OSTS TN31mb Monster Thrower

JohnGalway

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I should stress, I am not knocking the light ! It certainly does what it says on the tin, and excellently. I've certainly never seen anything like it.

The trouble is with the application I wanted to use it for.
 

TEEJ

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That's always the compromise on range/flood. The more flood, the more power it takes to get the same range.

A concentrated beam is great for aiming at targets, but, a narrow beam is not great for FINDING targets. ~ 30 - 40 meters across sounds like a wide beam in abstract, but can seem narrow given the long way away you are looking with it, proportionally.


For example, a throw oriented light like an Armytec Predator XPG2 has a 4º beam angle, and would give a ~35 meter beam width at 486 meters of range...if you could SEE it at 486 meters of range.

The TN31mb is giving you about the same beam width at more than 3x the distance...and allowing vision of stuff at more than 3x the distance.

:D


TO FLOOD a long range target, you are in HID territory, and much more $ and reduced run time/portability, etc.

A Polarion PH50 for example would work to find the critters, and then allow targeting with the TN31mb, etc.


What FOV width did you want to get at the ranges you are looking for the Wiley's at?
 
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JohnGalway

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The Neutral White version of the TN31 was actually pretty good, but I foolishly sold it to a friend - a fact he revels in reminding me of. I have a cool white TN31 and the TN31mb.

I had a thought. I got a set of filters for an Olight I think, which fit the TN31mb. One of those was a diffuser, I wonder what would happen if I were to cut a hole in the centre of it to let the spot through, would it brighten the spill or "halo" as we call it, probably not.

I fooled around with doing a DIY HID job on a lightforce, but then I'm back into external battery territory, ahm, no, just no, really no, not going there again :D
 

langham

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That wouldn't work John, the beam doesn't actually pass through the center of the lens. Try putting something in the middle of the lens and see what happens.
 

Frank1967

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I will be selling my OSTS TN31mb. If anyone wants one quick I will be sending it Priority in the CONUS only. My interests are going toward custom and need to raise some funds.It will be posted on the SC shortly.
 

JohnGalway

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That wouldn't work John, the beam doesn't actually pass through the center of the lens. Try putting something in the middle of the lens and see what happens.

I'll give that a go the next night I manage to get out Langham. Had it out from 00.00 to 03.00 last night, one set of batteries :D Had it on a mix of settings between 3rd, 2nd, and highest. I'm starting to warm to it a bit more :) (Particularly when my friend is out with his stock TN31 :nana: )
 

yifu

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Well dang! I'll cheers to that. Its too bad its not in your budget for both.
:) There's only three types of CPF members, first are the type that sell all their other lights to fund lights that get smaller, dimmer and more expensive, ending with a collection that is no brighter than a 6D maglite that they started with..

Second is the type whose lights only get bigger, brighter, more ridiculously overwhelming and more homemade/modified(hint: BVH/Ma_sha). The rest are a bunch of moderates who have a little of both, which i think truely reflects 'flashohlism'.
 
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TEEJ

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:) There's only three types of CPF members, first is the type that sells all their other lights to fund lights that get smaller, dimmer and more expensive, ending with a collection that is no brighter than a 6D maglite that they started with..

Second is the type whose lights only get bigger, brighter and more ridiculously overwhelming (hint: BVH/Ma_sha). The rest are a bunch of moderates who have a little of both, which i think truely reflects 'flashohlism'.

LOL

Yeah, and only whiskey drinkers truly represent alcoholics...

:D
 

Frank1967

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Well dang! I'll cheers to that. Its too bad its not in your budget for both.

My tastes are going away from lights I can't EDC to ones I can. I enjoyed the WOW factor but for 99.9% of what I do a pocketable light is best. LOL! I have no budget BTW.... I was talking the lingo!! This is not my first BBQ...maybe with lights but...... I have had every obsession and owned the best of everything. Life is too short. I am NOT a window shopper!!
 

TEEJ

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My tastes are going away from lights I can't EDC to ones I can. I enjoyed the WOW factor but for 99.9% of what I do a pocketable light is best. LOL! I have no budget BTW.... I was talking the lingo!! This is not my first BBQ...maybe with lights but...... I have had every obsession and owned the best of everything. Life is too short. I am NOT a window shopper!!

LOL


You should buy some windows!
 

BeastFlashlight

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Second is the type whose lights only get bigger, brighter, more ridiculously overwhelming and more homemade/modified
Yeah that's me. Pocket EDC graduated to 'Well as long as it can fit on my hip' to 'So what if I need a small back pack.' I find myself scanning thru these forums anymore just saying "Weak. .weak. .weak..."
 

Albert56

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Not exactly a review, but last night I had a chance to test my TN31mb (certified at 402Kcd) over an extended distance. I shone it from the shore to a harbor light structure which I GPS measured as 0.7 miles away. I wouldn't say it lit it up like a Christmas tree, but I could clearly see it was illuminated above ambient lighting (18% phase moon). There was quite a bit of moisture in the air, as the beam was clearly visible going out, so I think the results would be even better in clear dry air without so much diffraction. I was rather impressed. Also, I'm kind of curious as to the spread in Kcd's people has seen so far - not that a few thousand one way or the other is going to make too much difference at this level. :)
 

TEEJ

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Not exactly a review, but last night I had a chance to test my TN31mb (certified at 402Kcd) over an extended distance. I shone it from the shore to a harbor light structure which I GPS measured as 0.7 miles away. I wouldn't say it lit it up like a Christmas tree, but I could clearly see it was illuminated above ambient lighting (18% phase moon). There was quite a bit of moisture in the air, as the beam was clearly visible going out, so I think the results would be even better in clear dry air without so much diffraction. I was rather impressed. Also, I'm kind of curious as to the spread in Kcd's people has seen so far - not that a few thousand one way or the other is going to make too much difference at this level. :)

I think he said ~ 400k cd was the lowest, and ~ 120-something k was the highest so far.

If you do the cd math its a reasonably small difference in range given normal variations...even if I use 430k cd for the upper end -

400k cd would be at 0.25 lux at ~ 1,265 meters, and 1 lux at ~ 632 meters.

430k cd would be at 0.25 lux at 1,311 meters, and at 1 lux at ~ 655 meters.

That's only ~ +/- 3.75% variation....a very close tolerance for lighting.
 
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