Optolong is located in Kunming, Yunnan Province, and was founded in 1999. After 18 years of development, a product range has been created, consisting mainly of astronomical fluorescence filters: filters and bandpass filters, complimented by ultraviolet and infrared filters, together with other optical filters. The company currently employs almost 60 members of staff and the factory space occupies more than 2,000 ㎡. With high-quality products, an extensive range and reasonable prices, Optolong is a reliable partner for astronomical filters.
![Optolong Filters UHC Filter 1,25](/Produktbilder/normal/67543_1/Optolong-Filters-UHC-Filter-1-25.jpg)
Optolong
Filters UHC Filter 1,25
( 5 / 5 )
$ 86.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Canon EOS APS-C OWB](/imgd516235/products/product_placeholder_300x300.png)
Optolong
Filters Clip Filter for Canon EOS APS-C OWB
$ 96.00
ready for shipping in 24
h
![Optolong Filters L-Pro 1.25''](/Produktbilder/normal/59433_1/Optolong-Filters-L-Pro-1-25-.jpg)
Optolong
Filters L-Pro 1.25''
Our price:
RRP:
$ 172.00
$ 140.00
ready for shipping in 24
h
![Optolong Filters L-Pro 2''](/Produktbilder/normal/59435_1/Optolong-Filters-L-Pro-2-.jpg)
Optolong
Filters L-Pro 2''
( 5 / 5 )
RRP:
$ 226.00
Our price:
RRP:
$ 226.00
$ 194.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Canon EOS APS-C CLS](/Produktbilder/normal/59442_1/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS.jpg)
Optolong
Filters Clip Filter for Canon EOS APS-C CLS
Our price:
RRP:
$ 107.00
$ 86.00
ready for shipping in 24
h
![Optolong Filters SII Filter 1.25"](/Produktbilder/normal/67555_1/Optolong-Filters-SII-Filter-1-25-.jpg)
Optolong
Filters SII Filter 1.25"
$ 156.00
ready for shipping in 24
h
![Optolong Filters Clear Sky Filter 82mm](/Produktbilder/normal/69501_3/Optolong-Filters-Clear-Sky-Filter-82mm.jpg)
Optolong
Filters Clear Sky Filter 82mm
$ 237.00
ready for shipping in 3-5
weeks
![Optolong Filters LRGB Filter-Set 1,25](/Produktbilder/normal/67533_1/Optolong-Filters-LRGB-Filter-Set-1-25.jpg)
Optolong
Filters LRGB Filter-Set 1,25
Our price:
RRP:
$ 265.00
$ 226.00
ready for shipping in 24
h
![Optolong Filters Filter L-eNhance 1.25](/Produktbilder/normal/65041_1/Optolong-Filters-Filter-L-eNhance-1-25.jpg)
Optolong
Filters Filter L-eNhance 1.25
Our price:
RRP:
$ 204.00
$ 189.00
ready for shipping in 24
h
![Optolong Filters LRGB Filter-Set 2"](/Produktbilder/normal/67533_1/Optolong-Filters-LRGB-Filter-Set-2-.jpg)
Optolong
Filters LRGB Filter-Set 2"
Our price:
RRP:
$ 398.00
$ 345.00
ready for shipping in 24
h
![Optolong Filters Venus U-Filter 2''](/Produktbilder/normal/59436_2/Optolong-Filters-Venus-U-Filter-2-.jpg)
Optolong
Filters Venus U-Filter 2''
$ 280.00
ready for shipping in 24
h
![Optolong Filters Clear Sky Filter 77mm](/Produktbilder/normal/67558_2/Optolong-Filters-Clear-Sky-Filter-77mm.jpg)
Optolong
Filters Clear Sky Filter 77mm
$ 183.00
ready for shipping in 24
h
![Optolong Filters SII Filter 2"](/Produktbilder/normal/67555_1/Optolong-Filters-SII-Filter-2-.jpg)
Optolong
Filters SII Filter 2"
Our price:
RRP:
$ 258.00
$ 247.00
ready for shipping in 24
h
![Optolong Filters L-eXtreme 1,25"](/Produktbilder/normal/66894_1/Optolong-Filters-L-eXtreme-1-25-.jpg)
Optolong
Filters L-eXtreme 1,25"
$ 269.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Canon EOS FF UHC](/Produktbilder/normal/59448_1/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg)
Optolong
Filters Clip Filter for Canon EOS FF UHC
Our price:
RRP:
$ 140.00
$ 104.00
ready for shipping in 3-5
weeks
![Optolong Filters Clip Filter for Canon EOS APS-C H-Alpha](/Produktbilder/normal/59444_2/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-H-Alpha.jpg)
Optolong
Filters Clip Filter for Canon EOS APS-C H-Alpha
Our price:
RRP:
$ 247.00
$ 209.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Canon EOS APS-C L-Pro](/Produktbilder/normal/59440_1/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-L-Pro.jpg)
Optolong
Filters Clip Filter for Canon EOS APS-C L-Pro
Our price:
RRP:
$ 280.00
$ 237.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Nikon Full Frame L-Pro](/Produktbilder/normal/59454_1/Optolong-Filters-Clip-Filter-for-Nikon-Full-Frame-L-Pro.jpg)
Optolong
Filters Clip Filter for Nikon Full Frame L-Pro
( 1 / 5 )
RRP:
$ 301.00
Our price:
RRP:
$ 301.00
$ 257.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Canon EOS FF L-Pro](/Produktbilder/normal/59446_1/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-L-Pro.jpg)
Optolong
Filters Clip Filter for Canon EOS FF L-Pro
( 5 / 5 )
RRP:
$ 377.00
Our price:
RRP:
$ 377.00
$ 257.00
ready for shipping in 24
h
![Optolong Filters Clip Filter for Canon EOS APS-C CLS-CCD](/Produktbilder/normal/59443_1/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS-CCD.jpg)
Optolong
Filters Clip Filter for Canon EOS APS-C CLS-CCD
Our price:
RRP:
$ 140.00
$ 104.00
ready for shipping in 24
h
![Optolong Filters L-Ultimate 2"](/Produktbilder/normal/76371_1/Optolong-Filters-L-Ultimate-2-.jpg)
Optolong
Filters L-Ultimate 2"
Our price:
RRP:
$ 431.00
$ 416.00
ready for shipping in 24
h
![Optolong Filters L-Ultimate 1,25"](/Produktbilder/normal/79624_1/Optolong-Filters-L-Ultimate-1-25-.jpg)
Optolong
Filters L-Ultimate 1,25"
$ 280.00
ready for shipping in 24
h
![Optolong Filters L-Quad Enhance 2"](/Produktbilder/normal/80320_1/Optolong-Filters-L-Quad-Enhance-2-.jpg)
Optolong
Filters L-Quad Enhance 2"
$ 258.00
ready for shipping in 3-5
weeks
![Optolong Filters L-Pro Filter 77mm](/Produktbilder/normal/73946_5/Optolong-Filters-L-Pro-Filter-77mm.jpg)
Optolong
Filters L-Pro Filter 77mm
Our price:
RRP:
$ 388.00
$ 310.00
ready for shipping in 24
h
![Optolong Filters Clear Focusing 2"](/Produktbilder/normal/80886_1/Optolong-Filters-Clear-Focusing-2-.jpg)
Optolong
Filters Clear Focusing 2"
$ 75.00
ready for shipping in 24
h
![Optolong Filters Planetary Filter Set 2"](/Produktbilder/normal/75327_2/Optolong-Filters-Planetary-Filter-Set-2-.jpg)
Optolong
Filters Planetary Filter Set 2"
$ 431.00
ready for shipping in 3-5
weeks
![Optolong Filters Planetary Filter Set 1.25"](/Produktbilder/normal/75326_1/Optolong-Filters-Planetary-Filter-Set-1-25-.jpg)
Optolong
Filters Planetary Filter Set 1.25"
$ 291.00
ready for shipping in 3-5
weeks
![Optolong Filters H-alpha 7nm 2"](/Produktbilder/normal/83198_1/Optolong-Filters-H-alpha-7nm-2-.jpg)
Optolong
Filters H-alpha 7nm 2"
$ 202.00
ready for shipping in 3-7
days
![Optolong Filters L-Pro Clip Sony Full Frame V2](/Produktbilder/normal/79800_1/Optolong-Filters-L-Pro-Clip-Sony-Full-Frame-V2.jpg)
Optolong
Filters L-Pro Clip Sony Full Frame V2
$ 258.00
ready for shipping in 3-5
weeks
![Optolong Filters SHO Filter Kit 3nm 2"](/Produktbilder/normal/73684_1/Optolong-Filters-SHO-Filter-Kit-3nm-2-.jpg)
Optolong
Filters SHO Filter Kit 3nm 2"
$ 1,390.00
ready for shipping in 3-5
weeks
![Optolong Filters L-eXtreme F2 (2")](/Produktbilder/normal/80191_1/Optolong-Filters-L-eXtreme-F2-2-.jpg)
Optolong
Filters L-eXtreme F2 (2")
$ 377.00
ready for shipping in 3-5
weeks
![Optolong Filters H-alpha 3nm 2"](/Produktbilder/normal/73721_1/Optolong-Filters-H-alpha-3nm-2-.jpg)
Optolong
Filters H-alpha 3nm 2"
$ 485.00
ready for shipping in 24
h
![Optolong Filters H-alpha 7nm 1.25"](/Produktbilder/normal/83198_1/Optolong-Filters-H-alpha-7nm-1-25-.jpg)
Optolong
Filters H-alpha 7nm 1.25"
Our price:
RRP:
$ 189.00
$ 161.00
ready for shipping in 24
h
![Optolong LRGB-Filterset 31mm (ungefasst)](/Produktbilder/normal/82629_1/Optolong-LRGB-Filterset-31mm-ungefasst-.jpg)
Optolong
LRGB-Filterset 31mm (ungefasst)
$ 245.00
ready for shipping in 3-5
weeks
![Optolong Filters SII 3nm 2"](/Produktbilder/normal/73723_1/Optolong-Filters-SII-3nm-2-.jpg)
Optolong
Filters SII 3nm 2"
$ 970.00
ready for shipping in 24
h
![Optolong Filters Clear Focusing 1,25"](/Produktbilder/normal/80886_1/Optolong-Filters-Clear-Focusing-1-25-.jpg)
Optolong
Filters Clear Focusing 1,25"
$ 53.00
ready for shipping in 3-5
weeks