I need help focusing dedomed xpg2

likevvii

Newly Enlightened
Joined
Jun 21, 2014
Messages
9
I can perfectly focus all my domed LEDs, but the dedomed ones always leave blue/orangeish squares/lines around the hotspot!
it kinda looks like this: (DEDOMED)
cf328962d1.jpg

I am not able to post beamshots because my phone camera just registers everything as a white dot.

the domed ones look nice and perfect like this: (DOMED)
22a3c86a72.jpg




Emitter in question: xpg2
Lens used: 44mm Aspheric
I also covered around the emitter with black tape, I did not cover the metal around it however. In addition, the host holding the lens also has black tape, so there are minimal internal reflections.
 

likevvii

Newly Enlightened
Joined
Jun 21, 2014
Messages
9
I found out the problem. It turns out my 44mm aspheric, glass lens is BAD QUALITY. (Don't buy the $2.50USD 44mm glass lens on ebay!!!)
 

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