Product series:
Telescope accessories: Telescopes: Eyepieces: Filters: Astrophotography: Starlight-Xpress: William-Optics: Spectroscopy & Photometry: Mounts & accessories: Solar Observation:
William Optics
Apochromatic refractor AP 51/250 RedCat WIFD
$ 1,282.54
ready for shipping in 24
h

William Optics
Guidescope UniGuide 32mm Red
$ 196.39
ready for shipping in 24
h

William Optics
Diagonal mirror Dura Bright 90° 2"
$ 266.53
ready for shipping in 24
h

William Optics
Apochromatic refractor AP 51/178 MiniCat WIFD OTA
$ 1,382.74
ready for shipping in 24
h

William Optics
Guidescope UniGuide 50mm Red
$ 243.48
ready for shipping in 24
h

William Optics
Apochromatic refractor AP 71/350 RedCat 71 WIFD
$ 2,545.05
ready for shipping in 24
h

William Optics
40mm SWAN eyepiece, 2''
( 5 / 5 )
$ 218.43
ready for shipping in 24
h

DayStar
Combo QUARK H-Alpha solar filter, for chromosphere
$ 1,783.54
ready for shipping in 24
h

William Optics
Camera adaptor T-Ring Nikon Z 48mm
( 5 / 5 )
$ 87.17
ready for shipping in 24
h

William Optics
Polar wedge High Latitude SkyGuider Pro
RRP:
$ 416.83
Our price:
$ 393.78
ready for shipping in 24
h

William Optics
Apochromatic refractor AP 91/448 BlackCat 91 WIFD OTA
$ 3,827.59
ready for shipping in 24
h

William Optics
Guidescope UniGuide 50mm Ultra
$ 243.48
ready for shipping in 24
h

William Optics
DSD 210 D-Prism rail
$ 69.14
ready for shipping in 24
h

William Optics
M48 / Sony E Adaptors
$ 80.16
ready for shipping in 24
h

William Optics
Camera adaptor M48 compatible with Canon EOS
( 5 / 5 )
$ 69.14
ready for shipping in 24
h

Planet Poster Editions
Poster The Solar System
$ 13.93
ready for shipping in 24
h

William Optics
Cat Series Saddle Handle Bar
( 5 / 5 )
$ 92.18
ready for shipping in 24
h

William Optics
Focusing Mask Bahtinov 75-110mm
$ 80.16
ready for shipping in 24
h

DayStar
QUARK H-alpha filter, prominences
$ 1,783.54
ready for shipping in 24
h

DayStar
Filters 0.5Å H-alpha Quantum PE filter
$ 30,360.19
ready for shipping in 3-6
months

William Optics
Adjustable Flattener Reducer Flat6AIII
$ 463.92
ready for shipping in 24
h

Planet Poster Editions
Poster Messier
$ 13.93
ready for shipping in 24
h

Starlight Xpress
Camera Trius SX-56 Mono
$ 11,322.45
ready for shipping in 1-2
weeks

Planet Poster Editions
Poster The Solar System
$ 13.93
ready for shipping in 24
h

William Optics
Flattner Flat61A for Z61
$ 358.71
ready for shipping in 24
h

William Optics
Flat GT
$ 347.69
ready for shipping in 24
h

William Optics
Apochromatic refractor AP 61/300 RedCat 61 OTA
$ 2,094.15
ready for shipping in 24
h

Shelyak
Spectroscope Lhires III
$ 5,911.72
ready for shipping in 1-2
weeks

William Optics
Tube clamps Cat Mounting Ring
$ 80.16
ready for shipping in 24
h

Shelyak
Spectroscope eShel lense version
$ 12,424.63
ready for shipping in 1-2
weeks

Starlight Xpress
Camera Trius PRO-814C Color
$ 3,486.91
ready for shipping in 1-2
weeks

William Optics
Apochromatic refractor AP 108/518 UltraCat WIFD
$ 4,518.96
Product can be shipped as of 01.08.2025

DayStar
22.4 Amp hour battery pack for the Quark
$ 185.37
ready for shipping in 24
h

DayStar
QUARK Magnesium I (b2) Line
$ 2,064.09
ready for shipping in 24
h

Starlight Xpress
Camera Trius PRO-25C Color
$ 4,058.04
ready for shipping in 1-2
weeks

Starlight Xpress
Camera Trius PRO-694 Mono
$ 3,216.38
ready for shipping in 1-2
weeks