BLF GT - 1.7 miles (2.7km) video beam shot (in 4K)

Would have been nice since you were there already to light up the Yonkers sign, I was looking forward to that after the intro. Thanx for the video though, impressive output.

Great video! :+1:
Actually it is 3.4miles or 5.4km, right?

Nice video, thanks!

Thanks for the awesome video!

yikes that is very impressive how far it throws… crazy

very nice beam shots turboBB

Nice video. It looked like it really lit up the side of the building. Did it look that bright with your eyes or was it because of the camera exposure? Though I imagine it would be hard to see it that far away with the naked eye.

Awesome work turboBB ! Thanks !

Nice, I live right by there and was going to do a similar test off the Palisades Interstate Parkway cliffs, but was worried that cops would come by and actually take my GT away. You know how NJ is!

Nice video!

Nice!

Interesting to see how this performs in a dry winter air :slight_smile:

At 1:52 you’re lighting up reflectors on the hillside :sunglasses:

Nice video

Thx guys!

@Zulumoose - going to go back during the daytime and get my bearings and retry the Yonkers sign. At that distance and at night looking at a tiny LCD screen I just couldn't make it out...

@Dengoh - nope, it's 1.72 miles actually but I rounded down

@Throw me in to - "This watch I got here was first purchased by your great-grandfather..."

@EasyB - at that distance I honestly couldn't tell if it was lighting up at all, it seemed like it did but I was trying to be careful to not get the beam in same line as the lens since it might just be the beam lighting up the atmospheric dust. Going to retry now that I've gotten a feel for the settings required (wide-angle cam was D850 with D500's 2.25x crop factor on that building - may reverse next time thinking the better light capturing capability of the FF sensor on D850 would offset the loss of crop)

@llmatic - funny you should mention that, the state troopers were actually there at the time and I cleared my activity with them (but I didn't have any equipment out yet... had they saw the beam, it might've been a different story... )

@beachlogger - Wow sharp eye, I didn't even notice that earlier. So I got a comment on the vid that lighting up signs was not a good way to test, but that was totally coincidental (serendipitous even?) since I didn't even know much less could see that those signs were there. I only noticed them while editing the vid at home. However regardless how reflective they are, they won't defeat the laws of physics for light fall off. I also had a TN31 with me that would certainly not have lighted those reflective signs up at 1.7 miles let alone anything else across the river. :)

EDIT: I checked out the maps and believe that sign on the hillside is most likely at the intersection of Glenwood Ave and Ravine Ave (2 miles from my spot):

https://www.google.com/maps/place/166-276+Ravine+Ave+Parking/@40.9498341,-73.8973912,122m/data=!3m1!1e3!4m5!3m4!1s0x0:0xc9aac33968ae1930!8m2!3d40.9501284!4d-73.8973443

EDIT 2: Or potentially Phillipse Pl one block behind it.

More testing to come but suffice to say, my PVC LMD won't be able to accomodate the size of this light so while I can do runtime, won't be able to provide "accurate" lumens measurement.

Most impressive video and flashlight! Thanks for posting turboBB.

That’s just the beam giving the impression of lit up.
All it’s lighting up is dust and humidity.
The only way to tell that the light is actually reaching that far is the reflective signs.

In order to see the target properly without the beam getting in the way you need to either be standing at the target or be several dozen or hundred meters to the side of the flashlight.

Some of it is from the lit up dust, but I think the camera is detecting a lot of light hitting the building. If it was just lit up dust in the foreground the image would appear brighter uniformly, but you can see the contrast of the vertical stripes on the building increase. I don’t think this could happen if it wasn’t lighting up the target.

lf it was only dust that lighted up the building, it sure was a “smart” dust as to follow the shape of the building!

Wow, great vid mate!

This was my impression too. In the close up you can see the whole area of the beam lighting up even besides the target. Contrasts are decreased in the beam. And with all the humidity/dust the seemingly increase of brightness on the target is much more than could be expected at this distance.