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Very nice attention to detail, really looking forward to seeing one in person.
 
when the light arrives and it has all the blue O rings, will you also supply spare ones, and a spare boot ?.
will to pay cost of course.
just want to be covered!.


thanks.
 
Just a few posts that interested me though I'm not buying any lights.

Sapphire tends to be more scratch resistant than glass but not more shatterproof from my reading. So in a light with a bezel that protrudes beyond the lens surface to protect it it really serves no great advantage unlike a watch where the watch face abrades against other things often.

As for the blue o-rings, I don't know where Prometheus lights gets his but they are very dark and shiny. The fluorosilicone rings I ordered and offered here years ago were much lighter and a little more matte in finish. You might have to scour the net if you are fussy about the shade of blue.
 
Thanks .
im happy with the Shade of blue in the picture.
It looks quite royal light blue, the same as Prometheus lights.

nbp said:
Just a few posts that interested me though I'm not buying any lights.

Sapphire tends to be more scratch resistant than glass but not more shatterproof from my reading. So in a light with a bezel that protrudes beyond the lens surface to protect it it really serves no great advantage unlike a watch where the watch face abrades against other things often.

As for the blue o-rings, I don't know where Prometheus lights gets his but they are very dark and shiny. The fluorosilicone rings I ordered and offered here years ago were much lighter and a little more matte in finish. You might have to scour the net if you are fussy about the shade of blue.
Click to expand...
 
I had selected a sapphire, but decided to switch back to glass. Have updated sheet.

eala

EDIT: Later undid my change cuz I am weak.
 
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Ladd said:
Nice attention to the little details. Price adjustment seems very modest....
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Thanks, this run is sort of a trial phase, so there may be little changes here and there. Future prices will likely be a little higher after this run, but nothing drastic.

Crazyeddiethefirst said:
Please go ahead with the Okluma Clip on mine, if it is not too late. Thank you!
Click to expand...
Sure thing.

jdboy said:
Very nice attention to detail, really looking forward to seeing one in person.
Click to expand...
Thanks.

neutralwhite said:
when the light arrives and it has all the blue O rings, will you also supply spare ones, and a spare boot ?.
will to pay cost of course.
just want to be covered!.
Click to expand...

Lights come with spare black rings and a black boot unless you pay for the spare set to be fluorosilicone as well. If you order a spare set in fluorosilicone/blue I will still include the default black spare set.

nbp said:
Just a few posts that interested me though I'm not buying any lights.

Sapphire tends to be more scratch resistant than glass but not more shatterproof from my reading. So in a light with a bezel that protrudes beyond the lens surface to protect it it really serves no great advantage unlike a watch where the watch face abrades against other things often.

As for the blue o-rings, I don't know where Prometheus lights gets his but they are very dark and shiny. The fluorosilicone rings I ordered and offered here years ago were much lighter and a little more matte in finish. You might have to scour the net if you are fussy about the shade of blue.
Click to expand...

Thanks for contributing the information. The sapphire lens definitely resist scratches well which are more likely with the small bezel than a larger one, but otherwise it is a bragging right.
The o-rings are a crapshoot unless you find a supplier that carries a particular color, and even then it varies by batch. The ones I have on hand at the moment are reasonable.
 
stateoftheart said:
The Sapphire also let's a different wavelength if light through. I'd consider it better :-)
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Can you explain further what you mean? I think sapphire has marginally better light transmission if that's what you mean but probably only detectable by an integrating sphere. If a different wavelength were coming through would you not have entirely different colored light coming out? I have lights with both sapphire and glass lenses and I cannot perceive a significant difference.
 
nbp said:
... I think sapphire has marginally better light transmission if that's what you mean...
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I don't think that's true. I'm pretty sure that sapphire lenses allow 95% of light through compared to 99% for UCL lenses with double anti-reflective coatings.
 
If I remember correctly sapphire allows less transmission than UCL lens, but still plenty high enough. If there is any difference in wavelength transmission, it is not noticeable to the naked eye, nor is the slight difference in overall transmission.

Again the main benefit is the hardness of a sapphire lens. If you are prone to dropping your lights often or worried about cracking a lens, a regular glass lens is slightly less likely to break, and cheaper to replace. If anyone has a source for AR coated 21mm mineral glass lenses that would be appreciated.
 
easilyled said:
I don't think that's true. I'm pretty sure that sapphire lenses allow 95% of light through compared to 99% for UCL lenses with double anti-reflective coatings.
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Oops did I get it backwards? Well then there's another reason one might prefer glass, haha.

So I guess scratch resistance really is the only significant perk for sapphire then. I personally have never scratched a glass lens but who knows?
 
nbp said:
So I guess scratch resistance really is the only significant perk for sapphire then. I personally have never scratched a glass lens but who knows?
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Similar to me, haven't scratched a lens yet, but still prefer sapphire :twothumbs

On totally different topic, driving through Wisconsin to Wausau tomorrow, in Green Bay Tuesday through Thursday..., driving home through Chicago - will be looking for a source to buy Bobak Veal Weiners.... (used to get them at my Costco)
 
maybe flashlightlens.com

Thetasigma said:
If I remember correctly sapphire allows less transmission than UCL lens, but still plenty high enough. If there is any difference in wavelength transmission, it is not noticeable to the naked eye, nor is the slight difference in overall transmission.

Again the main benefit is the hardness of a sapphire lens. If you are prone to dropping your lights often or worried about cracking a lens, a regular glass lens is slightly less likely to break, and cheaper to replace. If anyone has a source for AR coated 21mm mineral glass lenses that would be appreciated.
Click to expand...
 
neutralwhite said:
maybe flashlightlens.com
Click to expand...

Thanks for the link, the 21mm they have is 21.6 which won't fit. The 21.3 wouldn't either.


An update on the o-rings, function is more important than form, so I will only be sending viton o-rings installed for the threads. I tried the flourosilicone rings on the thread groove and they shred instantly even with the surfaces smoothed and deburred. This is partly a side effect of the thicker walls at the o-ring grooves than the Mac's, and the super squishy soft fluorosilicone rings. The bezel o-rings are no trouble though, and will be supplied as requested. The upside is that with proper o-rings, it provides a good, snug seal at the threads.

To clarify on spares, I include the spare black boot from the switch (requires trimming), a spare black bezel viton o-ring, and two spare black viton o-rings for the threads.
 
Thetasigma said:
Thanks for the link, the 21mm they have is 21.6 which won't fit. The 21.3 wouldn't either.


An update on the o-rings, function is more important than form, so I will only be sending viton o-rings installed for the threads. I tried the flourosilicone rings on the thread groove and they shred instantly even with the surfaces smoothed and deburred. This is partly a side effect of the thicker walls at the o-ring grooves than the Mac's, and the super squishy soft fluorosilicone rings. The bezel o-rings are no trouble though, and will be supplied as requested. The upside is that with proper o-rings, it provides a good, snug seal at the threads.

To clarify on spares, I include the spare black boot from the switch (requires trimming), a spare black bezel viton o-ring, and two spare black viton o-rings for the threads.
Click to expand...

Have you tried Esslinger?
 
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