Scientific Grade Digital Video Camera
Chapter 4: Setup & Installation
ITN000089-D02, Rev H
Page 20
4.4.
Optical and Mechanical Mounting Considerations
4.4.1. Using a C-Mount Lens
For the best results, the use of a C-Mount lens that matches the optical format of the 2/3” imaging area is
recommended. For more information on Thorlabs C-Mount lenses, please visit www.thorlabs.com
C-mount lenses are specified with a flange focal distance of 17.5 mm. However, there can be considerable
variation in the flange focal distance among commercially available lenses.
To accommodate the variation in commercially available lenses, the camera has an adjustable flange focal range
of ± 1.5 mm. A procedure to set the flange focal distance is described in the next section.
Figure 4
Camera Shown with C-Mount Lens (not supplied) Using the C-Mount Adapter
4.4.2. Mounting the Camera
On most commercial microscopes, the use of a 0.63x adapter is recommended in order to match the optical
format of the 2/3” imaging area.
The adjustable flange focus may also be used to parfocalize a microscope, as described in the next section.
Figure 5
Camera Shown on Microscope Using C-Mount Adapter
Four 1/4”-20 tapped holes are provided, one on each side of the housing. These may be used with tripods, or
other optical mounting
