Sakura bins
Anyone have a view on these? Seems to good to be any good tbh MEGA ZOOM BINOCULARS 20x180x100 POWERFULL | eBay surely too cheap to be any good. has BAK4 which has my interest a little but simple things like spelling mistakes and poorly worded adds makes me think they are just crappy knock offs
I don't quite understand the specification of these bins. It says 20-180x100, then states that the objective lens diameter is 70mm. At 180x, the exit pupil (for 70mm OB) will be less than 0.4mm. Not much light there! I should steer well clear of them!