Attaching A Lens To A C-Mount Adapter; Mounting The Lens; Adjusting The C-Mount Adapter; Figure 8. Adjustable C-Mount Adapter - Princeton Instruments ProEM+ EMCCD User Manual

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Attaching a Lens to a C-Mount Adapter

Caution
Overexposure protection: Cameras that are exposed to room light or other
continuous light sources will quickly become saturated. Set the lens to the smallest
aperture (highest f-number) and cover the lens with a lens cap to prevent overexposure.
ProEM+ cameras for imaging applications incorporate an integral C-mount adapter.
Other mounts may be available. Consult the factory for specific information relating to
your needs. See page 146 for information on accessing the Princeton Instruments
Customer Support Dept.

Mounting the Lens

C-mount lenses simply screw into the front of these cameras. Tighten the lens by hand only.
Notes:
1. If the CCD is cooled to low temperatures (below -50°C), exposure to ambient light
will over-saturate it. This may increase dark charge significantly. If the camera
remains saturated after all light sources are removed, you may have to bring the
camera back to room temperature to restore dark charge to its original level.
2. Saturation is not harmful to a non-intensified camera, but it should be avoided.

Adjusting the C-Mount Adapter

The ProEM+ features an adjustable C-mount adapter that allows you to change the focal
depth. Use the hex key supplied with your system (or a .050" hex key) to loosen the
®
ProEM + System Manual

Figure 8. Adjustable C-Mount Adapter

Version 1.B