How to Repair Double Vision on Barska 10x50 Wide-Angle Binoculars

はじめに

Binoculars are somewhat delicate, and when used outdoors in dynamic settings, they can sometimes sustain damage, which can knock the two sides out of alignment, culminating in double vision. Small changes in the positioning of the prisms can result in significant differences in the vision of the binoculars, and binocular manufacturers often hide the adjustment screws to discourage owners from attempting to repair them on their own. This guide will demonstrate how to find the adjustment screws on a pair of Barska 10x50 WA binoculars and adjust them to align the double vision.

必要な工具と部品

手順1 How to Repair Double Vision on Barska 10x50 Wide-Angle Binoculars

How to Repair Double Vision on Barska 10x50 Wide-Angle Binoculars, How to Repair Double Vision on Barska 10x50 Wide-Angle Binoculars: 手順 1、 1の画像 1

Remove the main J0 head screw in the center of the binoculars, using the driver with the 4 mm bit and J0 attachment.

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手順2

Remove the top piece and the washers held under the middle screw.

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手順3

Pull the eyepieces off the binoculars.

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手順4

Remove the two side J0 head screws.

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手順5

Remove the four J0 head eyepiece screws.

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手順6

Remove the two eyepiece plates.

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手順7

Pry apart the rear rubber covering on each side to expose the two back prism adjustment screws.

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手順8

Adjust the two 1.5 mm flat head prism screws by slightly turning the driver.
Note: Look through the binoculars after each turn, and if the vision is aligned, you can stop at this step. If adjusting these screws does not align the vision, proceed to Step 9.
DO NOT tighten the prism screws too much, or you will crack the prism and permanently destroy it. Repairing or replacing the prism is beyond the scope of this guide.

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手順9

Unscrew the two front objective lenses by hand.

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手順10

Unscrew the two J0 head front screws.

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手順11

Remove the two front plates.

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手順12

Peel back the front rubber coverings on both sides.

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手順13

Adjust the two front 1.5 mm flat head prism screws with small turns.
Look through the binoculars after each adjustment to see if it is aligning the vision, and repeat the adjustments until it is repaired.
You may need to return to Step 8 to fine-tune the other set of screws. All four prism adjustment screws must be in their correct positions to produce the correct view through the binoculars.