I might be outnumbered, but I still have to go with what my eyeballs tell me
In the day time ... with regular olde binoculars ... set up correctly for my eyes ... I really can see depth ... it makes my brain tingle ... I guess the two images are overlapping exactly ... but it is like I could reach out and touch the different layers I can see the layers so clearly.
With dual 14s ... I certainly get more light entering my eyes ... being processed by my brain ... and that is great ... especially for driving ... it does increase confidence as OSO says and that is exactly how I think about it. The confidence to move faster. Hecque ... on most night ... in my pastures ... I can move at daylight speeds with mark I eyeballs ... but not on nights like tonight where it is 100% overcast ... I'd be going a lot slower without at least one 14.
But do I really see the stereo depth thing with dual 14s that I see with regular binoculars in the day time? I should, but I can't swear that i do. I need to pay more attention. I mostly don't wear duals that much, just due to the weight not seeming to be worth it.
With a single 14 on the left eye ... on most nights .. I get some depth of field from the unaided eye. It can see shadows ... it can see major terrain features like treelines and ponds ...
With a single q-14 on the left eye ... on most nights ... I get depth of field from the unaided eye, just like with the pvs14. At this point I don't se a big difference in navigating with one q-14 versus one pvs-14 ... I get the same depth of field either way. Tonight however, it would have to be the PVS-14 to navigate ... with everything covered with snow and even some ice (it was raining hard Sunday night) not much with stand out heat wise. Tonight is a good PVS-14 night. The critters of course will stand out even more, but not the terrain which will be invisible to the thermal tonight.
When I first went out with the q-14 I was disoriented. Read my NV thread. I took some getting used to. But I've been out with the q-14 now about 100 times. And I've driven with it on my 4-wheeler or tractor several dozen times. The FOV was the main issue it was slight less and at first I found myself turning my head from left to right to make sure I wasn't going to bump into something. But somewhere in the past 3-4 months (will be 4 on 2 Jan) I stopped noticing the difference. I adjusted. I believe if the thermal performance is good enough, there is no difference for me. Could I be wrong? Maybe, but I base this on realizing that I know longer think about navigation issues with the q-14, whereas I did at first. I (almost) always take both, but The last several times I went out and navigated with the q-14 and the pvs-14 in my pocket I did not take out the pvs-14.
==
I can see cows with the pvs-14 for sure out to 800yds on the right nights. If I need to see better, I slip on the 3x magnifier on the front of the pvs-14. I focus the pvs-14 and the q-14 at about 80-100yds and don't touch it all night, unless I need to read a book. Oh I can't read a book with the q-14 ... but I can with the pvs-14 !!!
Navigating for miles in the woods can get tough. Especially if you can't see the stars or moon. I have two compasses for those cases!
It is a good point about battery life. I change the batts in my pvs-14s now and then, just in case. I change the batts in my q-14 multiple times per night. I usually have a 10 pack in my pocket
...