6
D | Adjusting the LWZ.2
to a camera you use
As the flange focal distance varies from camera to camera, it is necessary to adjust
the LWZ.2 lens to the camera used when changing the mount or camera model
(=shimming). In order for you to be able to do this, Carl Zeiss provides colored shims
in different thicknesses to make the process of adjusting the lens to the camera easier
for you.
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. Please use for shimming only the shim set for the Lightweight
Zoom LWZ.2. It is highly recommended to handle the shims carefully as they can
easily kink or tear which makes them unusable.
ȴ 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 Lightweight Zoom LWZ.2 lens
to a DSLR camera.
1. Fasten the Carl Zeiss test chart on a wall at 1.5m (=1500mm, 5 ft) distance and
ensure that the lighting 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.
