GSO

GSO or Guan Sheng Optical, supplier of all kinds of telescope accessories. GSO supplies everything in the field of accessories.

Price/quality is of paramount importance. Eyepieces, diagonals, main and secondary mirrors or mirror holders. Everything from focusing devices to telescope brackets is available at GSO.

Ganymedes generally has a lot of GSO in stock, which means that it can be delivered quickly at very reasonable prices.


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  • Guan Sheng zoeker voetje

    Guan Sheng zoeker voetje

    Rated 0 out of 5
    € 12,50
    Ready to ship in 24h
  • Guan Sheng buisringen 136mm set, zwart

    GSO buis-ringen 90mm set, zwart

    Rated 0 out of 5
    € 20,00
    Ask us for the delivery time
  • Guan Sheng Dark Green 2 inch Filter #58

    Guan Sheng Dark Green 2 inch Filter #58

    Rated 0 out of 5
    € 29,00
    Ready to ship in 24h
  • Offers
    Guan Sheng 45 graden omkeer diagonaal

    Guan Sheng 45 graden omkeer diagonaal

    Rated 0 out of 5
    Sale! Original price was: € 39,00.Current price is: € 29,00.
    Ready to ship in 24h
  • Omegon 0.5x reducer

    Omegon 0.5X reducer 1.25″

    Type: Reducer
    Reducing factor (x): 0.5
    Connection to telescope: 1.25
    Rated 0 out of 5
    € 39,90
    Ready to ship in 24h
  • Guan Sheng 5x Barlow Lens APO

    Guan Sheng 5x Barlow Lens APO

    Rated 0 out of 5
    € 69,00
    Ready to ship in 24h
  • GSO Barlow lens 3x 1 25 inch

    Guan Sheng Barlow lens 3x 1 25 inch

    Rated 0 out of 5
    € 39,00
    Ask us for the delivery time
  • Guan Sheng 1.25" neusstuk met T2-draad

    Ganymedes 1.25 inch neusstuk met T2-draad

    Type: Telescoopcamera-adapter
    Connection to telescope: 1.25 inch
    Rated 0 out of 5
    € 15,00
    Ready to ship in 24h
  • Guan Sheng 6" F8 primaire spiegel.

    Guan Sheng 10 inch F5 primaire spiegel

    Rated 0 out of 5
    € 295,00
    Ask us for the delivery time
  • Guan Sheng 6" F5 spiegelset

    Guan Sheng 10 inch F5 spiegelset 63mm sec. spiegel

    Rated 0 out of 5
    € 345,00
    Ask us for the delivery time
  • Guan Sheng 2 inch verleng bus 35 mm

    Guan Sheng 2 inch verleng bus 35 mm

    Type: Spacers
    2 inch: Ja
    M48: Ja
    Rated 0 out of 5
    € 24,00
    Ready to ship in 24h
  • Guan Sheng 2 inch verleng bus 80 mm

    Guan Sheng 2 inch verleng bus 80 mm

    Type: Spacers
    2 inch: Ja
    M48: Ja
    Rated 0 out of 5
    € 24,00
    Ready to ship in 24h
  • Guan Sheng 40mm plossl oculair 1.25"

    Guan Sheng 20mm SuperView 1 25 inch wide field

    Rated 0 out of 5
    € 49,00
    Ready to ship in 24h
  • Guan Sheng 40mm plossl oculair 1.25"

    Guan Sheng 20 mm plössl oculair 1.25 inch

    Rated 0 out of 5
    € 39,00
    Ready to ship in 24h
  • Guan Sheng 40mm secundaire spiegel (Geen spider)

    Guan Sheng 40mm secundaire spiegel (Geen spider)

    Rated 0 out of 5
    € 35,00
    Ask us for the delivery time
  • Guan Sheng 6" F8 primaire spiegel.

    Guan Sheng 8 inch F5 primaire spiegel

    Rated 0 out of 5
    € 185,00
    Ask us for the delivery time
  • Guan Sheng 40mm plossl oculair 1.25"

    Guan Sheng 9mm plössl

    Rated 0 out of 5
    € 39,00
    Ask us for the delivery time
  • Guan Sheng buisringen 136mm set, zwart

    Guan Sheng buisringen 176mm set, zwart

    Rated 0 out of 5
    € 45,00
    Ready to ship in 24h
  • Guan Sheng T2 camera adapter 1.25

    Guan Sheng camera adapter 1.25″ oculair projectie

    Type: Telescoopcamera-adapter
    Connection to telescope: 1.25 inch
    Rated 0 out of 5
    € 39,00
    Ask us for the delivery time
  • Guan Sheng Donkergroen filter 1.25" #58

    Guan Sheng Donkergroen filter 1.25″ #58

    Rated 0 out of 5
    € 15,00
    Ready to ship in 24h
  • Guan Sheng Donkerrood filter 1.25" #29

    Guan Sheng Donkerrood filter 1.25″ #29

    Rated 0 out of 5
    € 15,00
    Ask us for the delivery time
  • Guan Sheng Geel filter 1.25" #12

    Guan Sheng Geel filter 1.25″ #12

    Rated 0 out of 5
    € 15,00
    Ready to ship in 24h
  • Guan Sheng Lichtblauw filter 1.25" #80A

    Guan Sheng Lichtblauw filter 1.25″ #80A

    Rated 0 out of 5
    € 15,00
    Ready to ship in 24h
  • Guan Sheng Lichtgeel filter 1.25" #8

    Guan Sheng Lichtgeel filter 1.25″ #8

    Rated 0 out of 5
    € 15,00
    Ready to ship in 24h
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