Apochromatic Refractors
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Apochromatic Refractors
We can offer you a range of very high quality refractors in this category. These include e.g. our two- and three-lens APM Apo instruments, our astrograph series, available as APM or APM-LZOS models. Equipped with Riccardi reducers / correctors or as a high-end version CNC LW II with Feathertouch extracts. All around excellent instruments that should leave no wishes.
The special feature of the 140mm SD APO:
- 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
- &CNC tube rings
- Carry handle
- Very good value for money
Apochromatic refractor AP 130/780 LZOS 3.7-ZTA OTA
- Our LZOS Super ED 3-lens models come with a test report, meaning that each lens is individually measured using a Twymann interferometer and recorded with the serial number of the lens.
- Maximum Strehl ratio (as with the Zeiss APQ) is guaranteed to be 95% or better.
- Residual chromatic aberration optimized to a minimum.
- Temperature-compensating mount.
The Askar 160APO is an apo refractor with 160 mm aperture, 1120 mm focal length and a focal ratio of f/7 with many practical features.
- Aperture 160 mm - focal length 1120 mm - focal ratio f/7
- Air-spaced triplet objective with one ED element
- Stable 3.5" dual-speed RAP focuser with 360° rotator and 100 mm drawtube travel
- Sufficient working distance for observation with 2" accessories and for photography
- CNC tube rings with dovetail bar (Losmandy) and carrying handle
- Two finder shoes
- 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
TS Premium 80 mm f/7 ED apo refractor telescope with improved image quality due to ED objective and 2" rack & pinion focuser for astrophotography and observation
- TSED80F7: Special offer for a limited time. The telescopes are new and have full warranty.
- Premium 80 mm f/7.0 ED 2-element objective with improved chromatic correction and good light sensitivity - glas from Ohara (Japan)
- Focal length 560 mm - focal ratio f/7
- Outstanding mechanical construction with CNC tube, CNC tube rings and temperature compensated, adjustable lens mounting
- 2" dual-speed rack & pinion focuser - one of the best focusers of the TS product range for high loads
- 2" and 1.25" connection, and M54x0.75 inner thread are available for adaptations
- Very good image field correctors and also reducers for astrophotography are optionally available
- Dovetail GP/EQ5 style is included
- Finder shoe for finder scopes and small guidescopes is included
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 Ultra-Cat 56 is a high-performance 56 mm apochromatic refractor, designed for astrophotographers who demand exceptional clarity and true color accuracy.
- Aperture 56 mm, focal length 269 mm
- Focal ratio f/4.8
- Optical design according to Petzval with integrated corrector (five elements in total)
- No flattener necessary
- Temperature-stable lens cells
- Clear and sharp image even when using a full frame sensor
- William Optics Internal Focus Design (WIFD)
- 30 mm focuser travel
- Rotator and tilt flange included
- Patented multifunctional handle
- Connection on camera side: M54, M48
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
