- Jun 14, 2017
I’d say it’s normal. Probably a left over aberration from the diode guts collimated into the spot. I have a couple G8 lenses. One in front of a PLTB450B, and it casts something similar. Hell, I have a G7 in front of an A140. Has extra bits in it, too. When focusing the lens in and out, does the artifact go wide to narrow on the same axis? That’ll be the diode. You’re probably good.