Hello and welcome. I'd like to ask everyone who uses any kind of binoculars for astronomy, rangeing from 10 by 50 binoculars. I've been looking for binoculars to buy a while ago that I can use anywhere else where I go. The question is who what using Porro  Prism or Roof Prism? Or does both of these types of Binoculars are good at astronomy? I have recently bought a roof prism, the Opticron Adventurer 2, cause I have seen people have good reviews of these binoculars.  So anyone have any opnion on these both?