7
For more information, tips and advice visit www.tvision.technology
Traditional Camera
(Code: SEE250/250L)
CCT297
- C-mount to CS-
mount adapter ring
Adjusting The Back Focus
Once you have fitted the lens and have an image on the monitor,
you may find that you can not properly focus the picture using the
fine focal adjustment on the lens itself. In this case you would need
to manually adjust the back focusing on the camera. Adjusting the
back focusing moves the CCD slightly closer to or further away from
the lens.
To adjust the back focusing you will first need to loosen the cross-
head locking screw on the back focusing ring. This will release the
ring allowing it to rotate as shown. Rotating the back focusing ring
moves the CCD forwards and backwards.
This is a trial and error process. Slowly rotate the ring clockwise or
anti-clockwise whilst watching for improvements to the image. Once
satisfied it is important to re-tighten the locking screw to prevent the
back focusing ring from being adjusted by accident.
If it appears that the lens will never focus correctly then it is
possible that you are trying to fit a
C-mount
lens on the camera,
not a
CS-mount
lens. If this is the case you will have to use a
CCT297
adapter ring as shown below.
Note
