Hmmm, Omega Optical apparently makes filters for other brands, big ticket brands. It could be that their OIII/Hb is one of those. After all, they have the capacity to produce their own premium in with their DGM line, a cut price 'home brand' just covers the lower end.
Either way, I'm happy with the performance of the OIII/Hb filter of theirs. Performs differently from the NPB I have, like an OIII would.
If premium prices are out of reach, or not important to one, the more modestly priced filters will still do a good job. You won't be looking into soup if that's what worries. But, I do think being properly informed is most important, regardless of one's ultimate choice. Picked up a couple of things too myself,
