William Optics
Focusing Mask Bahtinov 243-308mm
$ 173.00
ready for shipping in 24
h
Baader
Adapter System M68/80 intermediate ring 80mm long
$ 108.00
ready for shipping in 1-2
weeks
Baader
Eyepiece cup with M43 thread
$ 23.90
ready for shipping in 1-2
weeks
Baader
Filters H-Beta CMOS Narrowband 36mm
$ 250.00
ready for shipping in 1-2
weeks
Baader
Foldable lateral light shade (for spectacle wearers) for Hyperion & aspheric eyepieces
$ 20.90
ready for shipping in 1-2
weeks
Baader
Carrying case FFB 450 mm
$ 325.00
ready for shipping in 6-10
weeks
Baader
Schmidt-Cassegrain telescope SC 279/2800 Triband-SCT 11
$ 7,300.00
ready for shipping in 1-2
weeks
Baader
Solar Iris Aperture Mounting for D-ERF 135-160 Filters
$ 192.00
ready for shipping in 1-2
weeks
Baader
Adapter M68 adaptor for Diamond Steeltrack BDS
$ 45.90
ready for shipping in 1-2
weeks
Baader
Filters UBVRI Bessel V 65x65mm
$ 340.00
ready for shipping in 1-2
weeks
Baader
Filters UBVRI Bessel B 65x65mm
$ 338.00
ready for shipping in 1-2
weeks
Baader
Filters UBVRI Bessel I 50x50mm
$ 332.00
ready for shipping in 1-2
weeks
Baader
UFC filter drawer 50x50mm
$ 60.00
ready for shipping in 1-2
weeks
Baader
Adapter 1.25" / T2 eyepiece clamp
$ 23.90
ready for shipping in 24
h
William Optics
Apochromatic refractor AP 71/350 RedCat 71 OTA
$ 2,310.00
ready for shipping in 3-5
weeks
Baader
Filters UBVRI Bessel R 65x65mm
$ 330.00
ready for shipping in 1-2
weeks
Baader
Filters UBVRI Bessel U 50x50mm
$ 331.00
ready for shipping in 1-2
weeks
Baader
Prism clamp, with handle, for Losmandy-style prism rail
$ 97.00
ready for shipping in 1-2
weeks
Baader
Extension tube VariLock 29 lockable T-2 20-29mm extender, with lock spanner
$ 81.00
ready for shipping in 1-2
weeks
Baader
Maxbright 1:1.25 glasspath corrector
$ 142.00
ready for shipping in 1-2
weeks
Baader
Filters H-Beta CMOS Narrowband 31mm
$ 227.00
ready for shipping in 1-2
weeks
William Optics
Apochromatic refractor AP 81/478 Gran Turismo 81 IV OTA Guidescope-Set
RRP:
$ 2,540.00
Our price:
$ 2,050.00
ready for shipping in 3-5
weeks
Baader
Extension tube Fine-tuning ring for M48 0.3mm
$ 16.90
ready for shipping in 24
h
Baader
Adapter ring Eyepiece bayonet for ZEISS Harpia Spotting scopes 1.25"
$ 68.00
ready for shipping in 24
h
Baader
Maxbright 1:1.70 glasspath corrector T2
$ 148.00
ready for shipping in 1-2
weeks
Baader
Filters H-alpha CMOS f/2 Highspeed 36mm
$ 218.00
ready for shipping in 1-2
weeks
Baader
Filters SII CMOS f/2 Highspeed 36mm
$ 217.00
ready for shipping in 1-2
weeks
Baader
Filters OIII CMOS Ultra-Narrowband 2"
$ 446.00
Product can be shipped as of 22.07.2026
Baader
Flat field mask FFB 450 mm
$ 2,500.00
ready for shipping in 6-10
weeks
Baader
Filters RGB-G CMOS 50x50mm
$ 213.00
ready for shipping in 1-2
weeks
Baader
Filters RGB-B CMOS 50x50mm
$ 210.00
ready for shipping in 1-2
weeks
Baader
Amici prism 1.25" 45°
$ 98.00
ready for shipping in 1-2
weeks
Baader
M68/2 " /M68 eyepiece projection mounting plate and 2 " Steckfassung
$ 105.00
ready for shipping in 24
h
Baader
Filters 570nm 2"
$ 87.00
ready for shipping in 1-2
weeks
Baader
Adapter 2"/S52 extension tube
$ 47.90
ready for shipping in 24
h
Baader
Adapter M68/S52 Adaptors for Wide-T-Rings
$ 54.00
ready for shipping in 1-2
weeks