Sorry, it doesn't support picture or video recording. 

This is more a question of your glasses and not the lamp. She produces light. If your glasses have an anti-reflective coating, the lamp will not be reflected in the glasses, depending on the level of anti-reflective coating. (It should be noted here that the anti-reflective levels trigger different colors, level 2 triggers a blue tone in the glasses, level 3, which is the most recommended for working on the PC, triggers a green tone. This goes badly with a green screen , if the plan was to connect this to it) 

First adjust the focus, then aim the lens at the target, observe through the glasses and adjust the focus until it is clear. 

Yes. The binoculars have adjustable rotating eyecups. Those who wear glasses will be more comfortable viewing with the shortened eyecups, while those who do not wear glasses usually prefer the longer eyecups.  

This monocular is very useful to look faraway. My kids love it very much and use it to watch the airplane and the seagulls flying through the sky.