Meade Series 4000 Narrowband Meade Nebular Filters:
A remarkable advance for the serious
visual observer of emission nebulae.
Meade Narrowband Filters #908 N zero-in on the
three most important visible wavelengths emitted by deep-space emission nebulae:
the two spectral lines of Oxygen III at 496 and 501nm and the Hydrogen Beta line
at 486nm. Virtually all unwanted city light emissions are rejected by factors of
Because of its narrow bandpass characteristics, the
Meade Narrowband Nebular Filter achieves striking levels of
contrast between the nebula itself and the surrounding
dark-sky environment: objects such as the Orion Nebula
(M42), the Lagoon
Nebula (M8), and the
Omega Nebula (M17)
are observed as they
would normally appear
inches larger aperture.
outer extensions of
these objects now become
often to the point where the visible mass of the
nebula is more than doubled in diameter. Planetary
nebulae such as the Ring Nebula (M57), the Dumbbell
Nebula (M27), and the Saturn Nebula (NGC 7009) similarly
display dramatically-heightened levels of contrast and
observable detail. Faint, insignificant patches of nebulosity
that heretofore were near the limit of observability are now
viewed with ease.
Two models of Narrowband Nebular Meade Filters are available:
Meade Series 4000 Broadband Nebular Filter #908N (item 07525):
Threads into the barrels of all Meade 1.25" eyepieces and most other 1.25"
# 908-N filter's Clear aperture: 26mm.
Features of Meade Series 4000 Narrowband Nebular Filters 908
- Narrow bandpass characteristics
- Virtually all unwanted city light emissions are
rejected by factors of 99.9+%
- Striking levels of contrast between the nebula itself and the surrounding dark-sky environment
- Meade Series 4000 Narrowband Nebular Filter