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13.2 Flash photography on Contax 645
Use of flash sync cable
No cables are required between the P+ back and the CONTAX 645.
Flash sync cable must be connected to the CONTAX 645 camera.
The flash sync cable must NOT be connected to the P+ back. This
connector is only to be used when operated on a Large format camera
with the Phase One FlexAdaptor.
TTL flash
Because the CCD element reflects light different than film, and this cannot
be communicated to the Contax. Using TTL flash with the CONTAX 645
camera and P 65+ back, will result in a 2 f-stop overexposure. When
using TTL flash, the exposure compensation on the flash unit must
therefore be set to –2 f stops.
Cables shipping with P+ back for Contax 645 (Value added Purchase
only)
The P+ backs for Contax is shipping with the following cables (Value
added Purchase only):
Part# 50300143
Multi connector to Lens sync (for use with Large format
- in two shot mode)
Part# 50300144
From multi connector to mini jack female (for use with
Large format wakeup cable or Kapture Group one shot adaptor cable)
Part# 50300154
From multi connector to mini jack on the Contax
handgrip (used to enable Host Capture from Computer)
