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LRGB - which brand?
All of these claim to be parfocal, but the prices vary quite a bit. Is there a reason for this besides brand name, or are the effectively equivalent?
I can see some slight variations in bandpass between brands. I'm using an APO refractor, so I'll need to block the part of the IR spectrum that causes bloat with refractors, but I'm not sure where in the spectrum that is. Can anyone please advise?
Prostar: $195 (CLRGB)
Orion: $225 (LRGB)
Astronomik: $341.10 (LRGB)
Baader: $425 (LRGB)
Sometimes you get what you pay for, but sometimes what you pay for is merely branding. I'm happy to pay for the Astronomik filters if there's going to be a meaningful difference, but I'd rather keep it in my pocket if there's no significant difference.
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