Apochromatic Refractors

The Gran Turismo refractor is an apochromatic triplet with FPL-53 element for highest colour purity and strong contrast! A refracting telescope that is versatile and leaves little to be desired.

• An ideal travel instrument
• High-quality 3-lens optics
• Can be used visually and photographically
• 2.5" focuser with 1:10 gear reduction
• Supplied with focus mask according to Bahtinov

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 ASKAR APO 60 mm f/5 Quintuplet Apochromat from Sharpstar is optimized for wide field astrophotography with high resolution cameras

• aperture 60 mm
• focal length 300 mm / focal ratio f/5
• 5-element quintuplet design with corrector in the tube
• ED glass in the lens for very good correction of chromatic aberration
• 44 mm image circle with full illumination and correction
• Working distance optimized for photography - e.g. with cameras with 55mm flange focal length
• Stable 2.5" RAP focuser with micro reduction and 360° rotation
• M54x0.75 , M48x0.75 and T2 adapter included for easy camera adaption
• Internal thread for 2" filter available
• Flexible GP/EQ5 level Dovetail bar with photo tripod connection and carrying handle with flexible oblong hole
• Viewfinder shoe for standard viewfinder bracket

The very good correction and the self-flattening design make this small telescope a compact photo machine.

• Aperture 65 mm / focal length 416 mm / focal ratio f/6.4
• 5-element system with color clean triplet objective and two corrector lenses built into the tube
• Stable 2.5" RAP focuser with dual speed and 360° rotation
• Sufficient working distance for observation with 2" accessories
• Suitable photo adapters are included in delivery
• Illuminated image circle with very good correction up to full frame format
• CNC tube rings with Vixen style EQ5 dovetail bars and carrying handle
• Finder shoe for standard finder and mini guiding telescopes available

120mm (4.75”) f/900 ED Apochromatic Refractor Telescope

• 120 mm aperture, 900 mm focal length, focal ratio f/7.5
• High image quality thanks to extra-low dispersion glass FPL53 (Ohara, Japan) and matching glass from Schott
• Highly effective coating for maximum transmission and minimum reflections
• Large Crayford focuser with 11:1 reduction for sensitive focusing
• 360° rotation adapter
• Tube in traditional white - heats up less during the day and is more visible at night

The TS 110 mm ED with 770 mm focal length is a transportable telescope for astrophotography and for observing with good color correction.

• Aperture 110 mm / focal length 770 mm / focal ratio f/7
• ED Dublet objective with glass from Ohara (Japan)
• Good correction of color error by ED element up to magnifications around 220x
• Stable 2.5" RAP focuser with 2", 1.25" ring clamp and auxiliary thread for screw adaptions
  Dual-speeed and 360° rotation of the focuser - important for astrophotography
• 0.8x reducer and corrector for astrophotography specially calculated for the TS 110 mm f/7 ED available
• Only 65 cm transport length and 6.8 kg weight - is well supported by a mount of the EQ5 class
• Optimized CNC tube with retractable dew cap and CNC clamps with M6 female thread connection
• Vixen level dovetail bar with photo tripod connection thread included

The Premium ED apo with 96 mm aperture and fast f/6 is a transportable telescope for astrophotography and observation

• Aperture 96 mm / focal length 575 mm / focal ratio f/6
• Good correction of color aberration by FDC1 special glass
• Lens manufactured in Japan - very good image quality
• Internal baffles for contrast enhancement
• 2.5" RAP focuser with gear reduction and improved focuser support via large ball bearings
  1.25", 2" and M63x1 female thread connection on the eyepiece side
• Retractable dew shield for transport - can be extended up to 100 mm
• Finder shoe included for adapting finders and small guide scopes.
• CNC tube rings and two Vixen / EQ5 style dovetail bars included.
• For astrophotography, we offer a 0.94x reducer and corrector which is made for this
• elescope.

The Esprit-70EDX from Skywatcher offers the highest optical and mechanical quality and is optimized for astrophotography.

• Aperture 70 mm
• Focal length 490 mm (f/7)
• Triplet apo objective with FCD100 ED element
• Improved 2.8" dual-speed focuser for high payload
• 360° rotation
• 2" connection with additional thread for screw adaptations
• Retractable dew shield
• Carrying handle, Vixen GP style dovetail bar, carrying case

The new ZenithStar 61 are the most versatile and lightest apos from William Optics.

• High-quality optics with FPL53 lenses
• Universally applicable for nature and astronomical observations
• Ideal for astrophotography
• An ideal travel instrument
• Precise R&P focuser with 1:10 gear reduction

SV503 Astronomical Telescope 102mm F7 ED Refractor OTA

• ED Glass structure: The doublet air-spaced achromatic design with S-FPL51 ED glass reduces chromatic aberration, delivering crisp, accurate color images;
• Large aperture for bright images: The 102mm objective lens with an f/7 focal ratio brings more lights into the scope body and you will get more bright and clear image;
• FMC-coating for crisp image: Ultra-wideband multi-layer coatings and a retractable lens hood provide bright, wide-field images with sharp resolution, perfect for various types of observation;
• Dual-speed rack focuser: The 90mm back focus and dual-speed rack and pinion focuser with focus knob cover make it easy to achieve fine, accurate focus for both visual and photography.

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)

• Objective Lens Diameter: 80mm
• Telescope Focal Length: 600mm (f/7.5)
• Dual-Speed 11:1 2” Crayford Focuser (Backlash-Free)
• 2.8" Indexed Focuser Drawtube with 360º Rotatable Adaptor
• Multi-Coated Objective Lens with MHTC coatings
• Image Height 30mm (with optional reducer/flattener)
• Retractable Dew Shield
• Drawtube Adaptor to accept 2" Star Diagonal
• Finderscope Mounting Shoe (compatible with ALL Sky-Watcher finderscopes)
• Supplied with Tube Rings with Carrying handle

The 60F is a very transportable APO refractor for astrophotography with corrected field of view up to full frame format and for observing up to the highest magnification range.

• Aperture 60 mm / focal length 408 mm / focal ratio f/6.8
• 4-element system with colorless ED triplet objective and one correction element built into the tube
• 44 mm illuminated image circle with very good correction up to full-frame format
• Stable 2.4" dual-speed RAP focuser with 360° rotation, threaded connections, 2" adapter and 1.25" adapter
• Sufficient working distance for observation with 1.25" accessories
• Suitable photo adapters are included in the scope of delivery
• Tube rings with Vixen/EQ5 style dovetail bar (230 mm) and carrying handle
• 2 finder shoes for standard finders and mini guide scopes included
• Retractable dew shield
• Lightweight (2.9 kg) and short (289 mm) - suitable for traveling

SVBONY SV503 Telescope ED 80mm F7 Doublet Refractor OTA for Exceptional Viewing and Astrophotography

• Extra-low dispersion (ED) glass: The SV503 80mm features ED glass for high-contrast, crystal clear, color-accurate images, perfect for discerning observers;
• Fully Multi-Coated Optics: The whole optical lens adopts the technology of ultra-wideband multilayer coating.Fully multi-coated ED optics deliver outstanding views during day or night;
• Dual-Speed Focuser for Precision: Featuring a 1:10 dual-speed rack and pinion focuser, the 2-inch toothed focuser allows for smooth and precise focusing adjustments, ensuring sharp images for both visual observation and astrophotography;
• Top-quality material: The appearance of the SV503 OTA is baked with high-end fine-grained paint,with exquisite appearance and delicate feel,all machined by CNC;
• Areas of application:SV503 80mm F7 telescope would be better begin for astronomy amateurs to do astrophotography.

This extender is suitable for the Takahashi fluorite apochromats FS-60CB, FS-60Q, FC-76D (both versions), FC-76Q, and FC-100D (all versions). However, it is also compatible with the older Sky-90 and FSQ-106 fluorite models, which are no longer manufactured. Of course, it can also be used with many other devices as a moderate focal length extension.

•  Connection: M43x0.75(pos)
• Extension factor: 1.6x
• Number of lenses: 5

TS Photoline APO refractor wit 72 mm aperture and fast f/6 focal ratio, a great travel telescope for observation and astrophotography.

• Powerful, aberration-free apochromatic refractor with 72 mm aperture and 432 mm focal length.
• Fast focal ratio: f/6
• FPL53 doublet objective (Ohara Japan), air-spaced - additional lanthanum glass element, so no chromatic aberration
• 2.5" dual-speed rack-and-pinion focuser - ball bearing mounted for maximum load with M63x1 female thread for adaptions
• Retractable dew shield - the apo even fits into the hand luggage
• CNC tube rings with versatile dovetail bar - EQ5 style and with photo tripod connection.
• Finder shoe on the focuser is included
• Weight only 2.18 kg - transport length only 31 cm

With the FMA180 Askar has created a triplet APO refractor with unique visual and photographic applications

• With just a few simple steps, the APO telephoto lens can be transformed into a compact astronomical telescope, a guide scope or a powerful spotting scope for landscape observation.
• Aperture 40 mm
• Air-spaced triplet ED lens for almost pure color image
• Photographic focal length 180 mm (with corrector) - focal ratio f/4.5
• 2" filter thread in front of the objective for nebula filters
• Focal length for observation 220 mm
• The photographic field of view is up to full frame size
• Precise helical focuser on the lens for accurate focusing - with locking mechanism
  T2 camera connection with 55 mm working distance (when used as telephoto lens)
• Weight only 395 grams
• Can easily be attached to the telescope instead of the finder
• Fits on any ball head - also ideal for mobile astrophotography with photo trackers like the Sywatcher Adventurer
• Ideally suitable also as mini guide telescope
• The FMA180 can be converted into a compact spotting scope for observation in just a few steps

The compact FS-60CB Apo can be upgraded to a 60/600 f/10 quadruplet Apo with this 1.7x Q module. Optically, this version is superior to the FS-60CB ... 

• Extension factor: 1.7x
• Number of lenses: 2

The TS 4-element 62mm aperture refractor is a versatile spotting scope and telescope, a 520mm telephoto objective and a powerful guide scope for astrophotography.

• aperture 62 mm
• Focal length 520 mm -- Focal ratio f/8.4
• 4-element design for sharp imaging of moon, planets and deep-sky objects, but also daytime observing
• a versatile travel telescope for observing and photography due to a flat field of view
• sensitive Crayford focuser for precise focusing with locking screw
• 1.25" connector and T2 connector for screw adaptations
• sufficient working distance for use of 1.25" amiciprism, zenith prism and of course photo adapters
• finder shoe for direction finders, optical finders or mini guide scopes
• Carrying case with plenty of space for accessories
• Retractable dew cap - transport length only 310 millimeters
• High quality workmanship "Made in Taiwan"

A versatile ED refractor telescope for observation and photography - usable as APO spotting scope, guiding scope and super finder scope.

• aperture 60 mm / focal length 360 mm / focal ratio f/6
• 2-element APO objective with Nissan Super ED glass as APO element
• Usable as angled finder with optional 1.25" star diagonal or Amici prisms with 1.25" helical focuser (non rotating)
• 360° rotation on the eyepiece and camera side
• Can be used as a straight view finder with 1.25" helical focuser - the extension is integrated and screwed into the tube
• 1.25" "non-rotating" helical focuser - screw-on - with locking screw
• With the optional TSMPT60-Flat 1.0x corrector, the ED refractor becomes a full 360 mm f/6 telephoto lens for photography and astrophotography with objective focusing
• Includes adjustable clamps and dovetail bar for finder holder with 1/4" female thread for photo tripods