William Optics
Flattener Flat73A for ZenithStar 73
$ 381.00
Product can be shipped as of 15.12.2025
William Optics
Guidescope 50mm f/4.0 RotoLock
$ 277.00
ready for shipping in 24
h
William Optics
M48 adaptors for Canon EOS Super high precision
$ 173.00
ready for shipping in 3-5
weeks
William Optics
Apochromatic refractor AP 81/478 GranTurismo 81WIFD OTA
$ 2,530.00
ready for shipping in 3-5
weeks
Shelyak
Alpy & UVEX calibration module
$ 1,020.00
ready for shipping in 1-2
weeks
William Optics
Dura Bright 1.25" 90° mirror star diagonal
$ 219.00
ready for shipping in 3-5
weeks
William Optics
Tube clamps Mounting Ring and CAT Handle Bar Kit for ZenithStar 61 version I
$ 150.00
ready for shipping in 3-5
weeks
William Optics
M46 adaptors for Canon EOS
$ 115.00
ready for shipping in 24
h
William Optics
Rotator M92
$ 300.00
ready for shipping in 24
h
Shelyak
150 gr/mm grating module
$ 770.00
ready for shipping in 1-2
weeks
William Optics
2x Barlow lense for 1.25'' Binoviewers
$ 92.00
ready for shipping in 3-5
weeks
Shelyak
Sol'Ex / Star'Ex HR expansion set
$ 196.00
ready for shipping in 1-2
weeks
William Optics
Focusing Mask Bahtinov 243-308mm
$ 173.00
ready for shipping in 3-5
weeks
William Optics
Full-Frame Flattener/Reducer 0.72x
$ 1,160.00
ready for shipping in 3-5
weeks
William Optics
Expandable 1:10 Micro gear for Synta focuser
$ 207.00
ready for shipping in 24
h
William Optics
Adapter Flat68II / Flat7A
$ 92.00
ready for shipping in 3-5
weeks
Shelyak
Eyepiece holder for Alpy guiding
$ 392.00
ready for shipping in 1-2
weeks
Shelyak
Thorium-Argon-Bulb
$ 1,160.00
ready for shipping in 1-2
weeks
William Optics
Red dot finder with quick-release bracket and base
$ 150.00
ready for shipping in 3-5
weeks
William Optics
Rotator Rotolock Visual Back 3.5
$ 334.00
ready for shipping in 3-5
weeks
William Optics
Rotator Rotolock Visual Back 3.5
$ 334.00
ready for shipping in 3-5
weeks
Shelyak
Reflective Standard SLIT 15/19/23/35 LISA & LHIRES III
$ 248.00
ready for shipping in 1-2
weeks
William Optics
Guidescope Guide Star Apo 61
$ 770.00
ready for shipping in 3-5
weeks
Shelyak
LISA near-IR kit
$ 950.00
ready for shipping in 1-2
weeks
Shelyak
600 gr/mm grating module
$ 810.00
ready for shipping in 1-2
weeks
Shelyak
1200 gr/mm grating module
$ 810.00
ready for shipping in 1-2
weeks
Shelyak
300 gr/mm grating module
$ 810.00
ready for shipping in 1-2
weeks
Shelyak
1800 gr/mm grating module
$ 810.00
ready for shipping in 1-2
weeks
Shelyak
Diffraction grating for Lhires III, 2400 lines/mm
$ 820.00
ready for shipping in 1-2
weeks
William Optics
Vixen Style Mounting Base
$ 40.90
ready for shipping in 3-5
weeks
Shelyak
SPOX module Alpy/LISA 5m
$ 540.00
ready for shipping in 1-2
weeks
William Optics
Rotator Rotolock Visual Back 3.5
$ 334.00
ready for shipping in 3-5
weeks
William Optics
Losmandy Swan Series 400mm
$ 196.00
ready for shipping in 3-5
weeks
Shelyak
Alpy DSLR Barlow lens
$ 163.00
ready for shipping in 1-2
weeks
Shelyak
Alpy C-mount adapter
$ 87.00
ready for shipping in 24
h
William Optics
Losmandy Swan Series 400mm
$ 219.00
ready for shipping in 3-5
weeks