smallblueplanet
Well-known member
I've been informed that I have to look for bins (8x40/2) with large eyepiece diameter. Apparently bins with small diam. give a tunnel-effect view to my specs-wearing partner.
Have seen that the Opticron DBA's have a diam. of 21.6mm, anyone recommend any others?
Have seen that the Opticron DBA's have a diam. of 21.6mm, anyone recommend any others?