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#3193184 - 02/16/19 11:20 AM Installed 1.5 lens doubler and poi shifted?
fxred Offline
Predator Master

Registered: 02/21/15
Posts: 70
Loc: VA
I have a 4x night vision scope and wanted to take it to 6x just for the extra help in ID at longer ranges but when I installed the doubler my poi shifted about 4". I was afraid to rezero and leave it on after seeing the dramatic change. Does anyone else have any experience? It just did not make sense to me as to why it would change the zero.

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#3193192 - 02/16/19 12:05 PM Re: Installed 1.5 lens doubler and poi shifted? [Re: fxred]
6mm06 Offline
PM senior

Registered: 07/31/05
Posts: 7608
Loc: USA

POI shift happens sometimes when adding doublers and clip-on devices. Since you want to make the scope a 6x, my advice is to resight with the doubler attached and leave it there. Just be aware that if you remove it and go back to 4x, you will also need to resight.

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#3193193 - 02/16/19 12:12 PM Re: Installed 1.5 lens doubler and poi shifted? [Re: fxred]
fxred Offline
Predator Master

Registered: 02/21/15
Posts: 70
Loc: VA
Ok I will do that... My concern was what happens at 200 would it track appropriately or not? I do not have more than a 100 yd range so I did not wantvto take chances.

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#3193194 - 02/16/19 12:14 PM Re: Installed 1.5 lens doubler and poi shifted? [Re: fxred]
DoubleUp Offline
Die Hard Member III

Registered: 12/18/10
Posts: 2420
Loc: USA
^^^^^^The Gentleman from SW Va. knows of which he speaks.

It will work fine at 200 when sighted at 100.


Edited by DoubleUp (02/16/19 12:15 PM)
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