Zeiss CP.2 2.9/21 T, CP.2 3.6/18 T, CP.2 2.9/15 T, CP.2 2.1/28 T, CP.2 2.1/135 T Mount Change instructions

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Carl Zeiss
Compact Prime CP.2
Mount Change Instructions
1
E | Appendix
Table for shims to adjust Compact Prime CP.2 lenses
when used on digital cameras
Shim color Thickness [mm]
silver 0.013
gold 0.019
purple 0.025
light blue 0.032
red 0.038
blue 0.051
white 0.064
green 0.076
orange 0.102
light purple 0.127
clear 0.152
Example
Using a Compact Prime CP.2 35mm/T2.1 lens with an EF mount, scaled in feet and
a test chart at a test distance of 4 ft, an actual distance of 4 ft 1’ is measured. Due
to the table on page 14, a silver shim 0.013 mm must therefore be added to the total
thickness of the shims.
Note
Any combination of shims is possible to achieve the required thickness and
therefore the desired flange focal distance.
Always use the closest possible combination of shims.
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Tables for adjusting the flange focal distance
of Compact Prime CP.2 lenses
All Compact Prime CP.2 lenses cover the full-frame image format (24 x 36 mm),
ANSI Super 35 and Normal 35 image format, except the CP.2 18mm/T3.6. This lens
covers the ANSI Super 35 and Normal 35 image format.
Key
Minus sign: Shims must be removed
Plus sign: Shims must be added
Compact Prime CP.2 18/T3.6
Meter distance scale Feet distance scale
Distance to test chart [mm]: 1000 Distance to test chart [ft]: 4
Object distance at best focus [mm]:
900 -0.04 3ft 8’ -0.03
925 -0.03 3ft 9' -0.02
950 -0.02 3ft 10' -0.01
975 -0.01 3ft 11' -0.01
1000 0.00 4ft 0' 0.00
1025 +0.01 4ft 1' +0.01
1050 +0.02 4ft 2' +0.01
1075 +0.03 4ft 3' +0.02
1100 +0.04 4ft 4' +0.03
Change of total shim thickness [mm]:
Object distance at best focus [ft]:
Change of total shim thickness [mm]:
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