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Hey nitewalker forum, quick question. I'm using the TNVC NPBM with 2 PVS14s, and when I first look through it, things are blurry. This is after I focus them one at a time, going obj, occ, then obj lens. When using with both eyes, it feels "off" for a moment. My brain seems to adjust to this and within 10sec the picture seems great. What I really notice is the feeling of going cross-eyed when I remove the NODs and look unaided. This lasts for a minute or so. I also feel fatigued and a slight headache. Is this a collimation issue? When I flip the tubes around, one combo is definitely worse than the other. Thanks.

Just getting in to NODs for personal use. Didn't fully realize how spoiled I was using ANVIS some years ago. Love nitewalkers YouTube page and found this forum. Thanks all!

Hey guys - I'm going to try and build a BNVD 1431 - see: https://www.thefirearmblog.com/blog/2019/11/15/friday-night-lights-bnvd-1431-review-a-pvs-31-with-pvs-14-optics/ I'd like to find some tubes but it seems like it may be just as cost-effective to buy 2 x PVS-14s and then use their parts to build it. Anyone have any links / discounts to get 10160 or 11769 tubes for way less than $1700 each? 117