Martin Baxter wrote:
Joe wrote:

Thanks to Gillies link I found you shound not close an eye to set up
your binoculars
[snipped bino setup info]

I've been doing it that way since I was 14, (usually use one of the
lenscaps to cover the lense).

Cheers
Marty

I've been doing it wrong since I was 16. It's nice to learn something
new here.

Joe