At first glance I thought, that’s bigger than a UF-1405 for sure.
Luminus CSM-360 behind an asphere. Not exactly budget. $660-$920?
All I want is the host. A Luminus CSM-360 behind an asphere is going to look like total crap when focused. You could fit an XP-G2 die between the CSM-360 dies!
I’ve never seen anyone with a Feilong “2D80” light. I found these a few years back, passed by them again browsing and just wanted to post for more reference of what exists out there in china-land for big zoomies. For the mass and potential cooling ability of the light, it might make an excellent project host. Too bad their prices are so high.
After looking at the asphere head price, that isn’t bad all things considered. Compared to the whole light cost, you’d think one or the other was a misprint.
A TR-J20 head has more mass than that D80 asphere head I would say, after looking at the two. (And a longer pill cavity space.) States the total diameter is only 82mm on D80.
But it is exactly the same aspheric head, check under
“2. Specifications & Applications :” at Dimensions on the TR-J20 spec list, “Dimensions：Length 290 mm，Bezel diameter：82mm” the same as the Feilong D80-BV head.
Vinz used a ACEBeam K40 body to mate with the D80 head to make the Mjölnir + an dedomed XM-L2 at 7A with a lens mated to the die
I wonder how many people actually bought this light? I must admit when I saw it some time ago I wanted it but just couldn’t. If you’re looking for a host maybe look for a used sst-90 version as they sold for about $300 new. I don’t really understand the cooling fins on the zoomie head as they do little to nothing. Though the triple mce light from feilong looks pretty cool (pun??) still too pricey though
If someone is looking for a host head combo, the ACEBeam K40 + Feilong D80-BV should be around $100+$47-$68 before shipping
And we know Vinz made a killer mod with that, i am interested but i hope to play with the cheaper & smaller UF-1504 before, & hopefully find an even cheaper step up mod host at a similar size, when my yet undelivered 68mm 1504 is not enough anymore
Indeed they do look similar in exterior dimensions, but see there is a problem when you buy a TR-J20. It’s made for 12 XM-Ls; has a mount plate for them blocking the internal cavity.
Yeah I like the look of the MEM TR-J20 aspheric a lot, if this is your body host for the “MEM super thrower” i can’t wait
One problem with the Feilong D80-BV + ACEBeam K40 mod is that the ashperic lens are exposed so if you are not careful handling it, you get blinding glare in the eyes, but i still like the look though
Reflection is…well, reflection. I don’t like big extensions of bezel flaring out past the lens very far. If the bezel clears the lens enough to head stand, it is OK with me. A high-output light should be treated like one. You wouldn’t look into a laser or aim it towards your eyes, and the same goes for a high-output light. Basic eye safety. Also, a coated lens tends to be mildly fragile by any design implementation (camera, night vision, or flashlight). You wouldn’t want to scratch it, but sometimes scratches can happen to your gear if handled/stored improperly. It all comes down to how it is used and cared for. If you cannot afford to fix something you may damage, take good care not to damage it.
Ok, but you got me slightly confused.
Because in post #11 on the lowest pic headline you said
(80mm AR-coated asphere), is that then with an 80mm AR aspheric lens (that is not showing) plus an 90mm final lens in that last of the MEM spec modded TR-J20 pic?
No. In the photo, the 80mm lens is right where it should be. What’s not shown, is the final light configuration. I will be 3D printing (most likely), the new front bezel which will hold not a 90mm lens, but actually a 95mm lens. The lens objective aperture is around 90mm. The TR-J20 uses ISO metric trapezoidal threads on its main large thread areas of the head. I.E. they are not camera-hood friendly.
There are two options:
Have a stepped cylinder machined to replace the smooth forward bezel you see in that photo, with 3 lens-retaining rings designed for internal threads in the new bezel. Just like a camera hood. I have not found lens retaining rings that match my lenses, though. They will likely have to be made. I’ve searched, I can get close, but not exact. On CNC, they are a very simple part—won’t be too expensive for custom retaining rings.
The second option is to 3D print the new bezel, with more coarse internal threads. Metal retainers will clean up the printed threads like a tap will once screwed in and out a few times. This allows me some extra ability to control look and weight vs metal, since it’s a part that is large diameter, and doesn’t bear a lot of flexural or axial loading—so ABS plastic will be strong enough.
One retaining ring holds the asphere down. 2nd ring acts as a back stop, 3rd ring acts as the final lens clamp.
Making the bezel from aluminum is a higher grade component you might say, but ABS plastic is still strong, and shock resistant. Big trade off. I’d like the 3D printer to cover its own cost by using it, so I’d like to use whatever parts it can effectively produce.
