Light Pollution Filters

Greets,

I am in a large So. California suburb area where light pollution
rules. It's probably not as bad as Washington DC but you can rarely
see the Milky Way around here. Last night, I could't even see the M42
nebula, though this was more due to the moon than city lights.

Will these light pollution filters make a huge difference? These
things cost from $60-100, so it's one purchase of a piece of glass
that I can't take lightly. As a photographer, I have a passel of
filters. Are there any that might perform the work of a light
pollution filter to an extent? IOW, I would rather use something I
already have rather than buy a glorified skylight ;-)

Anyone in the So. Cal metropolis using one of these filters? There
are H-Beta, O-III, broad band, narrow band, and I'm sure more. $100
would pay for several trips to the desert, but if these filters are
really effective, then I'd be all for it.

Thanks,
Matt