henry link
Well-known member
Lars and Bruce,
I think you’ll find that in nearly every binocular one barrel is better than the other. Usually more coma is introduced into one side in the process of collimation or there may be astigmatism confined to only one side. Whatever the reason, one side will usually have at least a little better resolution and the image will look at least a little cleaner when the magnificaion is boosted. I usually cut to the chase and start by doing a high magnification star test to see which side is the “good” one and then use the booster on that side.
Henry
I think you’ll find that in nearly every binocular one barrel is better than the other. Usually more coma is introduced into one side in the process of collimation or there may be astigmatism confined to only one side. Whatever the reason, one side will usually have at least a little better resolution and the image will look at least a little cleaner when the magnificaion is boosted. I usually cut to the chase and start by doing a high magnification star test to see which side is the “good” one and then use the booster on that side.
Henry
