Lens alignment Binoculars lens out of alignment causes double image. Need repair

alignment of pentaprism, you need to send it in or if its a goner, try it yourself. Unscrew one of the objective barrels and observe the pentaprism mounts. They may be in screw driven supports. adjust screw one at a time to see if you can get it back into alignment.

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.

Yes, and unfortunately it will cost more than these binoculars are worth. What has happened is that one or more of the prisms inside the binoculars has shifted, putting them out of "collimation", or alignment.

You could have a go at this yourself, as a proper repair is not economic, but treat it as a learning experience.

They are out of collimation, probably because one of the prisms has shifted a bit. This is usually caused by them taking a knock. Fixing them, if it can be done at all, is a skilled job, and Tascos are replaceable for less than the cost of repair, unless you can get it done under warranty (they would probably just send you new ones).

There are a series of lenses and prisms inside the binoculars. When the unit was dropped one of more of those elements have been dislodged and that is what is causing the double image. You can check with the retailer to see if there is a repair center in your area. The way these units are put together they are difficult to take apart, repair, and put back together. Depending on the cost of the unit you might be better off replacing them. Check with the retailer to see what they say.

Well, you can't, but a repair guy can. The body actually splits into two to access the collimation screws. Not a job for the faint hearted as the plastic has a tendency to crack if you don't prise them apart at the right spot.

Your binoculars are out of collimation. That means that the optical path needs to be aligned. Binoculars are designed so that the focus point of each barrel is the same over long and as short as possible distances. Binoculars that are properly aligned will still show a double image if you attempt to focus at something close that is too close for the models design. However this is not the same for long distances. The image at a long distance must not be doubled.

If they are under warranty and you haven't damaged them by dropping etc send them for repair to the manufacturer or ask the retailer where to send them.

If you are going to pay to have them fixed get a quote first. Binoculars that are of the zoom variety are not well thought of among binocular officionados as the quality of image degrades at higher magnification. For the price of repair you may be able to source a higher quality non zoom binocular.

take it into an outdoor shop and they can check the mirror alignment, seems that it may have "altered' itself

they have to be aligned if you want mail them to me for an [email protected]

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
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