Optical Accessories
Filters
- Antlia (20)
- APM (32)
- Askar (16)
- Astrodon (2)
- Baader Planetarium (104)
- Celestron (61)
- Chroma (35)
- David Astro (11)
- Daystar Filters (1)
- Explore Scientific (60)
- Lumicon (1)
- Lunt Solar Systems (9)
- Optolong (8)
- QHYCCD (1)
- SBIG (2)
- SharpStar Optics (8)
- Sky-Watcher (10)
- Starizona (2)
- Starlight Instruments (2)
- TS-Optics (6)
- William Optics (22)
- ZWO (17)
-
Original price $430.00 USDOriginal price $430.00 USD - Original price $430.00 USDOriginal price $430.00 USDCurrent price $408.50 USD$408.50 USD - $408.50 USDCurrent price $408.50 USD| /
Antlia 2.8nm Narrowband H-alpha Ultra Filter
ANT-HA-2.8NM-RD361 in stockAntlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 2.8nm bandpass. As the bandwidth becomes narrower, the 2.8nm ...
View full detailsOriginal price $430.00 USDOriginal price $430.00 USD - Original price $430.00 USDOriginal price $430.00 USDCurrent price $408.50 USD$408.50 USD - $408.50 USDCurrent price $408.50 USD| /Save 5% Save % -
Original price $430.00 USDOriginal price $430.00 USD - Original price $430.00 USDOriginal price $430.00 USDCurrent price $408.50 USD$408.50 USD - $408.50 USDCurrent price $408.50 USD| /
Antlia 2.8nm Narrowband OIII Ultra Filter
ANT-OIII-2.8NM-RD361 in stockAntlia OIII Ultra narrowband filter optimizes the FWHM (full width half maximum) to 2.8nm bandpass. As the bandwidth becomes narrower, the 2.8nm U...
View full detailsOriginal price $430.00 USDOriginal price $430.00 USD - Original price $430.00 USDOriginal price $430.00 USDCurrent price $408.50 USD$408.50 USD - $408.50 USDCurrent price $408.50 USD| /Save 5% Save % -
Original price $430.00 USDOriginal price $430.00 USD - Original price $430.00 USDOriginal price $430.00 USDCurrent price $408.50 USD$408.50 USD - $408.50 USDCurrent price $408.50 USD| /
Antlia 2.8nm Narrowband SII Ultra Filter
ANT-SII-2.8NM-RD361 in stockAntlia SII Ultra narrowband filter optimizes the FWHM (full width half maximum) to 2.8nm bandpass. As the bandwidth becomes narrower, the 2.8nm Ul...
View full detailsOriginal price $430.00 USDOriginal price $430.00 USD - Original price $430.00 USDOriginal price $430.00 USDCurrent price $408.50 USD$408.50 USD - $408.50 USDCurrent price $408.50 USD| /Save 5% Save % -
Original price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD$242.25 USD - $465.50 USD$242.25 USD - $465.50 USDCurrent price $242.25 USD| /
Antlia 3nm Narrowband H-alpha Pro Filter
Options available5 variants in stock656.3nm H-alpha Central Wavelength Small 3nm FHWM High >88% Peak Transmission Minimized halos on bright stars Description Specificat...
View full detailsOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD$242.25 USD - $465.50 USD$242.25 USD - $465.50 USDCurrent price $242.25 USD| /Save up to 5% Save % -
Original price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD$242.25 USD - $465.50 USD$242.25 USD - $465.50 USDCurrent price $242.25 USD| /
Antlia 3nm Narrowband OIII Pro Filter
Options available4 variants in stockAntlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nmbandpass. As the bandwidth becomes narrower, the 3nm Pro narro...
View full detailsOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD$242.25 USD - $465.50 USD$242.25 USD - $465.50 USDCurrent price $242.25 USD| /Save up to 5% Save % -
Original price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD$242.25 USD - $465.50 USD$242.25 USD - $465.50 USDCurrent price $242.25 USD| /
Antlia 3nm Narrowband SII Pro Filter
Options available3 variants in stockAntlia SII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narro...
View full detailsOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD - Original price $490.00 USDOriginal price $255.00 USD$242.25 USD - $465.50 USD$242.25 USD - $465.50 USDCurrent price $242.25 USD| /Save up to 5% Save % -
Original price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD$175.75 USD - $332.50 USD$175.75 USD - $332.50 USDCurrent price $175.75 USD| /
Antlia 4.5nm Narrowband H-alpha Edge Filter
Options available2 variants in stockAntlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on ...
View full detailsOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD$175.75 USD - $332.50 USD$175.75 USD - $332.50 USDCurrent price $175.75 USD| /Save up to 5% Save % -
Original price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD$175.75 USD - $332.50 USD$175.75 USD - $332.50 USDCurrent price $175.75 USD| /
Antlia 4.5nm Narrowband OIII Edge Filter
Options available3 variants in stockAntlia OIII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unw...
View full detailsOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD$175.75 USD - $332.50 USD$175.75 USD - $332.50 USDCurrent price $175.75 USD| /Save up to 5% Save % -
Original price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD$175.75 USD - $332.50 USD$175.75 USD - $332.50 USDCurrent price $175.75 USD| /
Antlia 4.5nm Narrowband SII Edge Filter
Options available4 variants in stockAntlia SII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwa...
View full detailsOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD - Original price $350.00 USDOriginal price $185.00 USD$175.75 USD - $332.50 USD$175.75 USD - $332.50 USDCurrent price $175.75 USD| /Save up to 5% Save % -
Original price $690.00 USDOriginal price $690.00 USD - Original price $690.00 USDOriginal price $690.00 USDCurrent price $655.50 USD$655.50 USD - $655.50 USDCurrent price $655.50 USD| /
Antlia ALP-T Dualband 5nm Ha/OIII and SII/Hb Filter Set - 2"
ANT-ALP-T-SETOriginal price $690.00 USDOriginal price $690.00 USD - Original price $690.00 USDOriginal price $690.00 USDCurrent price $655.50 USD$655.50 USD - $655.50 USDCurrent price $655.50 USD| /Save 5% Save % -
Original price $380.00 USDOriginal price $380.00 USD - Original price $380.00 USDOriginal price $380.00 USDCurrent price $361.00 USD$361.00 USD - $361.00 USDCurrent price $361.00 USD| /
Antlia ALP-T Dualband 5nm Ha/OIII Filter
ANT-ALP-T-23 in stockThe Antlia ALP-T dual band 5nm Ha&OIII filter is a dual line-pass filter which was designed to be used primarily with one-shot color (OSC) cam...
View full detailsOriginal price $380.00 USDOriginal price $380.00 USD - Original price $380.00 USDOriginal price $380.00 USDCurrent price $361.00 USD$361.00 USD - $361.00 USDCurrent price $361.00 USD| /Save 5% Save % -
Original price $380.00 USDOriginal price $380.00 USD - Original price $380.00 USDOriginal price $380.00 USDCurrent price $361.00 USD$361.00 USD - $361.00 USDCurrent price $361.00 USD| /
Antlia ALP-T Dualband 5nm Ha/OIII Highspeed Filter
ANT-ALP-T-HS-2ALP-T Dual Band 5nm Highspeed Filters are further optimized to work with high-speed imaging systems by shifting slightly the passband and center w...
View full detailsOriginal price $380.00 USDOriginal price $380.00 USD - Original price $380.00 USDOriginal price $380.00 USDCurrent price $361.00 USD$361.00 USD - $361.00 USDCurrent price $361.00 USD| /Save 5% Save % -
Original price $350.00 USDOriginal price $350.00 USD - Original price $350.00 USDOriginal price $350.00 USDCurrent price $332.50 USD$332.50 USD - $332.50 USDCurrent price $332.50 USD| /
Antlia ALP-T Dualband 5nm SII/Hb Filter
ANT-ALP-T-SII-HB-2The ALP-T dual band 5nm SII&Hb filter is a dual line-pass filter, which lets the deep red Sulfur-II line and the blue Hydrogen-Beta line throu...
View full detailsOriginal price $350.00 USDOriginal price $350.00 USD - Original price $350.00 USDOriginal price $350.00 USDCurrent price $332.50 USD$332.50 USD - $332.50 USDCurrent price $332.50 USD| /Save 5% Save % -
Original price $99.00 USDOriginal price $99.00 USD - Original price $99.00 USDOriginal price $99.00 USDCurrent price $94.05 USD$94.05 USD - $94.05 USDCurrent price $94.05 USD| /
Antlia H-beta and OIII Visual Filter - 1.25"
ANT-HB-OIII-1.251 in stock5.0 / 5.0
1 Review
Antlia HB-OIII filter is engineered specifically for night visual nebulae observation at a high contrast and Deep-sky astrophotography. Its transm...
View full detailsOriginal price $99.00 USDOriginal price $99.00 USD - Original price $99.00 USDOriginal price $99.00 USDCurrent price $94.05 USD$94.05 USD - $94.05 USDCurrent price $94.05 USD| /Save 5% Save % -
Original price $39.00 USDOriginal price $39.00 USD - Original price $39.00 USDOriginal price $39.00 USDCurrent price $37.05 USD$37.05 USD - $37.05 USDCurrent price $37.05 USD| /
Antlia IR Pass 685nm Filter - 1.25"
ANT-IR685The Antlia IR Pass 685nm filter is an absorptive filter that allows infrared light with wavelengths of more than 685nm to pass through. At these l...
View full detailsOriginal price $39.00 USDOriginal price $39.00 USD - Original price $39.00 USDOriginal price $39.00 USDCurrent price $37.05 USD$37.05 USD - $37.05 USDCurrent price $37.05 USD| /Save 5% Save % -
Original price $39.00 USDOriginal price $39.00 USD - Original price $39.00 USDOriginal price $39.00 USDCurrent price $37.05 USD$37.05 USD - $37.05 USDCurrent price $37.05 USD| /
Antlia IR Pass 850nm Filter - 1.25"
ANT-IR8502 in stockThe Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of more than 850nm to pass through. It is a su...
View full detailsOriginal price $39.00 USDOriginal price $39.00 USD - Original price $39.00 USDOriginal price $39.00 USDCurrent price $37.05 USD$37.05 USD - $37.05 USDCurrent price $37.05 USD| /Save 5% Save % -
Original price $300.00 USD - Original price $600.00 USDOriginal price $300.00 USD - Original price $600.00 USDOriginal price $300.00 USD$285.00 USD - $570.00 USD$285.00 USD - $570.00 USDCurrent price $285.00 USD| /
Antlia LRGB-V Pro Filter Set
Options available4 variants in stockThe Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF/KAI senso...
View full detailsOriginal price $300.00 USD - Original price $600.00 USDOriginal price $300.00 USD - Original price $600.00 USDOriginal price $300.00 USD$285.00 USD - $570.00 USD$285.00 USD - $570.00 USDCurrent price $285.00 USD| /Save up to 5% Save % -
Original price $198.00 USDOriginal price $198.00 USD - Original price $198.00 USDOriginal price $198.00 USDCurrent price $188.10 USD$188.10 USD - $188.10 USDCurrent price $188.10 USD| /
Antlia Quad Band Light Pollution Filter - 2"
ANT-QUAD-2The Antlia Quad Band Anti-Light Pollution Filter is a light suppression filter for color and monochrome cameras. It is able to shoot most deep sky...
View full detailsOriginal price $198.00 USDOriginal price $198.00 USD - Original price $198.00 USDOriginal price $198.00 USDCurrent price $188.10 USD$188.10 USD - $188.10 USDCurrent price $188.10 USD| /Save 5% Save % -
Original price $179.00 USDOriginal price $179.00 USD - Original price $179.00 USDOriginal price $179.00 USDCurrent price $170.05 USD$170.05 USD - $170.05 USDCurrent price $170.05 USD| /
Antlia Triband RGB Ultra Filter
ANT-TRI-RGB-25.0 / 5.0
2 Reviews
It is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most substantial information in the RGB b...
View full detailsOriginal price $179.00 USDOriginal price $179.00 USD - Original price $179.00 USDOriginal price $179.00 USDCurrent price $170.05 USD$170.05 USD - $170.05 USDCurrent price $170.05 USD| /Save 5% Save % -
Original price $199.00 USDOriginal price $199.00 USD - Original price $199.00 USDOriginal price $199.00 USDCurrent price $189.05 USD$189.05 USD - $189.05 USDCurrent price $189.05 USD| /
Antlia U-Venus Filter - 1.25"
ANT-UVENUS1 in stockAntlia Venus-U filter is designed for imaging the cloud structure of Venus and Jupiter with CCD cameras on a telescope. Cloud details primarily re...
View full detailsOriginal price $199.00 USDOriginal price $199.00 USD - Original price $199.00 USDOriginal price $199.00 USDCurrent price $189.05 USD$189.05 USD - $189.05 USDCurrent price $189.05 USD| /Save 5% Save % -
Original price $96.00 USD - Original price $96.00 USDOriginal price$96.00 USD$96.00 USD - $96.00 USDCurrent price $96.00 USD| /
APM 1.5x/2x/2.7x ED Barlow Lens - 2"
APM-Barlow2This is the 2" counterpart of our famed 1.25", 2x/1.5x Barlow lens. It is well made both in design and craftmanship. Both lenses are fully multicoa...
View full detailsOriginal price $96.00 USD - Original price $96.00 USDOriginal price$96.00 USD$96.00 USD - $96.00 USDCurrent price $96.00 USD| / -
Original price $44.00 USD - Original price $44.00 USDOriginal price$44.00 USD$44.00 USD - $44.00 USDCurrent price $44.00 USD| /
APM 55° 24mm Reticle Eyepiece - 1.25"
APM-FIND-E24Crosshair eyepiece 24 mm 55° - 1.25" barrel... high quality crosshair eyepiece with comfortable viewing positionA versatile and reasonable priced c...
View full detailsOriginal price $44.00 USD - Original price $44.00 USDOriginal price$44.00 USD$44.00 USD - $44.00 USDCurrent price $44.00 USD| / -
Original price $426.00 USD - Original price $426.00 USDOriginal price$426.00 USD$426.00 USD - $426.00 USDCurrent price $426.00 USD| /
APM 7.7mm to 15.4mm Super Zoom Eyepiece - 1.25"/2"
APM-Zoom7.7-15.4-1255.0 / 5.0
1 Review
Our APM Super-Zoom eyepiece is a modern new development for universal use during the day and in the night sky. Great emphasis was placed on excelle...
View full detailsOriginal price $426.00 USD - Original price $426.00 USDOriginal price$426.00 USD$426.00 USD - $426.00 USDCurrent price $426.00 USD| / -
Original price $107.00 USD - Original price $107.00 USDOriginal price$107.00 USD$107.00 USD - $107.00 USDCurrent price $107.00 USD| /
APM 70° 20mm Reticle Eyepiece - 1.25"
APM-FIND-E20Reticle eyepiece 20 mm 70° - 1.25" barrelWide Angle Erfle eyepiece with fine, illuminatable crosshair.Together with our APM Finders you will get a ...
View full detailsOriginal price $107.00 USD - Original price $107.00 USDOriginal price$107.00 USD$107.00 USD - $107.00 USDCurrent price $107.00 USD| /