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When you look into the binoculars you see double even if you adjust them

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This is usually caused by the unit suffering some type of impact causing the prisms to be unseated.

Posted on Oct 08, 2009

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1 Answer

Lens alignment


generally under the edges of the covering at the eyepiece end there are tiny screws that are used to adjust the prisms in the binoculars, generally out of alignment issues are caused by the prisms being out of alignment.

Apr 16, 2014 | Celestron Tripod/Wedge NexStar 4GT/5i -...

1 Answer

One image is slightly above the other at all distances. After using the binoculars for even a couple of moments, my eyes are strained. The problem was present when the binoculars were purchased, however...


The oculars are not aligned properly causing double vision. Check on the binoculars to see if there is a place to adjust the alignment of either of the oculars. Look for any loose screws that may cause the two oculars to be out of alignment.
If this is not the case try adding some torque to the binoculars to see if the will adjust to where they will both point in the same direction. The eyes can fuse disparate images slightly but there is a very small range that they can handle. If the two images are separated by more than this small amount it will cause eye strain and double vision.

Feb 13, 2011 | Minolta 10x25 Activa D WP XL Pocket...

2 Answers

They have been dropped and now have a double image


Chuck them away and replace them. Seriously. Your binoculars have suffered the most common fault which occurs to all makes and models: a bent or broken eyepiece yoke assembly.

If broken it cannot be fixed without replacing the whole yoke assembly, and on budget models like anything that Tasco sell it's cheaper to buy new and the spare part is probably unavailable anyway. If the yoke has bent then it's virtually impossible to unbend it without breaking it, and even if you do it's usually not accurate enough. So you try again and it breaks... On the rare occasions where you're lucky enough to get it right, the yoke has fatigue cracks and soon breaks regardless. Due to the loads involved and the tiny contact patch, gluing is a waste of time and usually just turns a broken yoke into a weak and bent yoke.

Given that you can now buy very good quality similar or superior binoculars from Bresser and others for around £10 to £15 new any kind of repair simply makes no sense. There's nothing wrong with cheap binoculars in general, but you have a simple choice; pay a lot for top quality models which then have full after sales and spares back up or pay very little and replace them more often. Even then, the yoke assembly for a high quality brand will pay for around six to eight complete new pairs of low cost binoculars. Your call...

Mar 11, 2010 | Tasco Black 7 X 35mm Binoculars W/Case

2 Answers

Seeing double when I look with both eyes. Out of


Step 1.
Adjust the eyepiece or both if both are adjustable back to zero. It should be printed on there. If it's not, then halfway. To find halfway turn them to one end, count the number of turns like 1 and a half turns for example, and then half that atnd turn it that ammount. You've now reset the binoculars to zero.

Step 2.
Now to focus. Pick your target that you want to look at thoguh your binoculars. Look through the binoculars and close the eye with the adjustable eyepiece or your right eye if both are eadjustable and focus the image on the left eye with the central focus knob. Once you've got it focused close the left eye, open the right eye and if it's not in focus adjust the EYEPIECE focus, not the central one, until it's in focus.
If you can't get it in focus because the eyepiece focus won't turn far enough in one direction, turn the OTHER eyepiece in the opposite direction at max, start the process again from step 2.

If it's all ok now you need to adjust the distance between the eyepieces. Open the binoculars as far as they go, look through the binoculars with both eyes on the target and move the binoculars inward slowly until you remove any black edges around the image, then move them very slowly inward until you see only one image.

If you've got more problems come back as ask. :-)

Nov 27, 2009 | Vector Audubon 8x42 Binoculars

1 Answer

Bushnell binoculars /double image


they have to be aligned if you want mail them to me for an estimate..larry@reichinstruments.com

Apr 19, 2009 | Bell & Howell Optics

1 Answer

Double Vision


Your glasses have had a hard drop or jar- they are out of colluminatiom send them to Deusch Optics in Nevada

Jul 31, 2008 | Oberwerk (OBERWERK1030X60ZOOM) Binocular

2 Answers

Focusing problems


Hello Samaro,

This effect is produced when the tho sides of the binoculars are not focusing the same.
Since you sayit is present at long distance, it might be that one barrel is stuck and is not focusing the same as the otherone when you scroll the middle "focuser".

What you can do is open it up and try to clean it, also see if there is something, that is making one of the lenses not move forward as far as the other one.

Good luck,
Dahaka

Jul 28, 2008 | Fujinon CD Binocular

3 Answers

Binocular Double Vision


We can align yur binoculars for your for 25-30.00 plus 5.00 to ship back to you. Some units have handy set screws to make adjustments from outside the unit. Call me, wwwbinocularservice.com
Art

Mar 05, 2008 | Magpix B350 Binocular

1 Answer

Double image


The distance between the centers of the eyepieces of your binocular must be the same as the distance between your pupils. This distance is adjusted as follows: 1. Focus on a distant object. 2. Pivot the two halves of your binocular farther or closer apart until you can see a single unobstructed, circular field of view. Make sure to focus on a distant object when you do this because when you focus on a close object you always see two slightly overlapping circular fields. Your binocular may have a scale on the top, between the eyepieces, to help you remember this setting.

Aug 03, 2007 | Bushnell 10 x 42mm Sportsman Binoculars

1 Answer

Double vision


The distance between the centers of the eyepieces of your binocular must be the same as the distance between your pupils. This distance is adjusted as follows: 1. Focus on a distant object. 2. Pivot the two halves of your binocular farther or closer apart until you can see a single unobstructed, circular field of view. Make sure to focus on a distant object when you do this because when you focus on a close object you always see two slightly overlapping circular fields. Your binocular may have a scale on the top, between the eyepieces, to help you remember this setting.

Jul 03, 2007 | Bushnell Powerview - Compact 10 x 25...

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