APM offers you a comprehensive selection of different telescopes for every requirement and budget. We can offer you various mirror telescopes, refractors and catadioptric telescopes, from a simple entry-level telescope to a 1.5m observatory telescope.
SVBONY SV550 122mm ED F/7 APO OTA, apochromatic with fine-focus Rap focuser for astrophotography & visual observation
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.
1499.00 €
Estimated delivery time : 1-2 weeks
(valid for new orders)
The William Optics ZenithStar 81 mm aperture Doublet APO Refactor is an
extremely versatile telescope ideal for both astrophotography and
general photography.
Two element APO design with FPL53 glass
Massive 2.5" R&P extension with 1/10 gear reduction
High quality CNC machined ALU tube
With tube clamps, mounting handle and mounting plate
1490.00 €1415.50 €
Estimated delivery time : on request
(valid for new orders)
William offers with the RedCat 71 WIFD astrograph a very well corrected telescope for astrophotography up to full frame format.
Aperture 71 mm / Focal length 350 mm / Focal ratio f/4.9
Petzval design with chromatic aberration free FPL53 objective (4 elements in 3 groups)
Very well corrected and illuminated image field up to full frame format - the corrector is built in - no more adapter battle necessary
Camera connection via M48 male thread (suitable adapters are available) - working distance 55 mm
360° rotation of the camera for the right display window
Focusing via internal focusing (William Internal Focus Design - WIFD) as with telephoto lenses
Tilting option for individual adjustment of the camera sensor to the telescope
Flexible dovetail bar at the base (long version), suitable for Vixen style and Arca-Swiss saddle plates, in addition with 1/4" female photo tripod thread
Nylon carrying bag and Bahtinov mask for astrophotography are included in delivery
WIFD R&P focuser - copatible with EAF
1490.00 €1415.50 €
Estimated delivery time : 1-4 days
(valid for new orders)
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
1398.00 €
Estimated delivery time : 1-4 days
(valid for new orders)
The apochromatic refractor with 90 mm aperture and 540 mm focal length offers highest optical and mechanical performance for astrophotography and amateur astronomy
1397.00 €
Estimated delivery time : 1-4 days
(valid for new orders)