Can I replace the objective lens in my Night Cobra monocular (binoculars) with stronger ones?
While it is technically possible to replace the objective lens, please note that the standard factory lens is adjusted to align precisely with the position of the Intensifier Tube, so that the unit can be focused correctly for both close and far distances. Any replacement may jeopardize the correct focusing ability of your Night Vision Device and may also limit its light amplification properties thus making the device less bright during nighttime use. Therefore it is not recommended to change the objective lens of your device. 11. Q: When I am operating my Night Vision Device, I sometimes hear buzzing sound. Is it normal? A: Yes, the “buzzing” sound is quite normal, and, unless it is affecting the performance of your Night Vision Viewer, it is not considered to be an imperfection. It is the power supply working to produce an image on your intensifier tube, which is then picked up by the ocular so that you can see what you are looking at. 12. Q: Can my Night Vision Device be used as a T
