The Carclo 10621 optic will produce a tighter beam, focusing the hot spot, enabling a longer throw with less flood, as compared to the 10622 Carclo optic which produces a slightly less focused beam with more spill.
I’m not certain of how perceptible the differences are in real world usage with the XPL-HI V2 3A emitters, but I’ll find out soon.
I have used 10621 in custom builds like a quad BLF X5 with xp-g3 , and Nichia 219C in another , unfortunately i don’t have the same emitters under 10622 to compare them , but beam is great for sure .
Oh, I get it now. Adding optical oil film between them should work too. Less permanent, but if something goes wrong (it gets in the optic cavities f.e.) it’s easier to clean.
I just received the 3M 6900 Photoluminescent Film.
I applied it to the D4, above the LED board and below the optics, around the inner rim.
I cut the length approx. 1.0mm to short, so there is a slight gap.
I’ll be redoing it shortly.
The measurements I cut the strip to are:
- 73.25mm length.
Should be approx. 74.25mm length.
1.85mm width
Originally I cut it too wide and trimmed it to fit.
1” x 6” strip (25.4mm x 152.4mm), if no mistakes are made, can do (27) D4 heads!
I purchased 20 strips.
I better buy more D4’s
You can wrap it around the inner rim leaving the backing on, to check the fit lengthwise and the width.
The tape applies to the inner rim in a perfect circle without creasing.
After application, I suggest to push down with your finger and check for any space between the tape and surface, and seat the tape as needed, and then run your finger nail around the tape a few times to insure the adhesive seats.
In photo #4, you can see the gaps at 9 o’clock and the 5:30 position. I lifted the tape with a plastic toothpick and corrected this.
When you apply the tape in a circle, these spaces may appear but are easily corrected prior to setting the adhesive with your fingernail as described above.
The glow is very bright.
The light has been off 15 minutes, and the glow is just enough to see the light in a dark room from several feet away.
I believe the subtle glow will last for several hours.
Here are some pics.
I used the 3M 3350 tape I have to lift the optics.
Here is the redo without the gap.
The updated measurements are:
- 75.93mm length
2.39mm width
The above measurements are approx. and have leeway.
The 2.39mm width rides the full width of the inner rim, using the bottom ‘ledge’ as a guide for application.
This does not interfere with the optics sitting correctly.
The 75.93mm length has a slight overlap, which you want to alleviate any chance of a gap.
Thanks for the photo.
It looks like the distance from the red bushes to the tree is maybe half (but after looking at the photo some more) maybe equal the distance from the pavers to the red bushes.
Depth perception may be a little off by only having the photo as a reference.
40+40 meters?
Thanks Ven.
I’ve been spending more time here than on cpf lately
My TN36UTvn and T6vn got some good use during Irma recently.
Really loving my new EDC, the D4.
Amazing light.
Still has a subtle glow after 3 hours.
Thanks for the google map advice guys! just did my front door to the red bush and the far tree and here are the numbers:
Bush: 29 meter (95ft)
Tree far away: 65 or 70 meter (215ft)
I will edit these numbers into my original post
Now I have a XP-L HI 3A (Blue) on my way but it’s going to take a few days… I’ll do the same shot when it’s here too. I now also thinking about the regular XP-G2 S4-2B 5700k one in grey… and this one can get here in 3 days since it’s stocked… should I pull another trigger? :person_facepalming: