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17.2 Viewnder Masking
The image area of the Contax 645 camera is 56x41.5 mm. A viewnder mask
is only needed for the smaller size of the IQ140 CCD that measures 44x33mm.
Viewnder masking is not necessary for IQ280 and IQ260 models as their
light sensitive CCD measures 53.9x40.4 mm.
Please check page 155 for the relevant viewnder mask.
Insert a Viewnder Mask
1. Remove the protection tape from the mask.
2. Dismount the prism/waist-level nder and remove the focus screen.
3. Place the viewnder mask in the bracket that holds the focusing screen.
4. Re-mount the viewnder focus screen.
5. Re-attach the prism/waist-level nder.
N.B. Please check the relevant Contax 645 manual regarding how to dismount
the viewnder and remove the focus screen.
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