Highlights
Superior Optical Precision
The William Optics Pleiades series features advanced 7-element optical systems, ensuring sharp, vibrant images with minimal chromatic aberration, perfect for capturing detailed celestial scenes.
Versatile Imaging Capabilities
Catering to diverse astrophotography needs, the Pleiades 68 offers rapid deep-sky imaging, the Pleiades 111 enhances performance for high-resolution cameras, and the Pleiades 181 is optimized for medium format cameras, ensuring broad compatibility and stunning results.
Innovative and User-Friendly
Each Pleiades model boasts user-friendly features, such as the Pleiades 111's advanced focusing system and the Pleiades 181's Cosmos Steering Wheel, providing precise control and ease of use for both seasoned and aspiring astrophotographers.
Pleiades.
7 Elements
APO Design
with Three Ohara ED Glasses
Minimizes chromatic aberration
Our advanced optical system is engineered to deliver sharp, vibrant images with true-to-life colors, significantly reducing chromatic aberration.
Three Extra-low Dispersion (ED) glasses
Integrated into our design to enhance image clarity by reducing color fringing and improving contrast.
Needs NO Flattener
The 7-element design inherently flattens the field, eliminating the need for an external field flattener.
Superior color correction and sharpness
Using super ED glass, our system ensures superior color correction and sharpness across the entire field of view.
High-precision polishing
Our lenses undergo high-precision polishing, setting a standard of excellence that surpasses industry norms, ensuring optimal performance in all conditions.
Sharp And Quick Aperture
| Pleiades 68 | Pleiades 111 |
|---|---|
| f/3.8 | f/4.8 |
| Pleiades 181 | |
| f/5.5 |
WIFD Focuser
The William Optics Internal Focus Design (WIFD) relocates the focuser to the center of the telescope.
This design effectively eliminates tube tilt issues caused by the weight of cameras and accessories. By ensuring a balanced structure and precise internal sliding of fixed optics, the WIFD system delivers stable, clear observations while maintaining a dust-free and easy-to-maintain focuser environment.
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Fast and accurate focusing
IntegratedBahtinov maskin dew shield cap (Patent number: US 10,564,409 B2) ensures precise focusing. Made of high-definition and stable optical PMMA. Enhances astrophotography experience with quick and accurate adjustments.
Just For Astrophotography
Tilt Adjuster
The built-in tilt adjuster makes it easy to correct camera sensor tilt problem.
Camera Angle Rotator
Correct any angular discrepancies, and get the perfect angle on your images.
Direct connection to Astro Camera
Equipped with M48 and M54 adapters, directly connect to your astro-camera.
Pleiades 68
- Full-Frame
- APS-C
Pleiades 111
- Medium Format
- Full-Frame
- APS-C
Pleiades 181
- Medium Format
- Full-Frame
- APS-C
Which Product is right for you?
Pleiades 68 $1,998.00 View |
昴宿星團 111 $3,798.00 View |
Pleiades 181 $18,998.00 View |
|
|---|---|---|---|
| Lens Type | 7片射星鏡設計（包含3片高消色散鏡片） | 7-Element Astrograph | 7-Element Astrograph |
| Focal Length | 260 公釐 | 528 公釐 | 998 公釐 |
| Diameter | 68 公釐 | 111 公釐 | 181 公釐 |
| Aperture | f/3.8 | f/4.8 | f/5.5 |
| Image circle | 48 公釐 | 45 公釐 | 55 公釐 |
| Focuser |
WIFD (中置式調焦系統)
與EAF電動調交器相容 |
WIFD R&P Focuser
Compatible with EAF |
4.1” R&P Focuser
Compatible with EAF |