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MEGA BLACK FRIDAY DEALS //POST CANADA WON'T BE USED UNTIL STRIKE IS SOLVED / Free Shipping for orders over $500* Some exceptions may apply.
MEGA BLACK FRIDAY DEALS //POST CANADA WON'T BE USED UNTIL STRIKE IS SOLVED / Free Shipping for orders over $500* Some exceptions may

Optolong

Optolong has become an integrated enterprise not only specialized in R&D, but also good at manufacturing astronomy filters and fluorescence filters and pushing them into the market.

Filters

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Optolong UV/IR CUT - Astronomy Plus Save up to $17.60 Save $0.00
$59.00 - $88.00
$59.00 - $88.00
$59.00
$47.20 - $70.40
$47.20 - $70.40
$47.20

Optolong UV/IR CUT

Optolong UV/IR CUT Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most...

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$59.00 - $88.00
$59.00 - $88.00
$59.00
$47.20 - $70.40
$47.20 - $70.40
$47.20
Save up to $17.60 Save $0.00
Optolong L-Pro Filter - Astronomy Plus
Optolong L-Pro Filter - Astronomy Plus Save up to $78.00 Save $0.00
$201.00 - $390.00
$201.00 - $390.00
$201.00
$170.85 - $312.00
$170.85 - $312.00
$170.85

Optolong L-Pro Filter

Optolong L-Pro Filter The Optolong L-Pro Filter is designed to improve the visibility of various deepsky objects. By selectively reducing the trans...

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$201.00 - $390.00
$201.00 - $390.00
$201.00
$170.85 - $312.00
$170.85 - $312.00
$170.85
Save up to $78.00 Save $0.00
Optolong L-Extreme Dual-Band Filter - Astronomy Plus
Optolong L-Extreme Dual-Band Filter - Astronomy Plus Save up to $62.55 Save $0.00
$323.00 - $417.00
$323.00 - $417.00
$323.00
$274.55 - $354.45
$274.55 - $354.45
$274.55

Optolong L-Extreme Dual-Band Filter

Optolong L-Extreme Dual-Band Astronomy NarrowBand Filter The advantage of the L-eXtreme filter is that there is no transmission between the H-beta ...

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$323.00 - $417.00
$323.00 - $417.00
$323.00
$274.55 - $354.45
$274.55 - $354.45
$274.55
Save up to $62.55 Save $0.00
Optolong L-eNhance Filter - Astronomy Plus
Optolong L-eNhance Filter - Astronomy Plus Save up to $63.00 Save $0.00
$242.00 - $350.00
$242.00 - $350.00
$242.00
$205.70 - $287.00
$205.70 - $287.00
$205.70

Optolong L-eNhance Duo Band Filter

Optolong L-eNhance Duo Band Filter The relentless spread or urbanization and its associated light pollution have become a growing problem for all a...

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$242.00 - $350.00
$242.00 - $350.00
$242.00
$205.70 - $287.00
$205.70 - $287.00
$205.70
Save up to $63.00 Save $0.00
Optolong L-Ultimate Dual-Band 3nm Filter 2” (L-ULTIMATE) - Astronomy Plus
Optolong L-Ultimate Dual-Band 3nm Filter 2” (L-ULTIMATE) - Astronomy Plus
Save up to $94.50 Save $0.00
$390.00 - $525.00
$390.00 - $525.00
$390.00
$331.50 - $430.50
$331.50 - $430.50
$331.50

Optolong L-Ultimate Dual-Band 3nm Filter

Optolong L-Ultimate Filter It’s about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae’s ...

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$390.00 - $525.00
$390.00 - $525.00
$390.00
$331.50 - $430.50
$331.50 - $430.50
$331.50
Save up to $94.50 Save $0.00
Optolong L-Quad Enhance Filter 2" Light Pollution Suppression Filter (L-QEF) - Astronomy Plus
Save $40.35 Save $0.00
$269.00
$269.00 - $269.00
$269.00
$228.65
$228.65 - $228.65
$228.65

Optolong L-Quad Enhance Filter 2" Light Pollution Suppression Filter (L-QEF)

Optolong L-Quad Enhance Filter L-Quad Enhance Filter (L-QEF) is a quad bandpass light pollution suppression filter for colour cameras. It effective...

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$269.00
$269.00 - $269.00
$269.00
$228.65
$228.65 - $228.65
$228.65
Save $40.35 Save $0.00
Optolong Clear Focusing Filter - Astronomy Plus
Save up to $8.20 Save $0.00
$32.00 - $41.00
$32.00 - $41.00
$32.00
$25.60 - $32.80
$25.60 - $32.80
$25.60

Optolong Clear Focusing Filter

Optolong Clear Focusing Filter Optolong Clear focusing filter is designed to highly pass the visible spectral region 420-680nm at 98.5% transmissio...

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$32.00 - $41.00
$32.00 - $41.00
$32.00
$25.60 - $32.80
$25.60 - $32.80
$25.60
Save up to $8.20 Save $0.00
Optolong UHC Light Pollution Filter - Astronomy Plus
$75.00 - $255.00
$75.00 - $255.00
$75.00 - $255.00
$75.00

Optolong UHC Light Pollution Filter

Optolong UHC Light Pollution Filter The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects...

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$75.00 - $255.00
$75.00 - $255.00
$75.00 - $255.00
$75.00
Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" (L-EXTREME-F2) - Astronomy Plus
Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" (L-EXTREME-F2) - Astronomy Plus
Save $62.55 Save $0.00
$417.00
$417.00 - $417.00
$417.00
$354.45
$354.45 - $354.45
$354.45

Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" (L-EXTREME-F2)

Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filt...

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$417.00
$417.00 - $417.00
$417.00
$354.45
$354.45 - $354.45
$354.45
Save $62.55 Save $0.00
Optolong Moon & Skyglow Filter - Astronomy Plus
Save up to $13.00 Save $0.00
$43.00 - $65.00
$43.00 - $65.00
$43.00
$34.40 - $52.00
$34.40 - $52.00
$34.40

Optolong Moon & Skyglow Filter

Optolong Moon & Skyglow Filter Optolong Moon & Skyglow filter is designed to darken the background sky by blocking light transmission from ...

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$43.00 - $65.00
$43.00 - $65.00
$43.00
$34.40 - $52.00
$34.40 - $52.00
$34.40
Save up to $13.00 Save $0.00
Optolong SII 6.5nm Imaging Narrowband Filter - Astronomy Plus
Save up to $61.80 Save $0.00
$215.00 - $309.00
$215.00 - $309.00
$215.00
$172.00 - $247.20
$172.00 - $247.20
$172.00

Optolong SII 6.5nm Imaging Narrowband Filter

Optolong SII 6.5nm Imaging Narrowband Filter Optolongimproved narrowband SII6.5nm filter (Sulful II for CCD) is designed for nebula observation all...

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$215.00 - $309.00
$215.00 - $309.00
$215.00
$172.00 - $247.20
$172.00 - $247.20
$172.00
Save up to $61.80 Save $0.00
Optolong SHO 3nm Narrowband Filters Kit - Astronomy Plus
Optolong SHO 3nm Narrowband Filters Kit - Astronomy Plus
Save up to $291.42 Save $0.00
$1,296.00 - $1,619.00
$1,296.00 - $1,619.00
$1,296.00
$1,062.72 - $1,327.58
$1,062.72 - $1,327.58
$1,062.72

Optolong SHO 3nm Narrowband Filters Kit

Optolong SHO 3nm Narrowband Filters Kit Optolong SHO-3nm Narrowband Filters Introduction Optolong SHO-3nm filter kit includes SII 3nm, H-Alpha 3nm,...

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$1,296.00 - $1,619.00
$1,296.00 - $1,619.00
$1,296.00
$1,062.72 - $1,327.58
$1,062.72 - $1,327.58
$1,062.72
Save up to $291.42 Save $0.00
Optolong Night Sky H-Alpha filter (IR-Pass 650nm) - Astronomy Plus
Save up to $32.20 Save $0.00
$107.00 - $161.00
$107.00 - $161.00
$107.00
$85.60 - $128.80
$85.60 - $128.80
$85.60

Optolong Night Sky H-Alpha filter (IR-Pass 650nm)

Optolong Night Sky H-Alpha filter Night Sky H-Alpha filter (IR Pass 650nm) with 50% transition from blocking to passing at about 640nm and 95% or a...

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$107.00 - $161.00
$107.00 - $161.00
$107.00
$85.60 - $128.80
$85.60 - $128.80
$85.60
Save up to $32.20 Save $0.00
Optolong ND3.0 Neutral Density Filter - Astronomy Plus
$65.17 - $105.07
$65.17 - $105.07
$65.17 - $105.07
$65.17

Optolong ND3.0 Neutral Density Filter

Optolong ND3.0 Neutral Density Filter Neutral Density (ND) filters are designed to reduce transmission evenly across a portion of a specific spectr...

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$65.17 - $105.07
$65.17 - $105.07
$65.17 - $105.07
$65.17
Optolong Narrowband H-Beta filter - Astronomy Plus
Save up to $37.60 Save $0.00
$120.00 - $188.00
$120.00 - $188.00
$120.00
$96.00 - $150.40
$96.00 - $150.40
$96.00

Optolong Narrowband H-Beta filter

Optolong Narrowband H-Beta filter Opotlong narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on...

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$120.00 - $188.00
$120.00 - $188.00
$120.00
$96.00 - $150.40
$96.00 - $150.40
$96.00
Save up to $37.60 Save $0.00
Optolong LRGB Filter Set - Astronomy Plus
Save up to $97.00 Save $0.00
$309.00 - $485.00
$309.00 - $485.00
$309.00
$247.20 - $388.00
$247.20 - $388.00
$247.20

Optolong LRGB Filter Set

Optolong LRGB Filter Set The Optolong LRGB Filter Set is designed for maximum contrast and with extremely high gradients for clear differentiation ...

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$309.00 - $485.00
$309.00 - $485.00
$309.00
$247.20 - $388.00
$247.20 - $388.00
$247.20
Save up to $97.00 Save $0.00
Optolong IR Pass685 Planetary Filter - Astronomy Plus
Save up to $31.00 Save $0.00
$107.00 - $155.00
$107.00 - $155.00
$107.00
$85.60 - $124.00
$85.60 - $124.00
$85.60

Optolong IR Pass685 Planetary Filter

Optolong IR Pass685 Planetary Filter Optolong IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging ...

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$107.00 - $155.00
$107.00 - $155.00
$107.00
$85.60 - $124.00
$85.60 - $124.00
$85.60
Save up to $31.00 Save $0.00
Optolong Improved OIII 6.5nm Narrowband Filter - Astronomy Plus
Save up to $61.80 Save $0.00
$215.00 - $309.00
$215.00 - $309.00
$215.00
$172.00 - $247.20
$172.00 - $247.20
$172.00

Optolong Improved OIII 6.5nm Narrowband Filter

Optolong Improved OIII 6.5nm Narrowband Filter Optolong improved extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing...

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$215.00 - $309.00
$215.00 - $309.00
$215.00
$172.00 - $247.20
$172.00 - $247.20
$172.00
Save up to $61.80 Save $0.00
Optolong Improved NB Filters SHO 6.5nm Narrowband Filter Kit - Astronomy Plus
$600.00 - $940.00
$600.00 - $940.00
$600.00 - $940.00
$600.00

Optolong Improved NB Filters SHO 6.5nm Narrowband Filter Kit

Optolong NB Filters SHO 6.5nm Narrowband Filter Kit Optolong SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, ...

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$600.00 - $940.00
$600.00 - $940.00
$600.00 - $940.00
$600.00
Optolong H-Alpha 7nm Narrowband Filter - Astronomy Plus
Save up to $61.80 Save $0.00
$215.00 - $309.00
$215.00 - $309.00
$215.00
$172.00 - $247.20
$172.00 - $247.20
$172.00

Optolong H-Alpha 7nm Narrowband Filter

Optolong H-Alpha 7nm Narrowband Filter Optolong improved version of H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of l...

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$215.00 - $309.00
$215.00 - $309.00
$215.00
$172.00 - $247.20
$172.00 - $247.20
$172.00
Save up to $61.80 Save $0.00
Optolong CLS-CCD(City Light Suppression) Broadband Filter - Astronomy Plus
Save up to $43.00 Save $0.00
$128.00 - $215.00
$128.00 - $215.00
$128.00
$102.40 - $172.00
$102.40 - $172.00
$102.40

Optolong CLS-CCD(City Light Suppression) Broadband Filter

Optolong CLS CCD (City Light Suppression) Broadband Filter The CLS (City Light Suppression) broadband filter is designed to improve the visibility ...

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$128.00 - $215.00
$128.00 - $215.00
$128.00
$102.40 - $172.00
$102.40 - $172.00
$102.40
Save up to $43.00 Save $0.00
Optolong CLS(City Light Suppression) Broadband Filter - Astronomy Plus
Save up to $51.00 Save $0.00
$74.00 - $255.00
$74.00 - $255.00
$74.00
$59.20 - $204.00
$59.20 - $204.00
$59.20

Optolong CLS(City Light Suppression) Broadband Filter

Optolong CLS (City Light Suppression) Broadband Filter 1.  Optolong CLS Introduction The CLS (City Light Suppression) broadband filter is designed ...

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$74.00 - $255.00
$74.00 - $255.00
$74.00
$59.20 - $204.00
$59.20 - $204.00
$59.20
Save up to $51.00 Save $0.00
Optolong Clear Sky Filter Screw on Lens - Astronomy Plus
Save up to $55.40 Save $0.00
$223.00 - $277.00
$223.00 - $277.00
$223.00
$178.40 - $221.60
$178.40 - $221.60
$178.40

Optolong Clear Sky Filter Screw on Lens

Optolong Clear Sky Filter Screw on Lens 1. Optolong Clear Sky Filter Introduction A screw on filter with the easiest installation way like UV fi...

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$223.00 - $277.00
$223.00 - $277.00
$223.00
$178.40 - $221.60
$178.40 - $221.60
$178.40
Save up to $55.40 Save $0.00
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