Yeah, i believe you.
It just looked like that in the picture.
If I move reflector up then the beam starting to get parallel-ish but the corona starting immediately getting huge amd brighter and the hot spot also getting bigger and dimmer. Like the reflector has two parabolic curve.
I can’t explain it better. Maybe with this image help. This is with XP-L HI. The edge of reflector and the area around close to the led is in focus. But If I go farther the white area getting yellow and the yellow area near led getting white. With white flat it is more noticable.
Hmmm… Doesn’t look like it should…
Any anomaly in the optics will become very noticeable with this Flat White 1mm².
I have the same problem with a narrow beam TIR optic i wanted to use for the White Flat 1mm².
Seemed to work well with dedomed XM-L2 but it’s a messy compromise at best with this little LED…
I also wasted a lot of time on trying to get it right…
I would have expected a better reflector in your Emisar though.