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- Astrodon Photometrics - Sloan Filters (8)
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Filters by Size
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TO - LP-4 H-Beta (Red Cell) 2"
LP-4 H-Beta (Red Cell) 2" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
Model#: LP4-2
$179.00 -
TO - LP-3 OIII (Green Cell) 2"
LP-3 OIII (Green Cell) 2" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
Model#: LP3-2
$179.00 -
TO - LP-2 Narrowband (Blue Cell) 2"
LP-2 Narrowband (Blue Cell) 2" FilterEnhance your deep sky viewing with the latest in multi-layer coating technology. Thousand Oaks filters transmit desired wave-lengths in a very steep slope rather than ... Learn More
Model#: LP2-2
$179.00 -
TO - LP-1 Broadband (Black Cell) 2"
Enhanced deep sky viewing with the latest in multi ... Learn More
Model#: LP1-2
$149.00 -
TeleVue - UHC Bandmate Filter 1.25"
All Tele Vue filters are individually inspected for cosmetic and optical properties, as well as being serialized.
The NebuStar Filter is a great general purpose filter for all nebulae observation. Red-blocking properties permit brighter & sharper star images.
... Learn MoreModel#: BFH-0125
$175.00 -
TeleVue - OIII Bandmate Filter 1.25"
This OIII filter particularly enhances planetary nebulae in larger telescopes Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images ... Learn More
Model#: BFO-0125
$175.00 -
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Lumicon - Night Sky H-Alpha Filter 2"
Lumicon's Night Sky Hydrogen-Alpha Filters are long-pass filters with a 50% transition from blocking to passing at about 640nm. At wavelengths longer than 650nm, transmittance is 90% or above
... Learn MoreModel#: LF3090
Regular Price: $168.00
Special Price: $119.95
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Lumicon - 2" Lunar & Planetary Filter Set (4)
The Lumicon 2" Lunar & Planetary Filter Set, LF5050, is an excellent, general-purpose set of four (4) of Lumicon's most popular 2" lunar and planetary filters
... Learn MoreModel#: LF5050
$104.95 -
Lumicon - 2" Infrared Filter
Lumicon Minus Violet and Infrared Blocking Filters are used primarily to "bracket" the color-corrected band of refracting telescopes.
... Learn MoreModel#: LF3145
Regular Price: $168.00
Special Price: $119.95
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Lumicon - 1.25" Oxygen III Filter
The legendary Lumicon 1.25in OIII narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm lines) emitted by diffuse, planetary and extremely faint nebulae.
... Learn MoreModel#: LF3040
Regular Price: $168.00
Special Price: $119.95
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Lumicon - 1.25" Hydrogen - Beta Filter
Also known as the Horsehead Nebula filter, the Lumicon 1.25in Hydrogen-Beta Filter isolates only the hydrogen-beta line of the spectrum (486nm) in a narrow pass-band just 9 nm wide, providing maximum contrast ... Learn More
Model#: LF3055
Regular Price: $168.00
Special Price: $119.95
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Lumicon - 1.25" Deep Sky Filter
The 1.25in Deep Sky is Lumicon's most popular nebula filter. It blocks all high & low pressure mercury and sodium vapor lamp light, neon lights and airglow, while transmitting the rest of the visible spectrum.
... Learn MoreModel#: LF3010
Regular Price: $168.00
Special Price: $119.95
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Lumicon - 1.25" Comet Filter
The Lumicon 1.25" Comet Filter, a narrow band-pass filter (25nm), isolates the 501nm OIII line and both C2 lines at 511nm and 514nm.
... Learn MoreModel#: LF3070
Regular Price: $168.00
Special Price: $119.95
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Lumicon - 1.25" Ultra High Contrast Filter
... Learn More
Model#: LF3025
Regular Price: $168.00
Special Price: $119.95
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Levenhuk - 2" Ra H-Beta Filter
Levenhuk Ra H-Beta 2'' filter is used for observations of deep-sky objects, such as emission nebulae (H II) and others.
... Learn MoreModel#: 35438
$119.95 -
FLI - Research Grade 50mm Diameter Clear
RG 50D CFLI Research Grade filter sets are par focal to F4.5Size: 50 mm +0.2 / -0.5mmShape: roundThickness: 3mm +/-0 ... Learn More
Model#: RG 50D C
$120.00 -
Baader Planetarium - UV / IR Cut / L-Filter 50x50mm (3mm glass thickness) Square
Baader Planetarium has introduced the world's finest UV/IR cut filter. This filter is a must for all digital imaging with Digital Cameras, CCD Cameras, and modified WebCams ... Learn More
Model#: FUVIR-SQ50
$169.00 -
Baader Planetarium - UV / IR Cut / L-Filter 50.4mm (3mm glass thickness) Round
Baader Planetarium has introduced the world's finest UV/IR cut filter. This filter is a must for all digital imaging with Digital Cameras, CCD Cameras, and modified WebCams ... Learn More
Model#: FUVIR-RD50
$137.00
