4.
Set the distance ring to the test distance according to the tables in the appendix.
This setting must not be changed during the adjustment process.
5.
Set the aperture of the lens to full speed.
6.
Obtain maximum image sharpness on the live view by varying the distance bet ween
the test chart and the camera.
7.
Now remeasure the distance between the image plane mark on the camera body
and the test chart (= the actual distance).
8.
If the distance has changed, the flange focal distance of the lens must be adjusted
by using the colored shims.
You find a list of tables in the appendix for each focal length to calculate
the resultant change of the flange focal distance.
9.
Now remove the lens from the camera.
10.
Remove the EF mount and EF adapter ring (cf. section C 2–4).
D. Adjusting the lens to your camera
As the flange focal distance varies from camera type to camera type, it is necessary to adjust
the CP.2 lens to the camera used when changing the mount or camera model (=shimming).
In order to perform this adjustment, Carl Zeiss provides shims in different thicknesses that are
color coded.
When the mount has been unscrewed, these shims can be placed in a groove in the lens
barrel. Any possible combination of shims can be used to achieve the required thickness and
therefore the required flange focal distance. The lens already contains shims when delivered.
Carl Zeiss recommends that the camera is set to the usual standard settings
(cf. works settings). You can obtain further details from the instruction manual
of the camera you use.
Procedure
In the following chapter we explain how to adjust your Compact Prime CP.2 to a DSLR camera.
1.
Fasten the Carl Zeiss test chart on a wall at the appropriate test distance (see tables
on page 12 – 16; the test distance is depending on the focal length) and ensure that the
illumination is bright and uniform.
2.
Mount the camera and lens on a tripod and level the camera, making sure that the centre
of the image is aligned with the centre of the Siemens star.
3.
Activate the live view of your camera, select the maximum magnification.
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