Thank for the welcome and your reply, he is interested in everything (planets, the moon, "deep sky"), he wants to take some pictures too, yes he uses the binocular from home, we live in Puerto Rico, in the center of the island to be more specific, in our area there is no much light pollution but if the telescope can be move will be a plus, he has made some searches but hasn't decide for one yet, I personally don't know anything about specifications (sorry for the ignorance) I just watch what he shows me that are a lot of thing, he gets so excited when he talks about this things, well talking about budget I think maybe like a $1,000 but if it could be less it would be fantastic. Thanks again.