BanglaBob,
Yeah those bluish tint are irritating. Nevermind I am not going to purchase anymore zoomies until someone has came out a really nice quality one or one with BIG lens.
Lothar,
You may read DrJones very detail explanation here .
It’s a common misunderstanding that the beam angle of a dedomed LED would become wider and more photon hitting onto the reflector resulting more throw, in fact it is not at all because this doesn’t explain why dedoming works with aspherical lens as well. It’s some kind of internal reflection caused by the dedoming that makes the luminance (aka surface brightness) of the die much higher. It has similar effect with the Wavien Collar.