Tint shift mitigation (kind of)

For me, the most irritating aspect of a reflector based LED flashlight has been the tint shift across the beam caused by the LED dome refraction. I found that shift, in case of a shallow reflector, to be by far more important issue than the average tint of a LED itself. One particular item which I have struggled with was a special Tana's SingLED with an 3700K high cri XPG harvested from my HDS clicky. A gorgeous tint spoiled by that **** yellow hot spot.

Now this is the solution which I found and which made me happy about this light, at last!

Here is the business end of the e1 bezel
https://i.imgur.com/t9I5r85.jpg

The blueish rim placed behind the front lens is made of a lee cct correction film filter (claimed to provide 3200K -> 4300K without any added tint) which transforms that <3000K yellowish hot spot to around 4000K. As you can see, it affects only the hot spot, while the spill is intact everywhere but the outmost part and even there the effect is invisible even on a white wall.
https://i.imgur.com/NO5rTCQ.jpg?1

And here is the beamshot I am so happy with:
https://i.imgur.com/lNCjlFI.jpg

That's brilliant. I had tried this several years ago, but backwards of how you did it, placing the corrective filter in the middle......... seems like you've got a winning idea, and your new beam is absolutely beautiful. Well done, and thanks for sharing.

Thanks for the kind words. My whole story with lee filters started off your threads on this subject

Interesting idea. I guess it makes sense that the outer portion of the lens is where you want to apply it if you want to correct the hotspot, rather than the spill - the hotspot obviously comes from the reflector, but my first thought would have been to correct the center of the beam by filtering the center of the light.