William Optics
Focusing Mask Bahtinov 172-235mm
$ 115.00
ready for shipping in 24
h
DayStar
Quark Universal AC Power Supply
$ 80.00
ready for shipping in 24
h
DayStar
QUARK H-alpha filter Gemini
$ 3,690.00
ready for shipping in 3-6
months
William Optics
Adapter SCT connection for WO Diagonals
$ 69.00
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 81/559 ZenithStar 81 WIFD Red OTA
$ 1,840.00
ready for shipping in 3-5
weeks
William Optics
Apochromatic refractor AP 81/478 Gran Turismo 81 IV OTA
$ 2,070.00
ready for shipping in 24
h
DayStar
Filters Energy Rejection Filter E-281F80
$ 810.00
ready for shipping in 3-6
months
William Optics
Apochromatic refractor AP 81/478 Gran Turismo 81 IV OTA
$ 2,070.00
ready for shipping in 3-5
weeks
William Optics
Carry case ZenithStar 71 & 73
$ 115.00
ready for shipping in 24
h
William Optics
Adaptors for Flattener 6A
$ 115.00
Available on request
William Optics
Adapter Rotolock Adaptors 2" 1.25" Red
$ 92.00
ready for shipping in 24
h
DayStar
Filters Energy Rejection Filter E-110N75
$ 810.00
ready for shipping in 3-6
months
William Optics
Apochromatic refractor AP 73/430 Super ZenithStar 73 Gold OTA
$ 1,010.00
Product can be shipped as of 15.12.2025
DayStar
Filters Energy Rejection Filter E-120N80
$ 810.00
ready for shipping in 3-6
months
DayStar
Filters Energy Rejection Filter E-170N130
$ 1,380.00
ready for shipping in 3-6
months
William Optics
Carry case ZS81/GT81/GTF81
$ 115.00
ready for shipping in 24
h
William Optics
Flat6A III Special Edition FLT91
$ 438.00
ready for shipping in 3-5
weeks
William Optics
Flattener Flat68III
$ 1,140.00
ready for shipping in 3-5
weeks
DayStar
Filters Energy Rejection Filter SC 8" (E-244F63)
$ 810.00
ready for shipping in 3-6
months
DayStar
Blocking Filters UV/IR 2"
$ 184.00
ready for shipping in 3-6
months
William Optics
Apochromatic refractor AP 81/478 Gran Turismo 81 IV OTA Guidescope-Set
RRP:
$ 2,530.00
Our price:
$ 2,040.00
ready for shipping in 3-5
weeks
William Optics
Adapter Rotolock Adaptors 2" 1.25" Gold
$ 92.00
ready for shipping in 3-5
weeks
William Optics
Apochromatic refractor AP 132/925 FluoroStar Red OTA
$ 6,400.00
ready for shipping in 3-5
weeks
William Optics
Adjustable Flattener Reducer Flat7A
$ 1,140.00
ready for shipping in 3-5
weeks
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
William Optics
Dura Bright 1.25" 90° mirror star diagonal
$ 219.00
ready for shipping in 3-5
weeks
DayStar
Adapter Eyepiece Holder for Quark 2"
$ 115.00
ready for shipping in 3-6
months
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
William Optics
2x Barlow lense for 1.25'' Binoviewers
$ 92.00
ready for shipping in 3-5
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