Binoculars optical sight

Good afternoon! Today I would like to show you how to make an optical sight from binoculars. In fact, we simply remake the binoculars into a monocle and install a crosshair inside. A simple cheap and reasonably effective way to complement a makeshift pneumatics made from improvised materials.


Absolutely any binoculars will be suitable for creating such a sight (the device they have is basically the same).

With a flick of the wrist we turn the binoculars into an elegant monocle.

First you need to disassemble the eyepiece. To do this, remove all rubber bands and unscrew all the screws. By the way, the screws can not be twisted until the end

We take out the eyepiece and unscrew the sleeve, which presses the lenses against each other.

There are two lenses in this eyepiece. We will place the crosshair after the second lens (now it is in front of you)

The difficulty is that the crosshair must be very thin and focused on infinity. This will have to be done manually. It is necessary to find the distance at which any object placed behind the second lens becomes absolutely clearly visible through the eyepiece (and in a very enlarged version). Here we look through the eyepiece, and bring a screwdriver to the opposite side. The crosshairs should be placed at a distance from the second lens at which the screwdriver will be as clear as possible.

For example, here

You need to make four cuts in the sleeve to get the right distance

The crosshair itself will be made from one fiber of a synthetic rope. It is better to take a black rope right away, but in extreme cases there is always a black marker.

We make slots in the sleeve and in order not to overdo it, we check the result every half a millimeter.

In order to check the distance, we insert the fiber into the slots and clamp it with a piece of paper, cotton, in general, anything (you can even chewing gum).

Now look through the eyepiece.

Clearly? Not. We continue to saw. I agree, the work is jewelry, but quite real. Now clearly!

Fix the result with a second glue, do not forget to lightly stretch the fibers.

Cut off the excess and finally collect the eyepiece. Now, now the crosshair is visible even at a distance from the eyepiece

We insert it back, we twist screws and we put on elastic bands.

The resulting sight has one small minus: in order to look at it, it must be brought very close to the eye. And if the rifle has recoil, then you will walk with a fingal. And so, the sight is working fine.

Thanks for attention!

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