YUKON NVMT 3 ( 4X 50 )

Hello, the Russian image intensifier tube when south fastern than an Eithopian chicken. Sorry, GB...stewbison

Change the ISO setting to a higher figure but not too high or you will get color distortion or use a tripod or rest camera on solid object and use the self timer

well its a gen "1" unit so any extra "ir" light will help out a lot! i use a deban gun light 50 watt buld with an "ir" filtter fitted to the light i can see nearly 1/2 mile and i can just about target a rabbit at no more than 100m with my sight set at x5,,,(3-9x50 with a 30mm bore) there not all there cracked up to be,,you loos a lot of light going through the scope,
to have a good night sight you need to go to gen 3!!!! so you need to sell your sole to buy one!!!

The scope may flicker or flash when used in a bright environment. To fix this you should only use a NVMT in a dark. It will restore itself in a few minutes or hours, depending on how long it has been exposed to light.
It may also flicker for the first several seconds of use in dark, before the device corrects itself.
With a severe exposure to bright light for prolonged time the light enhancing unit may damage beyond repair.

Weak battery (below 2V). Lens cover on. Focus off (it can be adjusted). Too bright environment.
Without handling the scope myself these are the best guesses.

Define 'clear'.
Is it blurry? Focus the scope or clean the lenses.
Is it distorted? Don't know how to fix. Especially if the lens is cracked/scratched etc.
Is it dark/snowy? Put fresh batteries in.
Do you see black spots in the tube? Don't worry, certain amount of these are quite acceptable.
Anyway: It's a night vision for pete's sake. The picture won't ever be like the one on normal binoculars.

The electrical harness between the steering column in these gmc units are troublesome. I just paid $500 (part $300) to have mine changed out on my 97 gmc yukon, but for 335,000 kilometers, no leaks, no oil consumption, not bad

Unscrew front lens front of intensifier tube should have an even bronze tinted coating on glass if it is grey and blotchy the tube is degassed. common fault with this model nightvision
wayne

Try to jank it left-right and simultaneously try to force it back to threads (either pulling or pushing). Don't hit it with anything since this may damage the insides.

It should focus normally from some 50ft up. Try to adjust the dioptery on the rear ocular.