JNewell
Flashlight Enthusiast
First reports here in the US should be popping up this week when FlashCrazy's shipments start arriving.
Tiablo A9 53mm aspherical upgrade head!
- Thread starter StefanFS
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cerberuss
Newly Enlightened
For non-americans...I just saw that the aspherical head is available "ships right away" at a certain famous chinese dealer... DIY section.
😗
😗
alohaluau
Newly Enlightened
That's a good find cerberuss! Probably good for those who are not near to any authorised distributors.
I'll stick with my local Oz distributor but just have to wait until they get stock... 🙂
JNewell
Flashlight Enthusiast
Arrived today via Priority Mail to the East coast - thanks. All I can say is, amazing. I've never seen a beam that tight, apart from a laser. It's so tight that the light might actually not be a whole lot of use at less than 50 yards! I know that this is a useless post w/o pictures but there's no way of getting time to do that during the work week.
Swedpat
Flashlight Enthusiast
Beamshot - comparison between reflector and aspheric lens
Today I received the aspheric lens from http://www.schiermeier.biz.
Here is an indoor wall comparison picture between the reflector and aspheric lens. Maybe not the very best comparison for the purpose of this item, but it shows how small the focused beam is in comparison to the reflector. It's like removing all the spillbeam of a reflector light and place it in the hotspot. The result will be a very intense light point. But actually it's wider than the hotspot of the A9 with the reflector.
Here is a comparison shot:
I went out with my cousin and brought with me this one as well as Fenix TK20.
Below is a beamshot comparison. Unfortunately the picture is underexposed, but if you look carefully you can see the hotspot of TK20 to the left of the A9 aspheric beam...
Regards, Patric
Today I received the aspheric lens from http://www.schiermeier.biz.
Here is an indoor wall comparison picture between the reflector and aspheric lens. Maybe not the very best comparison for the purpose of this item, but it shows how small the focused beam is in comparison to the reflector. It's like removing all the spillbeam of a reflector light and place it in the hotspot. The result will be a very intense light point. But actually it's wider than the hotspot of the A9 with the reflector.
Here is a comparison shot:
I went out with my cousin and brought with me this one as well as Fenix TK20.
Below is a beamshot comparison. Unfortunately the picture is underexposed, but if you look carefully you can see the hotspot of TK20 to the left of the A9 aspheric beam...
Regards, Patric
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FlashCrazy
Flashlight Enthusiast
What TK20 hotspot? I don't see any hotspot! 
Kidding aside, thanks for posting the pics! A bunch more people should be receiving theirs in the next day or so. I'm curious to see the reactions from those who haven't experienced an aspherical before. :duck:
Kidding aside, thanks for posting the pics! A bunch more people should be receiving theirs in the next day or so. I'm curious to see the reactions from those who haven't experienced an aspherical before. :duck:
Re: Beamshot - comparison between reflector and aspheric lens
Might be a little off-topic, but one thing that has bothered me with all the commercial kits & setups that I have come across is the lack of a reflector alongside the aspheric lens.
While you are saying that the lens removed all the spill and put it into the hotspot, I don't think that it can be accurately stated as such. A reflector bounces the sidespill from the led and projects it forward into the hotspot while an aspheric lens just projects whatever light is hitting it from the led and projects an image of the led out in a distance while the side emitted light is mostly absorbed by the metal casing as heat.
So the question is why does the kit not include a reflector and the aspheric lens? Anyone come across some beamshots & lux measurements for a different light (maybe a M@g?) with {aspheric+reflector} & {aspheric alone} ?
And a side node: Tiablo, how about coming out with a glass TIR optic for the A10 flashlight - that would dump out ~96% of the light into the hotspot :candle:
Might be a little off-topic, but one thing that has bothered me with all the commercial kits & setups that I have come across is the lack of a reflector alongside the aspheric lens.
While you are saying that the lens removed all the spill and put it into the hotspot, I don't think that it can be accurately stated as such. A reflector bounces the sidespill from the led and projects it forward into the hotspot while an aspheric lens just projects whatever light is hitting it from the led and projects an image of the led out in a distance while the side emitted light is mostly absorbed by the metal casing as heat.
So the question is why does the kit not include a reflector and the aspheric lens? Anyone come across some beamshots & lux measurements for a different light (maybe a M@g?) with {aspheric+reflector} & {aspheric alone} ?
And a side node: Tiablo, how about coming out with a glass TIR optic for the A10 flashlight - that would dump out ~96% of the light into the hotspot :candle:
evenchaos, I think I have seen a comparison between aspherical vs aspherical + reflector somewhere. The result was that the reflector was pretty much useless with the aspherical lens. It will just add some spill or weird coronas around the hotspot. This is because only the light coming from the point source where the emitter is located will be projected forward as a beam. Light coming from the reflector is hitting the lens in totally wrong angle and will just end up everywhere else but the main beam and the hot spot. Thats how I understood it. So reflector is usefull only if you want some spill with your aspherical light it won't add any lux to the hotspot.
Anyone have any experience if those Tiablo products at the certain famous chinese dealer are real or fake?
Anyone have any experience if those Tiablo products at the certain famous chinese dealer are real or fake?
Swedpat
Flashlight Enthusiast
Re: Beamshot - comparison between reflector and aspheric lens
Thank you for the comment. You may be right, but I think it's a good way to express the practical function of the aspheric lens in comparison to a reflector. Because as well the total light amount and intensity becomes much higher with the lens than the hotspot of a reflector, it does mean that a significant part of the spill with a reflector now instead goes into the center.
We could also say that we have created a much brighter hotspot for the sacrifice of spill.
Regards, Patric
Thank you for the comment. You may be right, but I think it's a good way to express the practical function of the aspheric lens in comparison to a reflector. Because as well the total light amount and intensity becomes much higher with the lens than the hotspot of a reflector, it does mean that a significant part of the spill with a reflector now instead goes into the center.
We could also say that we have created a much brighter hotspot for the sacrifice of spill.
Regards, Patric
Trekmeister
Newly Enlightened
Received a head for my A8 today from www.schiermeier.biz by mail, it was well packaged and no damages at all.
Since this is my first aspherical I find it quite impressive! I wonder if my neighbours are as happy as me about it though. 🙂
Finish seems good, but the colour doesn't match my A8 at all. I'm not suprised and it is not a big deal really, at least not to me. Biggest gripe is that the lens protrudes ever so slightly in front of the bezel meaning I can't have the light standing up when not using it.
Since this is my first aspherical I find it quite impressive! I wonder if my neighbours are as happy as me about it though. 🙂
Finish seems good, but the colour doesn't match my A8 at all. I'm not suprised and it is not a big deal really, at least not to me. Biggest gripe is that the lens protrudes ever so slightly in front of the bezel meaning I can't have the light standing up when not using it.
JNewell
Flashlight Enthusiast
Odd - mine does not. I'd be pretty irked if it did.
Re: Beamshot - comparison between reflector and aspheric lens
I understand what you are saying, and the net result which you are describing is correct - there is no question that spill is removed and hot spot is much brighter with an aspherical.
I should probably point out that an aspheric captures a different section of the light output from the LED as opposed to a reflector and the lens has a higher transmittance efficiency as opposed to a reflector's reflection efficiency which contributes to the brighter hotspot.
I understand what you are saying, and the net result which you are describing is correct - there is no question that spill is removed and hot spot is much brighter with an aspherical.
I should probably point out that an aspheric captures a different section of the light output from the LED as opposed to a reflector and the lens has a higher transmittance efficiency as opposed to a reflector's reflection efficiency which contributes to the brighter hotspot.
Swedpat
Flashlight Enthusiast
I was on the way to mention it, because it's the same with my example. Therefore I don't want to have it standing upright on hard surfaces which could scrath the lens. But on a table mat or carpet will work. Quite bad actually, which I consider to be a faulty in the design.
Regards, Patric
JNewell
Flashlight Enthusiast
I don't know whether it's FlashCrazy or Tiablo, but mine arrived with both a GITD and a plain o-ring for the bezel. If the difference is slight, perhaps using both together would fix the protruding problem.
Swedpat
Flashlight Enthusiast
When I have seen the pictures at http://www.schiermeier.biz/html/tiablo_zoomoptik.html of the beam with the aspheric head it showed a clear defined projection of the LED-chip. But not from my light, the beam was unsharp. Today I tried to turn the head back from the bottom level I noticed that the image of the LED-chip clearly appeared. And the projection of the chip became much smaller than with the head turned down to bottom.
Actually it ought to mean that I earlier didn't make use of the highest possible lux value, and that the head shall not be turned down to maximum.
BUT: the "problem" with the beam focused to the sharp image of the chip is that the head is loose, it's possible to wiggle. With the aspheric head it includes two o-rings. I thought they are spare rings, but are they intended to stable the head when it's not turned down maximum?
Actually it ought to mean that I earlier didn't make use of the highest possible lux value, and that the head shall not be turned down to maximum.
BUT: the "problem" with the beam focused to the sharp image of the chip is that the head is loose, it's possible to wiggle. With the aspheric head it includes two o-rings. I thought they are spare rings, but are they intended to stable the head when it's not turned down maximum?
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Yeah, mine does that too. I quess the treading is just a bit too loose. Original head doesn't move that much. Maybe bigger o-rings would help. There just came one big o-ring with the aspheric. head.
Here's one more picture. I know, i need a proper camera 🙂. Picture is taken about 5 meters away.
From left to right:
Tiablo A9 aspheric vs KD M*g aspheric
FlashCrazy
Flashlight Enthusiast
Yes, if focused indoors to see the LED chip outline, the head will backed out all the way. But for actual use outdoors, the focus point won't have the head backed out so far... and it shouldn't be wobbly. 🙂
Thanks for bringing up the focusing ability... many users probably aren't aware, and just tighten the head down all the way... then they wonder where all the throw is. So to everyone... make sure you tighten the head all the way down, then back it out until you find the best focus for the distance you're using it! Then you'll have a
on your face!By the way, Swedpat and Jesseri: thanks for posting the pics!
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