i have 10x35 binoculars, when i look through it the image of the far objects appear double, i have tried focusing .please help.
2006-09-25 01:12:43 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
10x35 is no a really good pair of binoculars. For astronomy work you really need a 10x50(I have 9x65 even less magnification). Anyway try focusing on a earth source of light eg. a streetlight first. Do first the one eye with the main focusing wheel and then cover one eye and do the single one (usually left). Also make sure you have calibrated for your eyes the distance between the eypieces.
If the above does not work then I am afraid your binoculars do not cut it fotr stargazing.
Contrary to popular bilief a good pair of 10x50s is much better than a cheap telescope. Always remember when an astronomical instrument is stating the magnification factor is a toy. What you need to focus is the aperture!
2006-09-25 01:49:23 · answer #1 · answered by Sporadic 3 · 0⤊ 0⤋
The double image could be caused by focus problems or a lens misalignment. First, make sure each eyepiece is focused separately. Look though only one eyepiece and make sure it is in focus, then look through only the other one and make sure it is in focus too. If each side is separately in focus but the image is still double when you look through both at the same time, then the lenses are misaligned. Hold the binoculars a foot or so from your eyes and look through them at a straight line such as a window sill or the tip of a wall. If the lines seen in each eyepiece do not look like they line up, the lenses are out of alignment. It is possible to unscrew the ring that covers the edge of the front lenses to reveal the mounting hardware, which is an eccentric ring, but usually special tools are needed to adjust it. Basically, the ring that holds the lenses has two small slots that allow a special optical wrench to twist it, like a big nut. This rotates the entire lens in an eccentric ring to change the alignment. I did this once with nothing but a screwdriver, but since you can only push on one slot at a time, there is a danger of the tip popping out and scratching the lens. This is better described in Amateur Telescope Making, book 3, in the binocular chapter starting on page 377. Or google "binocular collimation".
2006-09-25 09:26:18 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
If you have a used pair of binocs, it is possible they were dropped at some time and the frame itself bent - missaligning the optical tubes.
Check for Dents indicating a drop in it's past history. If so, you might be able to "carefully" torque it back into alignment by bending the frame back...or you can try attempting to realign the optics as another person suggested, but that can be fussier/harder to pull off if you are unfamiliar with working with optics, and you could damage the lenses in the attempt.
2006-09-25 12:42:55 · answer #3 · answered by Wt heck? 1 · 0⤊ 0⤋
Try looking through only one side by closing one eye. If you only see one object then, you have the two sides of the binocs. too far apart. The eyepieces need to by lined up directly with your pupils.
2006-09-25 09:55:36 · answer #4 · answered by curious george 5 · 0⤊ 0⤋
it will fix its self, once you stop looking at boobies
2006-09-25 08:16:44 · answer #5 · answered by Dawn C 5 · 0⤊ 2⤋