Great throw, well done. To get 1350kcd throw with a 80mm lens you have done everything well: quality led, quality lens and very good performing collar. I'm as well curious about how you made the collar (or was it bought as is?)
Djozz if you haven’t checked out Linus thread gaston01 mentions in the OP you should. Lots of very interesting discussions about collars & various ways to optimize an aspheric build
Yes in darkness the PVC give some usable spills but to walk, I open the zoom and is converted to very good flood, I’ll take some pictures of it and upload ….and a mid-zoom shooting a stream of impressive light!
The led are from Fasttech Xpg2 R5 1A on Aluminum star then I reflow on sinkpad, the lens are 78mm from Kaidomain I buy 2, one goes good the other not
As I said, the secret is in the focus on collar height, the thickness of aluminium coke can may mean 1100 or 1200 KCDS ….
I'm a bit on a flashaholic ration at the moment (my girlfriend is getting annoyed lately about the time I spend hobbying and she is right), but at least reading BLF is not as disruptive for family life as hands-on testing/modding in my hobby-corner.
Can you explain to me why the collar is as large as it is? Couldn’t it be just slightly larger than the LED? The distance from reflector to LED is the same as the distance back to the LED so the aim should be the same even though a smaller reflector’s angles would be wider. It also seems a larger reflective surface would need to be more precisely smoothed and positioned.
OMG, Gaston! That is simply amazing! I had to read the throw figures 3 times before I was sure I was seeing one MILLION three hundred and fifty THOUSAND candela. Good lord! What a fantastic job! You didn't just build your own Deft X, you smashed it into the ground and doubled it's throw. Mighty impressive work.
Santo cielos! Es un láser de color blanco. Del dicho al hecho hay muuucho trecho! pero no lograste, huevón lo superaste! Ya el foco tuyo es el cima. Quedo buenísimo.
Nice work, and very impressive figures you’re seeing.
I would like to see verification of those figures measured at greater than 6meters though.
Call me skeptical but I consistently see artificially higher candela figures when taking measurements below 10 meters. The beam isn’t really formed yet at that range (provided the focus is set for maximum throw) so I’d be really interested in seeing what kind of difference in throw (if any) you get when measuring at longer ranges i.e >50meters.
Oh and if you’re not happy with the look of that plumbing pipe, have you thought about finding and combining some cheap lens hoods/filter rings on ebay that will fit that 78mm lens? It’s a good size lens for that kind of approach!
Keep up the great work