How are you doing with SST-20 dedoming?
I recently tried razor blade dedoming over turpentine bathed emitters (dome softening up) and it seems to work well. The turpentine bath did not do much on an old XM-L first generation softening up wise, it was done for 2 to 3 days but at refrigerator temp (I like the smell of turpentine in my fridge :-D LoL).
Cheers ^:)
I got a supposed FA1 tint bin from TA and it ended up being very similar to the FB4 tested in the OP. Actually a bit worse…
TA?
Thanks for the test. I’m looking forward to the day a nice tint bin is available for this emitter.
In case anyone’s interested, led4power has it in FC1 bin.
I have some of these FC1 and unfortunately the hulk-factor is strong with this one. With high currents they are fine, but low currents are terrible
Every SST I’ve tried has some hulk in them 
My SST-20s(FB4) also have some hulk factor at lower currents, and at higher currents the beam is noticeably yellow through the Carclo 10507. I feel like 319A gives a cleaner light and 219C is only slightly green?
the 3000K and 3500K aren’t green but they are slightly yellow sometimes and quite a bit lower flux bin
Higher duv is green on higher CCTs and yellow on lower CCTs. Same thing.
what would the ugly child of 3000k + 4000k, both slightly high duv look like?
But seriously, it could be nicely ending up on top of the BBL 
Something like this? :laughing:
I guess I’ll have to try and see it myself
I wonder how came this emitter was so highly rated initially. Did worse batches hit the market? Or did we not understand it enough?
Does dedoming improve tint significantly? I ask partially because I’ve seen a mention of SFT-20-W on Luminus website and in several other places….this would be SST-20 but flat from the factory.
It might become better.
I think the negative comments on the SST-20 are in comparison to other emitters that have GREAT tint. When compared to other Cree emitters or recent 219C 5000K it is still pretty nice.
I think I have lights with 3000K 3500K and 4000K. I could try mixing them by just shining on a wall but problem is they are different output and reflector/tir.
If I recall the 3500K looks fairly good on its own (from Mouser / BlueSword) so if you haven’t purchased emitters yet I would suggest trying that over buying 2 emitters you know you dont like.
Shaving the dome off with a razor (not a very clean job), the tint got noticeably better.
Any beamshots? I’m tempted to do some slicing and dicing.
Also is there somewhere I can read up on how to interpret these charts? The only things I know are the numbers in the top right 
Could you please append here a non-sacrificial output test of the razor-dedomed emitter, maukka? It would provide nice information regarding the potential output loss versus domed emitter.
I second this, if it’s not too much effort. My triple had a better tint after shaving but it took a big output loss. That’s the thing with this LED, it’s throwy without dedoming so shaving the LED just to fix the tint is not a great trade off.