richard5700

Hi. What I thought I would do, is do the simplest thing, which was to turn the right hand objective barrel and see what happens. Well, I found that by unscrewing the barrel about 10 degrees, I achieved an alignment sufficient to produce a single image of a star. Of course, that leaves the barrel loose and it upsets the factory set collimation. After a spell of night sky viewing, I simply re-tightened the barrel. Seems a reasonable solution in this case. But if I had very expensive binoculars possibly not.

Hi. Actually, I don't think I can locate screws to adjust the prism. I've peeked under a rubber covering but nothing seen. So, I may need to use a method not involving prism adjustment. EDIT: Unscrewing the objective lens I see the prisms are held in my a flat spring, and the prisms are cemented into place. I suppose with something like a pair of expensive observation binoculars, to decollimate (or whatever it would be) if really necessary, would be easy peasy. And hopefully easily reversed.

Previously, I've never had a problem with double image with any binocular I have ever bought or used. So, naturally, I'm wondering if my eye misalignment is too great for any pair of binoculars to provide a single image of a star. I'm assuming that the binoculars I am using are collimated correctly as per the factory setting. I have no problem when using binoculars for terrestrial observation. The binoculars I am using are "MEADE 10x50", also called "PORRO 10x50". Has number: 4007922 144276. Bought them from LIDL some years ago for £10. Tonight I'll try another pair of binoculars and see what gives. EDIT: Point taken, must decollimate. 🙂

Hi. Years ago I had an accident and damaged my eye socket. Ever since when I look at stars through binoculars I see two images of a star. Because of the misalignment of my eyes the spacial separation is too great for my brain to combine the images from the right and left eyes. I'd love to buy a pair of observation / angled binoculars (not cheap) , but I fear it would be a waste because of this eye problem. Is there a solution so I could use binoculars without seeing a double image? Thanks.