i need to buy an astronomical filter for a small telescope. while i searching on the internet, i have found this one:
http://www.teleskop-express.de/shop/...ter-1-25-.html
i think that it is good for me, because i am not interested on the sun, and i can`t observe the deep sky because i live in a city. so, it is apposite for all of objects that i may observe. but i need to ask here about it before buying it, how much it is apposite for a beginner? is it really good for solar system objects? and any other information...