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.
New ! Adjustable Flat61 for William Optics ZS61 II Telescopes
- Compensates for field curvature and enables sharp images at the edges
- Camera can be mounted directly with M48 camera adapter
- Suitable for refractors from f/5 to f/7
- Distance to chip plane is variably adjustable
309.00 €
Estimated delivery time : 1-4 days
All New Adjustable Flat6AIII (T-mount not included)
399.00 €
Estimated delivery time : 1-4 days
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 €
Estimated delivery time : 1 week
Discover the ultimate accessory for your astrophotography experience - the William Optics Flattener 68III!
- Optimized for full-frame photography
- Variable adjustable distance to chip
- No focal length change
- M48 filter thread
749.00 €
Estimated delivery time : 1 week
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 €
Estimated delivery time : 1 week
Perfect astrophotography: Whether you are an experienced astrophotographer or an enthusiastic beginner - with this Reducer Flattener you can take impressive pictures with ease.
A valuable addition for the large refractors from William Optics
- Image correction right to the edge
- Reduction factor 0.72x
- M92 threaded connection to the telescope
- Universal connection with M48 to camera or filter wheels etc.
- Very high quality workmanship
889.00 € 795.00 €
Estimated delivery time : 1-2 days
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
799.00 €
Estimated delivery time : 3-4 days
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 €
Estimated delivery time : 1 week
From the beginning, the goal was to create the best possible design for an affordable, small, lightweight, and fast Apochromatic refactor for astrophotography.
Characteristics:
- 4 lens Petzval optical design
- Aperture 51mm, focal lenght 250mm, f/4.9
- Massive OTA from Aluminum alloy
- Compact and ultra portable
- Field rotator
- Helical focuser design
- Tilting platform
- Field illumination even for full frame sensors
1061.00 €
Estimated delivery time : 1-4 days
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
1190.00 €
Estimated delivery time : 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
1425.00 €
Estimated delivery time : 1-4 days
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 €
Estimated delivery time : on request
