Night Vision LIF Filter
- Thread starter Rerun7
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Light Interference Filter (LIF), P/N 5009737 - OwnTheNight.com
Light Interference Filter (LIF), P/N 5009737, protects night vision devices from laser damage from IR aiming and pointing lasers.
Light Interference Filter - LIF Night Vision Filter for PVS 14 & 7
The Light Interference Filter (LIF) protects night vision devices from damage caused by IR lasers & other IR illuminators. NSN: 5855-01-379-1410
www.venturesurplus.com
Thanks. I saw both of those during searches. One is out of stock and the other seems way overpriced. Probably why the lower priced ones are OOS...
I want to try and set one up on the eye piece to create more of a WP hue. I’ve seen it done on a couple sites and looks like it would be worth a shot for under $100
Ah, got it. It's not the same I've tried it, lol. I was just checking because I've ran into guys putting LIF's on thinking they were going to magically protect their tubes from IR laser strikes.
Haha, no, I’m trying for the poor man’s WP before I end up dumping a perfectly good low hr unit to upgrade. I’ve also heard it may be useful on thermal to make it not quite as harsh at night so I’d try that out too.
you know... quarantine projects, haha.
you know... quarantine projects, haha.
I do use the LIF on my 14 that I bridge with my thermal to give a better color comparison
It was some being sold on arfcom somewhat reasonably, and I might have an extra one if you can't find one
They dim down the 14 which I consider both a plus and a minus... Less green splash on face and easier on eyes, but it's also actually dimmer than before. Basically you end up with gain turned completely up trying to get back what you gave up for the color change
The filters that Jay sells from over at sureshot I think do a little better job of toning down the thermal screens just a bit. They also actually fit the back of the units correctly. The LIFs don't actually fit as they should on the back end, but they do work.
It was some being sold on arfcom somewhat reasonably, and I might have an extra one if you can't find one
They dim down the 14 which I consider both a plus and a minus... Less green splash on face and easier on eyes, but it's also actually dimmer than before. Basically you end up with gain turned completely up trying to get back what you gave up for the color change
The filters that Jay sells from over at sureshot I think do a little better job of toning down the thermal screens just a bit. They also actually fit the back of the units correctly. The LIFs don't actually fit as they should on the back end, but they do work.
IMHO the "scintillation control knob" (also called the "gain" or "brightness" knob by some) that we have on most of our 14s, should be used for "scintillation control".
Scintillation Control Knob (SCK) = turn down the SCK until you see ~nothing ... then turn up the SCK until you see an image and keep turning until you see "sparkles" ... then at that point, turn the SCK back down to remove sparkles to your taste.
The purpose of the SCK is to help you remove the sparkles ...
I've talked to some users who think the SCK is the "brightness" knob and who want to keep turning it all the way up for the brightest image !!
But the purpose of the SCK is to remove scintillation. Your eyes will adjust to the brightess. I run my thermals much dimmer that a lot of people I suspect. And my eyes thank me for it. It used to be I would take my eyes away from a thermal and I couldn't see sh^t ... now I can.
So, I suggest folks experiment with lower brightness on their thermals and using the SCK as an SCK. And your eyes will be happier and you will have optimized your image!!
Scintillation Control Knob (SCK) = turn down the SCK until you see ~nothing ... then turn up the SCK until you see an image and keep turning until you see "sparkles" ... then at that point, turn the SCK back down to remove sparkles to your taste.
The purpose of the SCK is to help you remove the sparkles ...
I've talked to some users who think the SCK is the "brightness" knob and who want to keep turning it all the way up for the brightest image !!
But the purpose of the SCK is to remove scintillation. Your eyes will adjust to the brightess. I run my thermals much dimmer that a lot of people I suspect. And my eyes thank me for it. It used to be I would take my eyes away from a thermal and I couldn't see sh^t ... now I can.
So, I suggest folks experiment with lower brightness on their thermals and using the SCK as an SCK. And your eyes will be happier and you will have optimized your image!!
Hey @wigwamitus do you run a filter on your thermals mostly or run un-filtered? I have a Halo-LR coming and looking at some filter options. Seems like Jay’s SNB is nice, he’s just out of stock at the moment.
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Spoke to him the other day via chat; he's hoping to have more filters available in a month or two. The Covid crap has slowed things down...
Gotchya nice. Any experience running filters yourself on a thermal? Any other better options on filters out there over the SNB that are actually available and not impossible to get
I completely agree with what wig said, and to clarify in case I sucked at explaining it...
I say you'll end up with the gain turned up not because it's how it works best, but because the LIF dims down the image enough that you'll be tolerating the scintillation to try and get some of the image back.
I have one newer 14 unit that's brighter than my older one and it's not as bad, but the older 14 I have is easier for the the LIF to really beat down what you can see. So you end up adjusting gain because you loose the ability to see stuff with a LIF on there
The other thing with the color the 14 appears to be with the LIF I don't get as distracted by the scintillation as much... so I can tolerate a larger amount of it. I think it absolutely takes a toll on what the 14 can do, but it does give you a more neutral color...
I say you'll end up with the gain turned up not because it's how it works best, but because the LIF dims down the image enough that you'll be tolerating the scintillation to try and get some of the image back.
I have one newer 14 unit that's brighter than my older one and it's not as bad, but the older 14 I have is easier for the the LIF to really beat down what you can see. So you end up adjusting gain because you loose the ability to see stuff with a LIF on there
The other thing with the color the 14 appears to be with the LIF I don't get as distracted by the scintillation as much... so I can tolerate a larger amount of it. I think it absolutely takes a toll on what the 14 can do, but it does give you a more neutral color...
I use Jay's purple filters on my 14s ... the new one has some bright shiny specs/dots in it and the purple filter mitigates mostly. And I put the other purple filter on my most used 14. I guess I'd like a purple filter on my other 14, but don't have one.
I use custom amber filter on the patrol. But I'm not sure it does anything other than reduce the white light emission, though that is useful.
I have no filter that fits the skeet or breach.
On the front, I use the 720nm filters on occasion ... but not usually as they interfere with some activities ... i.e. cause more problems than they solve.
net/net ... other than for purposes of "sac lens" ... I'm not sure I see a huge benefit to front filters. And until I got the 14 with the bright spots ... I didn't see a big benefit to the rear filters ... for thermal or 14s ...
So, I think I'd be able to function just fine with no filters ...
I use custom amber filter on the patrol. But I'm not sure it does anything other than reduce the white light emission, though that is useful.
I have no filter that fits the skeet or breach.
On the front, I use the 720nm filters on occasion ... but not usually as they interfere with some activities ... i.e. cause more problems than they solve.
net/net ... other than for purposes of "sac lens" ... I'm not sure I see a huge benefit to front filters. And until I got the 14 with the bright spots ... I didn't see a big benefit to the rear filters ... for thermal or 14s ...
So, I think I'd be able to function just fine with no filters ...
I too can confirm that a LIF on the eyepiece aint worth a Sh^T. Jay's SNR filters are excellent on the eyepiece end of NV IMHO.
As Wig said, the 720 nm filters are useful only in certain occasions. If you are in an urban high ambient light situation, they do pretty good toning down some of the glare and excessive white light.
These work great for a sacrificial/protective lens on the objective end of a PVS 14 and don't degrade the performance in dark environments.
www.bhphotovideo.com
As Wig said, the 720 nm filters are useful only in certain occasions. If you are in an urban high ambient light situation, they do pretty good toning down some of the glare and excessive white light.
These work great for a sacrificial/protective lens on the objective end of a PVS 14 and don't degrade the performance in dark environments.
Tiffen 30mm Clear Filter
Buy Tiffen 30mm Clear Filter featuring Clear Protection Filter, Prevents Damage to Lens, 1x Filter Factor, +0 Stop, No Effect on Image, Standard Coating, 30mm Front Filter Threads, ColorCore Technology. Review Tiffen null
I too can confirm that a LIF on the eyepiece aint worth a Sh^T. Jay's SNR filters are excellent on the eyepiece end of NV IMHO.
As Wig said, the 720 nm filters are useful only in certain occasions. If you are in an urban high ambient light situation, they do pretty good toning down some of the glare and excessive white light.
These work great for a sacrificial/protective lens on the objective end of a PVS 14 and don't degrade the performance in dark environments.
Tiffen 30mm Clear Filter
Buy Tiffen 30mm Clear Filter featuring Clear Protection Filter, Prevents Damage to Lens, 1x Filter Factor, +0 Stop, No Effect on Image, Standard Coating, 30mm Front Filter Threads, ColorCore Technology. Review Tiffen null
Do those just thread on the Obj end of the 14?
That is correct. These are 30 mm. Some of the threads on the end of PVS 14 are about 30.5 so sometimes you might want to take a tiny sliver of electrical tape and put on the Tiffen filter thread to take up any slack. Then when you screw it in to the PVS 14 it locks up super nice and tight and will not get loose.
The Tiffen filters work great. I have been running them a long time.
Another great thing about these is that you can still put your Daylight Cap on where as some of the others you cannot. Also the Pas 29 COTI works well with the Tiffen and still allows it to fit perfectly.
Thanks for the link. I have been running a 720 filter as a sacrificial but didn’t really care for it.
Not worth it if you're buying it to put on the ocular lens to recreate WP lol, unless you are really just that curious. It will be nice to have it to run on the objective lens once you get your kicks
I read an article where a guy had tried it out and it didn’t look bad. But if it really does dim the image a lot I’m not as interested. Where I hunt it’s already hard to see at times with it fully bright.
Here are the pics from that article. One without the filter and one with on the same tube
Here are the pics from that article. One without the filter and one with on the same tube
It does dim the image. These pics are best cause outcome but everything looks great with that much light. You can find LIF’s pretty cheap so best way to find out is to get one and see for yourself
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I been running a 720nm on Obj. , and a yellow amber over the Ocular full-time, for years . I just got acclimated with the image and have never taken them off .
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