New products

The corrector allows astrophotography up to full-frame with the Askar 80ED at full focal length.

• The corrector is designed for the Askar 80 mm f/7 ED and ensures optimal field correction
• screwed connection to the focuser via the M58x1 thread
• thread on the camera side - M48x0.75
• Working distance 55 mm from the M48 thread
• Internal thread for 2" mounted filters (M48x0.75) is present
• 360° rotation for optimum orientation of the camera in relation to the object

The corrector allows astrophotography up to full-frame with the Askar 80ED while increasing the speed to f/5.95.

• The corrector is designed for the Askar 80 mm f/7 ED and provides optimal correction of the field
• The focal length is reduced to 476 mm and the focal ratio is improved to f/5.95.
• screwed connection to the focuser via the M58x1 thread
• thread on the camera side - M48x0.75
• Working distance 55 mm from the M48 thread
• Internal thread for 2" mounted filters (M48x0.75) is present
• 360° rotation for optimum orientation of the camera in relation to the object

The corrector allows astrophotography up to full-frame with the Askar 80ED while increasing the speed to f/4.9.

• The corrector is designed for the Askar 80 mm f/7 ED and provides an optimal correction of the field
• The focal length is reduced to 392 mm and the focal ratio is improved to f/4.9.
• screwed connection to the focuser via the M58x1 thread
• thread on the camera side - M48x0.75
• Working distance 55 mm from the M48 thread
• Internal thread for 2" mounted filters (M48x0.75) is present
• 360° rotation for optimum orientation of the camera in relation to the object

The Askar 80ED with 80 mm aperture and 560 mm focal length offers good color correction and is ideal for mobile use.Aperture 80 mm / focal length 560 mm / focal ratio f/7

• Improved color correction due to the use of ED glass
• High-quality dual-speed R&P 2" focuser - optimized for astrophotography
• Motorized focus systems, like ZWO-EAF can be adapted directly
• M58x1 external thread on the focuser for screw adaptations
• Correctors for astrophotography calculated for the ED available (0.7x, 0.85x and 1.0x)
• With a weight of only 2 kg and a transport length of 40 cm, ideal for traveling
• 2 finder shoes, CNC rings, dovetail bar, carrying handle included in the scope of delivery

This reducer reduces the focal length of the Askar 111F by a factor of 0.74x and significantly shortens the exposure time in astrophotography

•  The reducer was designed for the Askar 111F flat-field apochromat
•  The focal length is reduced to 566mm
•  The focal ratio is improved from f/6,9to f/5.1
•  A triplet design maintains the flat field
•  The reducer is screwed directly onto the M68x1 female thread of the apos´ M78-M54 adapter
•  The apo´s photo adapters can be used directly
•  The working distance from the M48x0.75 thread on the camera side is 55 mm

Quadruplet flat-field astrograph with a 111 mm aperture for observation and astrophotography

• Aperture 111 mm / Focal length 766 mm / Focal ratio f/6.9
• Quadruplet design with field corrector built into the tube
• Triplet objective with excellent chromatic correction thanks to an ED element, single element field corrector
• Illumination and field correction up to full-frame
• Retractable dew shield for easier transport
• 360° rotation for proper camera orientation
• 3" R&P focuser with M78, M54, M48 photo threads and 2" connection
• Connection option for 2" filters available
• Two finder shoes - 1 for a finder scope, 1 for a guide scope
• Including complete optics test by Teleskop-Service on the optical bench (autocollimation) - star image extrafocal, intrafo

This reducer reduces the focal length of the Askar 131F by a factor of 0.74x and significantly shortens the exposure time in astrophotography

•  The reducer was designed for the Askar 131F flat-field apochromat
•  The focal length is reduced to 727 mm
•  The focal ratio is improved from f/7.5 to f/5.5
•  A triplet design maintains the flat field
•  The reducer is screwed directly onto the M72x1 female thread of the apos´ M78-M54 adapter
•  The apo´s photo adapters can be used directly
•  The working distance from the M48x0.75 thread on the camera side is 55 mm

Quadruplet flat-field astrograph with a 111 mm aperture for observation and astrophotography

•  Aperture 131 mm / Focal length 983 mm / Focal ratio f/7.5
•  Quadruplet design with field corrector built into the tube
•  Triplet objective with excellent chromatic correction thanks to an ED element, single element field corrector
•  Illumination and field correction up to full-frame
•  Retractable dew shield for easier transport
•  360° rotation for proper camera orientation
•  3" R&P focuser with M78, M54, M48 photo threads and 2" connection
•  Connection option for 2" filters available
•  Two finder shoes - 1 for a finder scope, 1 for a guide scope
•  Including complete optics test by Teleskop-Service on the optical bench (autocollimation) - star image extrafocal, intrafocal and focal as well as Ronchi test and protocol - so you will get a 100% tested telescope.

Dieser hochwertige Sextuplet SD Glas Petzvalastrograph ist sehr gut für die Astrofotografie größerer Areale geeignet.

• Öffnung 60 mm
•  Brennweite 276 mm
•  Öffnungsverhältnis 1:4,6
•  Zwei SD-Elemente für sehr gute chromatische Korrektur
•  6-Element-Petzval-Konstruktion für Bildfeldkorrektur bis zum Vollbildformat
•  Anschlussgewinde M48x0,75 mit ausreichendem Backfokus
•  Geeignet für DSLR, spiegellose Systemkameras und Astrokameras
•  360°-Rotator für die Kamera
•  Auszug mit Untersetzung für präzise Fokussierung (Astrofotografie)
•  Zwei Sucherschuhe

• The SV550 122mm uses an FPL-51 triplet apochromatic lens configuration with one piece of ED glass. The triplet lens offers better correction of aberrations, significantly reduces chromatic aberrations and improves clarity and sharpness.
• The gear ratio of the dual-speed 2.5-inch rack-and-pinion focuser is 1:10, enabling precise focusing. The dual-speed focuser offers two focusing speeds via a set of coaxial knobs, for quick focusing and fine-tuning.
• The SV550 refractor is made from aluminium alloy and CNC-machined, giving it high quality for harsh environments and a longer service life.
• Compatible with 2-inch interface & M631 thread. The SV550 refractor is compatible with 2-inch and M631 accessories. At the front is a 2-inch adapter for connecting a camera or 2-inch accessories.
• The tube rings have 26 screw holes and a mounting screw handle. Tube rings with this many screw holes can be compatible with a wide range of devices, such as a smart Wi-Fi device, a guide scope, an astronomical camera, etc., to meet various installation requirements.