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2.10. Objectives
• If a single objective adapter is used refer to the “ContourGT-K Installation and Maintenance
Manual” and follow those instructions to change an objective.
For an FOV lens change:
1. Remove the system cover.
2. Remove the installed FOV tube (lift up then out) and put it in a storage container.
3. Insert the desired FOV lens in the OMM (insert laterally, then push down to seat).
4. Replace the system cover.
Caution
On a manual system, if you do not match the software magnification selection with the
installed optics, the lateral dimensions of the measurements will be wrong.
2.10 Objectives
Objectives can be mounted to the OMM via a single-objective adapter (see Figure 2.8a) or a turret
(see Figure 2.8b). Up to four or five objectives can be mounted on the turret, depending on the
model purchased with the system. For instructions on changing objectives, see the “ContourGT-K
Installation and Maintenance Manual”.
(a) Single Objective
Adapters
(b) Turrets
Figure 2.8: Objective Mounting Methods
The working distance of each objective is the distance from the bottom of the objective to the
top of the sample when the sample is in focus. By keeping in mind the working distance, you can
reduce the possibility of damage to the sample and the objective when you are focusing the system.
The working distances for the objectives that can be used with ContourGT-K are listed in Table
2.1.
2.11 Performing a Measurement
If you feel ready, you can make a measurement by clicking the Measure button on the ribbon.
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