940 ir

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villaman
Posts: 200
Joined: 20 Sep 2013, 06:53
Location: Dorset

940 ir

Postby villaman » 10 Feb 2018, 08:52

Will 940 ir work with pulsar N870lrf ?

lightmesser
Posts: 511
Joined: 09 Jan 2014, 01:19
Location: Eastern Europe

Re: 940 ir

Postby lightmesser » 10 Feb 2018, 11:33

It will work with anything but did you asked what is expected range? Having 940nm illuminator is like having poor performance flashlight that throws to 50m or something like that. It downgrades NV device performance and red dot signature is still visible(fain't but visible). I don't literary see any advantage over 840nm or even 810Nm illuminators... Well maybe for ratting...

So imho 940nm Illuminator is good way for downgrading performance of your NV device even in T67 size.

phoenix
BRUCE ALMIGHTY
Posts: 4567
Joined: 09 May 2012, 14:40
Location: Aberdeen

Re: 940 ir

Postby phoenix » 10 Feb 2018, 12:14

Lightmesser is spot on.
The camera in your NV scope is about one third as sensitive to 940nm light as it is to 850nm light.
So, you get reduced range but less visible (but not invisible) glow from the illuminator.

Cheers

Bruce
LAND ROVER - THE WORLD'S WORST 4X4 BY FAR

villaman
Posts: 200
Joined: 20 Sep 2013, 06:53
Location: Dorset

Re: 940 ir

Postby villaman » 10 Feb 2018, 13:11

Thanks Bruce , just seems to much glow on 850 that's all

jrn
Posts: 157
Joined: 28 Nov 2014, 18:30
Location: clitheroe

Re: 940 ir

Postby jrn » 10 Feb 2018, 13:58

villaman wrote:Will 940 ir work with pulsar N870lrf ?

Yes it will work fine with your N870 LFR the good thing about the N 870 it dos not need a lot off ir, I have use mine with a NM 800 940 pil in for rating but like others have said the distance is reduced .


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