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

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:

To me it looks like they are being completely up front about how they do their measurement & why. Whether one agrees with it or not, you don’t have to wonder about their method…. they tell you right up front.

I don’t see out of focus with my eyes either.
But like Tom E said, I too think they could do a lot better with their beam shots…… :smiley:

Please add me to the list. This light looks good enough to make me actually sign up to the forum!

Welcome! :slight_smile:

can i be added for a second one?

Welcome shooterschmidty. The Miller will be out of hibernation soon to add you to the list.

Well received word from Neal today and it seems manufacturer is found
After a price is agreed upon we will disclose who its gonna be, I am psyched for sure biting my tongue here :wink:

Will update list later!

Welcome to BLF!

OK good news
LUMINTOP is going to build and sell the BLF GT

We agreed on a price of $111

There will be a limit on how much groupbuy GTs are going to be sold of 555.
This means I am going to change the list.
We will have 1 primary list with a max of 555 entries.
We will have a number of backup lists corresponding with the number of GT flashlights is asked for the most by a BLFer.

This is a bit complicated but allows the most people to get one at the groupbuy price.
Lumintop is planning to keep on making it so if the 555 are sold it will be possible to buy more.
Price for this is not clear.

For example
I am on the list 2 times
I will place my first entry on the primary list and my second entry on the first back up list
(Or course I put myself at the latest place)
If somebody asks for 10 GT flashlights (not happened but for example)
First entry on primary list
Second GT on first backup list
Third on second list
All the way up to the then created 9th backup list.
This goes in order of asking.

When time comes there will be only one order for a GT possible for the primary list.
People have a certain amount of time to place the order.
Then if we have not reached 555 units the first backup list is getting a PM for a new round of orders.
Then if we have not reached 555 units the second backup list
And so on.

Complicated but fair for all.