Night Vision NF 1-4 & PVS14 TROUBLES???

fockell

Sergeant
Full Member
Minuteman
Aug 5, 2009
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SC, Kansas
Guys, finally got myself a PVS14, then mounted behind my Nightforce 1-4. It seems like it really chokes down the light and is almost useless with two married together. I have seen countless claims that people marry PVS 14s and low magnification scopes all the time.
Works flawless without the two together.
What's the secret? Have yet to try it with an illuminator.
Please offer some helpful advice.
Thanks
 
Re: NF 1-4 & PVS14 TROUBLES???

First, check that the center axis of your PVS-14 and dayscope are aligned. The exit pupil diameter on a 1-4x scope with narrow objective lens diameter is going to be quite small, so there's less room for error when aligning with your PVS-14.

Test the alignment with the PVS-14 and scope removed from your rifle. Note how much darker the image is if you're skewed to one side by just a little bit.

You have to understand that the dayscope is the primary collector of the light which is then transmitted to your NVD. That said, for best performance, you need a dayscope that has the largest objective diameter possible, as this is, for most scope designs, correlated with the largest exit pupil at the ocular end. The light coming out of the ocular end of your dayscope is what limits the performance of your NVD. Exit pupil is the diameter of the light image that is projected out of your dayscope's ocular.

For use with NVD, I recommend a dayscope with at least a 40mm diameter objective lens, and that will give you usable resolution up to about 4x maximum if your scope has a high index for transmitting light with minimal loss / attenuation.

I have found the [German] Zeiss Diavari and Hensoldt (Zeiss military optics division) to have incredible ability to transmit light, and giving far better low-light resolution than even the higher-end Leupold models; and slight but still noticeably better low-light resolution than even the vaunted Nightforce scopes.

Here's a photo through an NE/PVS-14 attached to a <Zeiss Diavari 3-12x56mm *T Long Range Sniper> scope via Monoloc. The reticle is in the first focal plane, by the way. The camera is a 10 year old Sony Cybershot (portable). Amazingly, this image is with the scope set to 12x magnification.

35179c0.jpg


The image is of a house 450 yards away. While the windows look to be on "fire", with unaided vision they actually appear as very dim interior lights muted by shades / curtains. The reflections from the face of the home are emanations from solar-powered sidewalk lamps that are so dim that the ambient light cannot be seen by the naked eye.

It is only about 50% the resolution and brightness of what I get with the same scope behind an AN/PVS-27, but is still pretty phenomenal, I feel, for a PVS-14 + dayscope combo. It is a testament to the 56mm objective lens, plus the superior light transmission and clarity of the Zeiss optics. Of course, the <*T Long Range Sniper> is far from being an ordinary scope for those are know what it was designed for and where its been.

In summary, you need:
+ Proper center-axis alignment of dayscope and NVD
+ At least a 40mm diameter objective on your dayscope
+ A dayscope with the best light collection & transmission attributes possible

NOTE: With your current arrangement, IR illumination should help give better image resolution, but only if you have proper alignment between your day scope and NVD.

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

My alignment should be grand. I turned a piece of ABS plastic that fits securely on the objecive of the PVS 14 and a tight fit on the ocular of my NF.
I have a 3-9x40 accupoint, maybe I should try it. Not sure how the triangle chevron will work.
Thanks for the info.
 
Re: NF 1-4 & PVS14 TROUBLES???

Tried my accupoint this evening. Light transmission was much better, however the triangle chevron was washed out into a circle, would only be useful for cqb. Will try something else soon.
May end up with laser for my aiming point.
 
Re: NF 1-4 & PVS14 TROUBLES???

Try also for Focus on your Scope . Me with pvs14 & when I look behind my Leu. with a 50mm Obj. .<span style="font-weight: bold"> I normally Run on 4x on the magnification . ( I set the focus on Infinity )</span>
The Reticle looks pretty nice also On 4x & infinity Focal .
Also if you get any kind of IR focus beam set-up . You will be GTG . much better for crisp defined images even past a couple hundred yards .

Nighttime & IR Laser plus any reflex sight & your GTG for anything a 100 yrds. & under with just dropping the Laser Dot on your target .
No need to even use the Reflex Sight . I only use my Reflex @ night to check the co-witness of the IR with POA & then I just turn OFF & put the cover on it .
.
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fockell</div><div class="ubbcode-body">Tried my accupoint this evening. Light transmission was much better, however the triangle chevron was washed out into a circle, would only be useful for cqb. Will try something else soon.
May end up with laser for my aiming point. </div></div>

Any aiming reticle that looks bright to the naked eye is going to bloom on your night vision. Try an Eotech. These have a button activated Night Vision mode that emits a reticle that is invisible to the naked eye, but shows up sharp and clear on night vision. The holographic design of the Eotech gives a very crisp reticle on your NVD regardless of how close or far away it is located from your NVD.

That's if you need to mount your NVD + aiming device on your firearm. Otherwise, I recommend head mounting your NVD and acquiring your target with IR laser mounted to your firearm.

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

I think the head mounted NV, ran with designated laser on weapon is the way to go. What type ir laser would I want? I want one for a rifle for sure and then would like a small one for ia pistol.
Thanks
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fockell</div><div class="ubbcode-body">I think the head mounted NV, ran with designated laser on weapon is the way to go. What type ir laser would I want? I want one for a rifle for sure and then would like a small one for ia pistol.
Thanks </div></div>

Recommendations:

A PEQ-15 / ATPIAL with 45 mW IR laser designator / aimer and 45 mW IR laser illuminator should take care of your needs on rifle.

The Lasermax UNI IR (Class 1) will be more than enough IR laser for any handgun. It will give a tight but visible aiming dot at distances far greater than you'll be able to shoot to with a handgun.

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

DBAL I2 Class 1 (Civillian legal) is also a great unit and they reach out to 200 yards nowadays. They are built VERY well with an aluminum machined body housing.

In the past, we have broken polymer body housing units. There is a reason some Mil folks use "zip ties" on their older PEQ-2's and some ATPIALS. ;-) Then again, we've broken a few things on the DBAL's, but never the housing itself.
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor-TNVC</div><div class="ubbcode-body">DBAL I2 Class 1 (Civillian legal) is also a great unit and they reach out to 200 yards nowadays. They are built VERY well with an aluminum machined body housing.

In the past, we have broken polymer body housing units. There is a reason some Mil folks use "zip ties" on their older PEQ-2's and some ATPIALS. ;-) Then again, we've broken a few things on the DBAL's, but never the housing itself. </div></div>

Damnit, Vic. You need to stop rappelling out of tall buildings and jumping out of perfectly good airplanes and maybe ... just maybe ... you'll quit smashing up your polymer gear! :)

The LDI DBAL (PEQ-15A) is a wonder of machining, no doubt, and is remarkably compact. The DBAL-A2 is, in my opinion, the best of the DBAL offerings in overall configuration and ergonomics. I like the finger adjustable windage and elevation knobs.

However, the ATPIAL (PEQ-15) illuminator is much better than the DBAL illuminator in my opinion. The ATPIAL illuminator is more even (in brightness) through its illumination field, and maintains better center alignment as the lens angle is opened and closed. This is important to me as I tend to like to align my aiming dot right in the middle of the illumination window.

The standard DBAL-A2 model is 35 mW on both designator and illuminator. While the ATPIAL is 45 mW on both, only 10 mW greater, I find its designator beam and the illuminator to project much more brightly (than what the DBAL-A2 outputs).

I do like how the DBAL illuminator can be brought back to a pencil beam to operate as a second aimer / designator. The ATPIAL illuminator remains a bit more diverged in its most narrow setting. However, the illuminator on the DBAL is kind of a pain in the ass to get back to pencil beam if you're adjusting without projecting the beam -- it will still wind down past the "zero" setting which causes the beam to open up again. Generally, the adjustable collar on the ATPIAL illuminator is much more durable, easier to operate, and easier to precisely adjust than the one on the DBAL.

The DBAL-A2's pattern generator plugs are the best in my opinion - I like the plug-in design and how you can rotate them 360 degrees, and can combine patterns by putting plugs in both the illuminator and designator output ports at the same time. However, the newer DBAL versions have gone to the bikini style pattern generator interfaces that have been standard on the ATPIAL for a long time.

The ATPIAL design with the on-chassis storage for the lock-out screw is very smart. You can see that LDI copies this feature on their later model DBALs. The ATPIAL coming standard with the neoprene plug to keep water and dirt out of the unused cable port was another convenience and user smart feature. While the DBAL has a part number for such a plug, I've never seen one personally, and I see a LOT of items that actually go into military and law enforcement operations.

Where the ATPIAL really surges ahead, in my opinion, is on the on-board electronics that allow the operator to program and store different laser pulse rates. This is much more "intelligent" technology. While the DBAL-I series proposes to be "intelligent," it does not have the programmable pulse rates.

The ATPIAL controls are considerably more simple. One dial switch hits all the output functions for high and low. The DBAL-A2 has more than one switch ... one to turn on power, and another to set function. Under pressure and in the dark, it is more things to have to fumble with when KISS counts.

The on-board pressure pad for the ATPIAL is simple and more durable than the same for the DBAL-A2. The later DBAL models have improved on-board pressure pads, however. On the remote pressure pad and cable, the ATPIAL offering is superior. Its cable is much stronger with a heavy co-axial braiding beneath the rubber wire coating, and its pressure pad has a much more positive "click" for activating and deactivating.

I have both the military contract and non-military contract production examples of the ATPIAL and DBAL. There's no difference in quality for the ATPIAL between military and non-military contract versions. The DBAL is different ... the DBAL models produced for DOD contracts are much, much more reliable than the ones they produce under non-military contracts.

Lastly, in my opinion, the rail interface on the ATPIAL has less compatibility issues with accessory rails than does the standard ARMS rail interface on the DBAL-A2. LDI has switched to an improved interface on later models, but I still find the ATPIAL vise style lock-up to be more flexible and adaptable than the lever-clamp type on the DBALs.

I own and use the ATPIAL and many variants of the DBAL, so I have no particular inherent bias for one over the other. However, in practical use, I find myself leaning to the ATPIAL over the DBALs ... and I still rappell out of helos and somewhat tall buildings with some regularity, but haven't leapt from a perfectly good airplane for some time now.
laugh.gif


IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

If not for the electronic "gain" switches (which are tough to operate with gloves) the ATILLA would kick all their asses. Well, that and the added weight issue, but it doubles as an instrument to bludgeon your target with, should you have a weapon malfunction!
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NoveSPR</div><div class="ubbcode-body">If not for the electronic "gain" switches (which are tough to operate with gloves) the ATILLA would kick all their asses. Well, that and the added weight issue, but it doubles as an instrument to bludgeon your target with, should you have a weapon malfunction! </div></div>
I have a high impression, also, of the ATILLA-200, and have posted positive reviews of it on these forums. Its design which puts more of the output muscle into the IR illuminator (150 mW rated) and less into the IR designator / aimer (50 mW rated) was very well thought out.

However, the DBAL-A2 and ATPIAL have a small design advancement that addresses a logistical need important to the U.S. Military and which the ATILLA does not: this comes in the form of a visible laser whose azimuth is directly aligned with the azimuth of the IR laser aimer. This permits troops to boresight the IR laser aiming on their DBAL-A2 or ATPIAL devices during daylight conditions.

The U.S. Army has a large IDIQ contract for the DBAL-A2 for its M16 rifles and carbines, and the USMC has a large IDIQ contract for the ATPIAL for its M16 rifles and carbines.

That said, a truly outstanding feature of the ATILLA can be found in the NVISYS mounting kit for it, for the M16 rifle, which includes a "thumb spur" with an integrated pressure pad that can be conveniently activated by the hand holding the forearm of the rifle, and which is integrated to the body of the laser without wires hanging out to be snagged or ripped loose.

Anyone who has used military IR laser devices (including the DBAL and ATPIAL) on small arms knows that there is not a good mounting solution for the larger-sized, thicker, heavier-duty, remote pressure pads that come with the military IR laser devices. Their "industrial" size makes them incompatible with mounting systems such as the Mantarail which is designed for smaller, thinner, non-military tape switches. So far, the only answer has been velcro straps, which Insight supplies with their ATPIAL; and for which LDI supplies no solution other than the usual velcro hook and loop attached via adhesive.

The ATILLA M16 mounting kit was a very smart solution to this problem. As a result, I have invented a remote pressure pad and wire management system that uses a different mechanical approach but which provides similar ergonomic benefits. It will work with any rail mounted IR laser device and industrial grade pressure pad system -- including the very proprietary and ultra heavy duty remote switch and wire coil used by the B.E. Meyers IR laser devices. It is currently under review for patent, and once full intellectual property protection is attained, I will make it available for sale.

It solves some other logistical problems that the U.S. Military has had with their DBALs and ATPIALs (and any other rail mounted IR laser) on M16 rifles and carbines, but for now I'll keep that design info close to the vest.

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NoveSPR</div><div class="ubbcode-body">The one on Ebay has been there for about 6 months! He originally wanted 2000 bucks. I need to find one of those pawnshops! </div></div>

If I recall correctly, he also has had a GCP-1A 50 mW posted for some time at an astronomic price; along with some exotic B.E. Meyers gear of questionable lineage (as in, one-way ticket to USP Leavenworth, KS)!

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

Dang IR-V...You write too darn much to keep up...Do agree with most. I LOVE the ATILLA, HATE the early mount. Do wanna see your new press switch for this though when all the lawyer stuff is done. ;-)

Also, the LDI QD mount is REALLY that good nowadays. :) I feel it's probably the best factory OEM mount out there.

Vic
 
Re: NF 1-4 & PVS14 TROUBLES???

Okay guys, thanks for all the help so far. I ask you to put on your salesman hat for a minute.
I believe I will go with the lasermax for the pistol that IR-V recommend. Now for the rifle, listing a few requirements for it.
1.) I know for sure I want an class 1 laser so that it is eye safe.
2.) I would like it to have illuminator and aiming point. (Dual use)
3.) Robust, once mounted, POI won't move around.
4.) Only needs to support target engagements to 250 yds.
5.) Budget, I realize I will get what I pay for. However this a hobby, I won't be jumping out of airplanes.
smile.gif

Thanks again, I have learned a lot.
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: IR-V</div><div class="ubbcode-body">
Damnit, Vic. You need to stop rappelling out of tall buildings and jumping out of perfectly good airplanes and maybe ... just maybe ... you'll quit smashing up your polymer gear! :)
<SNIP>

IR-V
</div></div>

Oh, and the last PEQ I broke was going through a door jam sorta speak...I was foot planted on the ground. LoL The Laser Max in most of these scenarios would have been in a million pieces. Just sayin'....
wink.gif
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor-TNVC</div><div class="ubbcode-body">Dang IR-V...You write too darn much to keep up...Do agree with most. I LOVE the ATILLA, HATE the early mount. Do wanna see your new press switch for this though when all the lawyer stuff is done. ;-)

Also, the LDI QD mount is REALLY that good nowadays. :) I feel it's probably the best factory OEM mount out there.

Vic </div></div>


What can I say, Vic, other than there's a lot of that there polymer in them there ATILLAs!
grin.gif


For hard-core disaster recovery operations, I'll concede that my personal experience is that aluminum alloy decontaminates better and more easily than does plastic. BTW: You haven't lived until you've had to wear a full-up biohazard suit and mask WITH thermal vision gear, and toting a pepper fogger to boot, on a hot, humid evening in southern Georgia!

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body"> Oh, and the last PEQ I broke was going through a door jam sorta speak...I was foot planted on the ground. LoL The Laser Max in most of these scenarios would have been in a million pieces. Just sayin'....
wink.gif
</div></div>

Better to smash the plastic on one's $330 Lasermax than on one's $2,500 PVS-14, I always say. Dealing with Murphy's Law on the breakage of things is like managing auditors / inspectors: better to offer up and sacrifice something small up front instead of letting them pick what to take apart.

But seriously, the fiberglass reinforced polymer on the Lasermax can take its share of beatings and survive as well as any dustcover can on a polymer framed pistol that it may be attached to. It's tiny size helps keep it from becoming a leverage point for snagging and breaking. The Lasermax's primary weakness is that it isn't water proof ... it will temporarily short out if you go swimming or diving with it. Otherwise, it like many other laser devices, is lenses and circuits set in epoxy.

Unless our friend is executing a UDT mission, I think he'll fare well with the Lasermax UNI IR (class 1) on his pistol.

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fockell</div><div class="ubbcode-body">Okay guys, thanks for all the help so far. I ask you to put on your salesman hat for a minute.
I believe I will go with the lasermax for the pistol that IR-V recommend. Now for the rifle, listing a few requirements for it.
1.) I know for sure I want an class 1 laser so that it is eye safe.
2.) I would like it to have illuminator and aiming point. (Dual use)
3.) Robust, once mounted, POI won't move around.
4.) Only needs to support target engagements to 250 yds.
5.) Budget, I realize I will get what I pay for. However this a hobby, I won't be jumping out of airplanes.
smile.gif


Thanks again, I have learned a lot.
</div></div>


A Class 1 IR laser can give a decent aim point, however they don't do well for illumination with such low power (e.g. < 1 mW). For IR laser illumination, you're better off having around 50 mW.

If looking for something robust enough for "military duty," the Insight PEQ-2A (TPIAL), which is a precursor to and earlier military issue variant to the Insight PEQ-15 (ATPIAL), will give you a side-by-side IR laser designator and variable-focus IR laser illuminator, each at substantial output (50 mW peak). The PEQ-2A has high power and low power (eye safe) modes. These will cost around $1200 in new condition -- sounds expensive until you see what prices the Class 1 DBALs are being retail priced at!

IR-V
 
Re: NF 1-4 & PVS14 TROUBLES???

Realizing the DOD was tring to make IR more "gruntproof" by incorporating a visible laser on the newer models, I still prefer the PEQ2a simply for ergonomics and a little extra output. I like the slimmer profile and the switch is easily manipulated w gloves.