Optolong

Optolong

Optolong Optics Co., ltd is the brand owner of Optolong which is a manufacturer of astronomy filters, fluorescence filters.

The five-band pass filter L-Pro has received one of the most positive feedbacks in the astronomy world. Optolong also manufactures other filters such as UHC, H-Beta, O-III, H-Alpha, SII, LRGB.

The new L-eXtreme filter is a 7nm bandpass filter that can be used with one-shot color cameras. Or with DSLRs, (digital SLR) and monochrome CCD cameras and is also suitable for high-speed systems.

The convenience of this filter allows amateurs to visualize a rich emission nebula. Even in bright, slightly dirty areas.


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  • Fall deal
    Optolong CLS 1.25 inch broadband filter

    Optolong CLS 1.25 inch broadband filter

    Type: Overige
    Mounting: Overige
    Size (mm): 1.25 inch
    Rated 0 out of 5
    Sale! Original price was: € 59,00.Current price is: € 45,00.
    Ready to ship in 24h
  • Fall deal
    Optolong CLS 1.25 inch broadband filter

    Optolong CLS 2 inch broadband filter

    Type: Overige
    Mounting: Overige
    Size (mm): 2 inch
    Rated 0 out of 5
    Sale! Original price was: € 89,00.Current price is: € 69,00.
    Ready to ship in 24h
  • Optolong L-eXtreme 1.25 inch dual band filter

    Optolong L-eXtreme 1.25 inch dual band filter

    Type: Narrowband
    Mounting: Overige
    Size (mm): 1.25 inch
    Rated 0 out of 5
    € 215,00
    Ready to ship in 24h
  • Optolong L-eXtreme 1.25 inch dual band filter

    Optolong L-eXtreme 2 inch dual band filter

    Type: Narrowband
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    € 255,00
    Ready to ship in 24h
  • Optolong L-Para

    Optolong L-Para 2 inch 10nm filter

    Type: Dual-Narrowband
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    € 279,00
    Ready to ship in 24h
  • Optolong L-Pro Canon EOS R Clip in filter

    Optolong L-Pro Canon EOS R Clip in filter

    Type: Lichtvervuiling
    Mounting: Clip-in
    Size (mm): Onbekend
    Rated 0 out of 5
    € 219,00
    Ready to ship in 24h
  • Optolong L-Quad Enhance Filter 2 inch

    Optolong L-Quad Enhance Filter (L-QEF) 2 inch

    Type: Lichtvervuiling
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    € 199,00
    Ready to ship in 24h
  • Nieuw
    Optolong L-Synergy filter

    Optolong L-Synergy Filter 2 inch

    Type: Narrowband
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    Sale! Original price was: € 279,00.Current price is: € 255,00.
    Ready to ship in 24h
  • Optolong L-Ultimate 3 nm Dual Band Filter, 1.25 inch

    Optolong L-Ultimate 1.25 inch 3nm filter

    Type: Dual-Narrowband
    Mounting: Mounted
    Size (mm): 1.25 inch
    Rated 0 out of 5
    € 255,00
    Ready to ship in 24h
  • Optolong L-Ultimate 2 inch 3nm filter

    Optolong L-Ultimate 2 inch 3nm filter

    Type: Dual-Narrowband
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    € 359,00
    Ready to ship in 24h
  • Promotie aanbieding
    Optolong L2 combo set

    Optolong L2 Dual-Combo Set (L-eXtreme & L-Synergy)

    Type: Narrowband
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    Sale! Original price was: € 534,00.Current price is: € 499,00.
    Ready to ship in 24h
  • Optolong LRGB 1.25 inch filter set

    Optolong LRGB 1.25 inch filter set 4 filters

    Type: L-RGB
    Size (mm): 1.25 inch
    Connection to telescope: 1.25
    Rated 0 out of 5
    € 195,00
    Ask us for the delivery time
  • Optolong LRGB 1.25 inch filter set

    Optolong LRGB 2 inch filter set 4 filters

    Type: L-RGB
    Size (mm): 2 inch
    Connection to telescope: 2
    Rated 0 out of 5
    € 319,00
    Ask us for the delivery time
  • Optolong LRGB 31 mm unmounted filter set

    Optolong LRGB 31 mm unmounted filter set

    Type: L-RGB
    Size (mm): 31 mm
    Connection to telescope: 31 mm
    Rated 0 out of 5
    € 227,00
    Ready to ship in 24h
  • Optolong LRGB 36 mm unmounted filter set

    Optolong LRGB 36 mm unmounted filter set

    Type: L-RGB
    Mounting: Overige
    Size (mm): 36 mm
    Rated 0 out of 5
    € 269,00
    Ready to ship in 24h
  • Optolong SHO 3nm 2 inch filter set

    Optolong SHO 3nm 2 inch filter set

    Type: Narrowband
    Mounting: Mounted
    Size (mm): 2 inch
    Rated 0 out of 5
    € 1.080,00
    Ask us for the delivery time
  • Optolong SHO 3nm 36mm filter set

    Optolong SHO 3nm 36mm filter set

    Type: Narrowband
    Mounting: Unmounted
    Size (mm): 36 mm
    Rated 0 out of 5
    € 889,00
    Ready to ship in 24h
  • Optolong SHO filters set 6.5nm

    Optolong SHO filters set 6.5nm

    Type: Narrowband
    Mounting: Overige
    Size (mm): 1.25 inch
    Rated 0 out of 5
    Price range: € 399,00 through € 615,00
    This product has multiple variants. The options may be chosen on the product page
    Delivery time: make your choice
  • Optolong UV/IR Cut Filter 2 Inch

    Optolong UV/IR 1.25 Inch Cut filter

    Type: Blocking
    Mounting: Overige
    Size (mm): 1.25 inch
    Rated 0 out of 5
    € 49,00
    Ready to ship in 24h
  • Optolong UV/IR Cut Filter 2 Inch

    Optolong UV/IR Cut Filter 2 inch

    Type: Blocking
    Mounting: Overige
    Size (mm): 2 inch
    Rated 0 out of 5
    € 74,00
    Ready to ship in 24h
  • Optolong L-eNhanced 1.25 inch Light Pollution Filter

    Optolong L-eNhanced 1.25 inch Light Pollution Filter

    Type: Dual-Narrowband
    Mounting: Overige
    Size (mm): 1.25 inch
    Rated 0 out of 5
    € 189,00
    Ready to ship in 24h
  • Optolong L-eNhanced 1.25 inch Light Pollution Filter

    Optolong L-eNhanced 2 inch Light Pollution Filter

    Type: Dual-Narrowband
    Mounting: Overige
    Size (mm): 2 inch
    Rated 0 out of 5
    € 199,00
    Ready to ship in 24h
  • Optolong L-Pro 2 inch Light Pollution Filter

    Optolong L-Pro 1.25 inch Light Pollution Filter

    Type: Nebula
    Mounting: Overige
    Size (mm): 1.25 inch
    Rated 0 out of 5
    € 149,00
    Ready to ship in 24h
  • Offers
    Optolong L-Pro 2 inch Light Pollution Filter

    Optolong L-Pro 2 inch Light Pollution Filter

    Type: Nebula
    Mounting: Overige
    Size (mm): 2 inch
    Rated 0 out of 5
    Sale! Original price was: € 199,00.Current price is: € 180,00.
    Ready to ship in 24h
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