[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

Im very interested. Waiting to see some price quotes

I am also very interested. If I can afford that monster of a light (and buying 8 new 18650s) im totally in.

Catadioptric is also an interesting matter. Someone could make bigger than Carclo.

Good Find!

Might be a similar or same exact optic used in this flashlight: https://www.silentthunderordnance.com/shop/eye-of-sekhmet

The EOS is spec'd as having incredible throw from a package the size and shape of a cell phone, in a wood case no less - 260 kcd rated!

Catadioptric would be awesome, if one can be found or made better (suited for XHP35) than the Carclo.

My word!!! :open_mouth: … I had never heard of Silent Thunder Ordnance

They have some that blow my TN42 completely out of the water………. :open_mouth:

Wrath of Ra
Lance of Ra
More
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Development Project - Convoy C8 294Kcd

Yep, 2.5 mcd would blow away a stock or modded TN42, that's for sure.... Interesting throwers...

Please remove me from this list (293). I somehow got this cornfussed with the Q8. Apologies.

Interesting for sure. :slight_smile: … Thanks for sharing that link…… :+1:

wow. I wonder what LED they are using to get that intensity.

It's a pricey aspheric lens, not your typical catalog Edmunds for example. He didn't specify the LED, just that it was a high luminous density. Maybe a dedomed XP-G2 or Black Flat?

interested depending on price.

list updated

Please add me to the list when you get a chance.

I wonder if it actually is 2.6Mcd.
From the images it seems like the lens is focused at a point less than 100m away.
Obviously if he focused the beam at 21m, where he takes his lux measurement, he would get an extremely high value.

The proper way of measuring lux is with the beam collimated, not all concentrated on the luxmeter.

Read their methodology for measuring: https://www.silentthunderordnance.com/test-protocols/

:+1: … Nice…….

Huh, it still looks badly focused in the images…
100m for a 2.6Mcd flahslight is like 10m for a 260kcd flashlight, still not very accurate.
Using a laser rangefinder and measuring lux at 1 or 2km would be more accurate, or using the proper calculations for highly collimated lights: Candlepower & Divergence Calculator For Uniform Beam Lights

Well, testing posted here on BLF over dozens of lights seem to prove whether you are at 10+ meters or 500 meters, doesn't make a difference. Under 10m you "could" get a lower throw reading. I've proved this to myself at 5m vs. 12m, most lights I tested were higher at 12m. This was done with throwers, but couple years ago now, up to 600 kcd or so.

1 or 2 km would certainly have issues of humidity in the air, unless you are in low humidity conditions.- desert, cool/dry conditions, etc.

They talk about the short range skew -- not sure I've heard of that but sounds like they are aware of it and take that into consideration.

Funny - measuring at 100m is 100 times the distance a lot of guys use. I think 1 m measuring is ridiculous, but many do that I've seen. I use 5m and only limited to 5m because it's the greatest distance I can do practically indoors, and can read the meter fine, so can do it myself. Also a few of us use 5 m (Dale, etc.) so comparing, it's apples to apples. I also try to be sure to always say it's measured at 5m.

For more realistic testing, I'll do it at 12-14m outdoors and get help.

I don't see the bad focusing - not sure what you see. If it were me, I'd try to do a much better job of beamshots and more complete views of the lights. They seem to have great stuff, should be showing it off better.

We can’t expect vendors to do a read test at 2000 meters like Dale did :wink: