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17.3 More Details: Contax 645
Exposure Modes
The Contax 645 manual (M) and semi-auto exposure modes (Av, Tv) are fully
supported by the IQ back. Please note that Bulb is only supported on Contax/
IQ back when used inconjunction with the Live View function. Go to Chapter
20 (from page 143) for more infomation about Live View.
Please check the relevant Contax 645 manual for more information on
exposure modes.
Ensure that exposure times are limited between 1/4000 second and approx.
1 second to obtain the highest possible quality with an IQ back and Contax
645. Please note that it is not possible to expose images longer than 60
seconds with an IQ back.
ISO Settings
The Contax 645 exposure modes use the ISO value set in the IQ back. The ISO
setting can be adjusted from the camera back or in Capture One software
when shooting tethered.
Please consult page 59 of this manual for details on setting the ISO. Go to
page 51 for more infomation about tethered shooting.
Double Exposure Protection
It is not possible to accidently double expose an image by capturing one
image quickly after another when an IQ back is used on a Contax 645 e.g.
when using the continuous drive mode.
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