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 Clear Sky Filter 82mm](/Produktbilder/normal/69501_3/Optolong-Filters-Clear-Sky-Filter-82mm.jpg)
Optolong
Filters Clear Sky Filter 82mm
$ 243.00
ready for shipping in 3-5
weeks
![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
RRP:
$ 210.00
Our price:
$ 199.00
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
$ 188.00
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"
RRP:
$ 265.00
Our price:
$ 254.00
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
RRP:
$ 399.00
Our price:
$ 319.00
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"
$ 288.00
ready for shipping in 24
h
![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
$ 265.00
ready for shipping in 3-5
weeks
![Optolong Filters L-eNhance APS-C EOS Clip](/Produktbilder/normal/67305_3/Optolong-Filters-L-eNhance-APS-C-EOS-Clip.jpg)
Optolong
Filters L-eNhance APS-C EOS Clip
( 3.5 / 5 )
$ 299.00
ready for shipping in 24
h
![Optolong Filters L-eNhance 2"](/Produktbilder/normal/63802_5/Optolong-Filters-L-eNhance-2-.jpg)
Optolong
Filters L-eNhance 2"
( 5 / 5 )
$ 265.00
ready for shipping in 24
h
![Optolong Filters L-Pro Canon EOS R Clip](/Produktbilder/normal/71895_7/Optolong-Filters-L-Pro-Canon-EOS-R-Clip.jpg)
Optolong
Filters L-Pro Canon EOS R Clip
RRP:
$ 332.00
Our price:
$ 265.00
ready for shipping in 24
h
![Optolong Filters L-Pro Clip Sony Full Frame](/Produktbilder/normal/71253_1/Optolong-Filters-L-Pro-Clip-Sony-Full-Frame.jpg)
Optolong
Filters L-Pro Clip Sony Full Frame
RRP:
$ 310.00
Our price:
$ 269.00
ready for shipping in 24
h