I have a Night Owl Gen2 monocular that works pretty cool.I like to use it best when the moon is out real good. When i get into standand get settled in i pull it out and can see about 75 yards.When it is real dark out i hit the infrared illuminator button and can see ok,but that is really effective when walking in a dark house,or trying to find something in the complete dark if you don't have a flashlight.