to ensure that the bottom part of the IQ back is
attached correctly before the upper locking mechanism is pressed
together.
Removing the IQ back from the Contax 645
1. Slide the locking switch to the right position.
2. Press the button (circled left) to unlock the back. (Ensure that the
back is supported in your hand before pressing this button).
3. Gently lever away the top of the back rst. Be careful with the
contacts and protective glass on the back.
N.B. Your IQ back should always be protected by its plate when it is not
attached to the camera.