Hi.
I have 8 security cameras from aliexpress(AHD)
Its ov4689+nvp2450
Varifocal 2.8-12mm
And I cant focus well the cameras
I think it Fixed Iris and that the reason.
I tried to put nd filter of 0.6 in front of the camera, and the focus looks much better.
But I cant put the nd filter well... I need maybe to stick the filter on the glass(Dont know how)
Maybe there is a better way to change the aperture or something?
Thanks for the help guys..