William Optics
Corporate
In a relatively short time, William Optics has established itself and its products as one of the world leaders in short-tube, highly-portable refractors, and has achieved quality recognition for many accessories such as the well celebrated WO Diagonals.
We plan to keep producing fine instruments both for the entry-level and the top-end segments. In the coming year, you will have many pleasant surprises: on top of a whole new range of larger Apochromatic telescopes, we will begin marketing new accessories and binoculars for all pockets.
In a relatively short time, William Optics has established itself and its products as one of the world leaders in short-tube, highly-portable refractors, and has achieved quality recognition for many accessories such as the well celebrated WO Diagonals.
We plan to keep producing fine instruments both for the entry-level and the top-end segments. In the coming year, you will have many pleasant surprises: on top of a whole new range of larger Apochromatic telescopes, we will begin marketing new accessories and binoculars for all pockets.
Innovative and revolutionary William Optics design combines precise internal focusing with the highest quality optics available to create the ultimate apochromatic refractor for astrophotography
- FPL53 Triplet Lens
- Aperture 81 mm, focal length 480 mm
- Internal focusing prevents image shift and vignetting
- Saddle bar handle for mounting the guiding telescope
- Incl. test report
- Incl. carrying bag
1999.00 €
Delivery date : 1 week
William Optics Guide Star 61: An excellent GuideScope for astrophotography.
Perfect optics with FPL53 glass and exemplary mechanical design.
Perfect optics with FPL53 glass and exemplary mechanical design.
- Very high quality optics
- Universal use (as a guider or astrophotographic telescope)
- Compatible with Flattener 61
- Usable as guider with 360mm focal length for primary optics with focal lengths between 700mm and 1200mm
659.00 €
Delivery date : 1 week
![Picture of Camera Angle Rotator for 2.5" M63 Focuser](https://www.apm-telescopes.net/images/thumbs/0439097_caa63_640.jpg "Show details for Camera Angle Rotator for 2.5" M63 Focuser")
All New Camera Angle Rotator for 2.5" M63 Focuser
Fits :
Fits :
Z73, Z103, Z126, GT71, new 2018 GT81 and all other brand Focuser with M63 threads.
149.00 €
Delivery date : 1 week
William offers with the REDCAT71 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 precise helical focuser like 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
2090.00 €
Delivery date : 1-2 weeks
All New Adjustable Flat6AIII (T-mount not included)
369.00 €
Delivery date : 1-4 days
This Reducer Flattener is designed to take the optical performance of your telescope to a new level. With a reduction factor of X0.8 and an outstanding flattener function, it minimizes distortions and aberrations that can occur during observation and photography.
The 0.8x Flattener corrector from William Optics is optimized for full-frame format and suitable for all apos from 102mm aperture with large extensions.
- Connection thread on the telescope side M92x1 - adapters to M68 or M54 are optionally available
- The distance is precisely adjustable, so the corrector can be individually
- optimized to the refractor for best possible stars
- Triplet design with Ohara glass (Japan)
- M48x0.75 camera mount with possibility to screw in 2" filter
789.00 €
Delivery date : 1 week
Superior optics for stunning images
The Zenithstar 73 III APO is an apochromatic refractor telescope that impresses with excellent color correction and sharpness. Using high-quality optics, chromatic aberrations are effectively minimized, so you get clear, high-contrast, true-color images.
- Dual element design with FPL53 glass
- Massive 2.5" R&P focuser
- CNC machined ALU tube
- High quality tube clamps and mounting plate
- Integrated handle
999.00 €
Delivery date : 1 week
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 €
Delivery date : on request
