Refractors

New Vixen SD103SII apochromatic high-performance refractor with FPL53 SD glass and improved optical properties for demanding observers and astrophotographers

• Apochromatic high-performance refractor with FPL53 ED glass
• Reduces chromatic aberration to an absolute minimum
• Guarantees enormously high contrast and excellent sharpness
• You get a very colour-pure, sharp and neutral image
• Very light and transportable, ideally suited for mobile applications
• Fully-coated 103 mm SD lenses without spacer plates
• No more unwanted spikes visible on the stars
• High-quality standard "Made in Japan"
• Dimensions: 115 x 810 mm
• Weight: 5.5 kg with accessories

The William Optics GT 71 Apo stands for optimal color correction and best possible contrast - a powerful travel telescope for observation and photography.

• Aperture 71 mm
• Focal length 420 mm
• Focal ratio f/5.9
• Multicoated air-spaced FPL53 triplet lens
• 2.5" RAP focuser with M63x1 connection thread, as well as 2" and 1.25"
• Multifunction handle with holder for guide scopes
• Bahtinov mask integrated
• Variable carrier bag
• Vixen/EQ5 style dovetail bar
• Golden Edition

The special feature of the 140mm SD APO with Riccardi Reducer:

• Very high quality processed and of convincingly good optical quality
• Colorless optics with FLP53 glass
• Precise 2.5" focuser with 1:10 mirco reduction for heavy accessories
• With f / 7 ideal for visual
• With f/5,25 ideal for photographic purposes with Riccardi Reducer
• CNC tube rings
• Carry handle
• Very good value for money

100 mm (4”) f/700 ED apochromatic refractor telescope

• Maximum useful magnification: 200x
• Aperture: 100 mm
• Focal length: 700 mm (f/7)
• Dual-speed 11:1 2" Crayford focuser
• 2.8" extension tube with scale and 360º rotation adapter
• Multi-coated lens with MHTC coating
• Slide-in dew cap
• 2" eyepiece connection
• Viewfinder shoe compatible with all Sky-Watcher viewfinders
• Tube rings with handle
• 45 mm prism rail
• Aluminium OTA with light shields
• OTA length: 570 mm (dew cap inserted), 675 mm (dew cap extended)
• OTA weight: 5.5 kg

Translated with DeepL.com (free version)

SV48P 102mm Achromatic Telescope Refractor with 2.5" RAP Dual-Speed Focusing & Dovetail Mounting Plate for Astronomical Observation

• 102mm large aperture; large objective lens refractor telescope; high resolution; good light collecting ability; f/6.5 focal ratio; imaging brighter;
• f/6.5 short focal ratio; larger field of view; can collect more light; the image is brighter; and the observation target is clearer and easier to observe;
• Dual-speed focusing; fast focus allows you to quickly move the focus wheel to roughly focus on your target; while slow focus adjusts focus more finely for optimal image clarity;
• Integral telescope rings; the tube rings make the telescope more stable and avoid wobbling; and provide a stable support to keep the optical components of the telescope stable relative to each other;
• Easy to assemble and use; the telescope is designed to be user-friendly; it can be set up quickly without additional tools; you can find a lot of fun in assembling.

Note: The main lens have been corrected completely.

Best Achromatic Telescope for Astronomy Beginners

New Vixen SD115SII apochromatic high-performance refractor with FPL53 SD glass and improved optical properties for demanding observers and astrophotographers

• Apochromatic high-performance refractor with FPL53 ED glass
• Reduces chromatic aberration to an absolute minimum
• Guarantees enormously high contrast and excellent sharpness
• You get a very colour-pure, sharp and neutral image
• Very light and transportable, ideally suited for mobile applications
• Fully-coated 115 mm SD lenses without spacer plates
• No more unwanted spikes visible on the stars
• High quality standard "Made in Japan"
• Dimensions: 125 x 920 mm
• Weight: 6.3 kg with accessories

The William Optics GT 81 apo stands for optimal chromatic correction and best possible contrast - a powerful travel telescope for observation and photography.

• Aperture 81 mm
• Focal length 480 mm
• Focal ratio f/5.9
• Multicoated, air-spaced FPL53 triplet lens
• 2.5" RAP focuser with M63x1 connection thread, as well as 2" and 1.25"
• Multifunction handle with holder for guide scopes
• Bahtinov mask integrated
• Variable carrier bag
• Vixen/EQ5 style dovetail bar

102mm (4") f/500 ALT-AZIMUTH REFRACTOR TELESCOPE

2'' Connector Takahashi FS-60/78 FC-76DC und FC-100 DC, TKA21110

• Connection (object side): M56x0,75(neg)
• Connection (observer side): 50,8mm(neg)
• lightpass: 39mm