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

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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]:

Change of total

shim thickness [mm]:

Object distance

at best focus [ft]:

Change of total

shim thickness [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