








Pleiades 111 Astrograph
Delve Deeper into the Universe with the Pleiades 111 Astrograph by William Optics, the Pinnacle of Advanced Astrophotography Equipment.
Elevate your celestial observations with the Pleiades 111 — 7-Elements Imaging APO Telescope. Designed for serious astrophotographers, this telescope features a cutting-edge internal focusing mechanism and superior apochromatic optics with FPL-53 glass. The Pleiades 111 is built to enhance imaging with large, high-resolution cameras, ensuring superb clarity and performance.
Highlights
Precision Optics
The Pleiades 111 features a septuplet 7-element optical system with a fast f/4.8 focal ratio, delivering sharp, vibrant images with minimal chromatic aberration.
Enhanced Imaging Capability
Boasting a 111mm aperture and 528mm focal length, this telescope captures expansive celestial scenes in detailed clarity.
Innovative Focusing and Design
Integrates an advanced internal focusing system with a camera angle rotator and tilt adapter, ensuring stability and ease of use while accommodating large astro-imaging setups. This innovation exemplifies the WIFD series’ commitment to top-tier astro-imaging technology.
Explore the night sky with unprecedented detail and precision with the William Optics Pleiades 111, a must-have for dedicated astrophotographers.
GuideStar Special









GuideStar 61
- Lens Type
- Doublet APO Prime Lens
- Focal Length
- 360 mm
- Diameter
- 61 mm
- Focal Ratio
- f/5.9
- Image Circle
- 42 mm
- Focuser
- Threaded Focuser
- Adapter Included
- M54 → 2" Visual Back
- Optional Flattener
- FLAT 61A 1.0x FLAT 61R 0.8x
- Tube Length
- 340 mm
- Total Weight
- 1.44 kg / 3.17 lbs
Accessory Add-ons
Guider










UniGuide 32mm f/3.75
- Lens Type
- Doublet Lens
- Focal Length
- 120 mm
- Diameter
- 32 mm
- Focal Ratio
- f/3.75
- Tube Length
- 147 mm
- Total Weight
- 0.23 kg / 0.51 lbs





Guiding Scope 50mm f/4.0
- Lens Type
- Doublet Lens
- Focal Length
- 200 mm
- Diameter
- 50 mm
- Focal Ratio
- f/4.0
- Tube Length
- 252 mm
- Total Weight
- 0.42 kg / 0.93 lbs










UniGuide 50mm f/4.0
- Lens Type
- Doublet Lens
- Focal Length
- 200 mm
- Diameter
- 50 mm
- Focal Ratio
- f/4.0
- Tube Length
- 252 mm
- Total Weight
- 0.5 kg / 1.1 lbs








GuideStar 61
- Lens Type
- Doublet APO Prime Lens
- Focal Length
- 360 mm
- Diameter
- 61 mm
- Focal Ratio
- f/5.9
- Image Circle
- 42 mm
- Focuser
- Threaded Focuser
- Adapter Included
- M54 → 2" Visual Back
- Optional Flattener
- FLAT 61A 1.0x FLAT 61R 0.8x
- Tube Length
- 340 mm
- Total Weight
- 1.44 kg / 3.17 lbs
Camera





ZWO ASI 120MM Mini
- Sensor
- AR0130CS CMOS ( color )
- Resolution
- 1280 x 960
- Pixel Size
- 3.75μm
- Sensor Size
- 1/3″ ( 4.8 mm x 3.6 mm )
- Max Frame Rate
- 35 fps
- Read Noise
- 4.0e
- Quantum Efficiency
- 80%
- Exposure Range
- 64µs-1000s
- ADC
- 12 bit
- Flange Distance
- 8.5mm
- Camera Thread
- M28.5
- Adapter Included
- 1.25" Extender ( 22mm ) CS → M28.5 Adapter ( 4mm )
- Interface
- ST4 USB 2.0 Type-C
- Cable Included
- ST4 ( 2m ) USB 2.0 Type A↔C ( 0.5 & 2m )
- Camera Weight
- 60 g / 2.1 oz
Camera Adapter






Elite Drawer OAG Kit
- Light-In Side
- M54, M48, M68
- Light-Out Side
- Main: M54, M48 ( M42 optional ) / Guide: M42, 1.25" push-in
- Optical Length
- 37.5 mm
- Weight
- 336 g / 11.85 oz



M48 T-mount for Nikon Z Mirrorless
- Light-In Side
- M48 (female)
- Light-Out Side
- Nikon Z Mirrorless Camera Mount
- Optical Length
- 38.4 mm






M48 T-mount for Nikon F
- Light-In Side
- M48 (female)
- Light-Out Side
- Nikon F Camera Mount
- Optical Length
- 8.2 mm



M48 T-mount for Canon EOS R Mirrorless
- Light-In Side
- M48 (female)
- Light-Out Side
- Canon EOS R Camera Mount
- Optical Length
- 34.4 mm






M48 T-mount for Canon EOS
- Light-In Side
- M48 (female)
- Light-Out Side
- Canon EOS Camera Mount
- Optical Length
- 10.6 mm



T-mount for Sony E
- Light-In Side
- M48 (female)
- Light-Out Side
- Sony E Camera Mount
- Optical Length
- 36.7 mm



M48 T-mount for Pentax K
- Light-In Side
- M48 (female)
- Light-Out Side
- Pentax K Camera Mount
- Optical Length
- 9.3 mm



M48 T-mount for Fuji FX
- Light-In Side
- M48 (female)
- Light-Out Side
- Fuji FX Camera Mount
- Optical Length
- 37 mm



M48 T-mount for Olympus Micro 4/3
- Light-In Side
- M48 (female)
- Light-Out Side
- Olympus Micro 4/3 Camera Mount
- Optical Length
- 35.6 mm


M48 → M42 Adapter
- Light-In Side
- M48 (female)
- Light-Out Side
- M42 (male)
- Optical Length
- 5.3 mm
EQ Mount







ZWO AM5N RedCat Limited Edition
ZWO x William Optics Co-branded Limited Edition
Traditional equatorial mounts often require heavy counterweights, making them cumbersome to transport and balance. The AM5N addresses these challenges with a compact, counterweight-free design, offering enhanced portability and stability for amateur astrophotographers. Its optimized internal structure incorporates harmonic drive reducers and timing belts, delivering precise control and a 300:1 reduction ratio. The mount operates in both equatorial and alt-azimuth modes and can be controlled via Wi-Fi, Bluetooth, or a handheld controller.
Key Features
Enhanced Portability and Stability
Weighing only 5.5 kg, the AM5N supports payloads up to 15 kg without counterweights and up to 20 kg with counterweights, maintaining a balance between portability and performance.
Custom Harmonic Drive System
The AM5N features a custom harmonic drive system with a synchronous belt, ensuring high torque, zero backlash, and low periodic error of ±10 arcseconds.
Integrated Cable Management
Internal cable routing through the DEC saddle allows for seamless power and control connections, reducing cable clutter and the risk of snags during operation.
Dual Mount Modes
Switch effortlessly between equatorial and alt-azimuth modes using the ASI Mount App or the included hand controller. A status LED indicates the current mode: red for equatorial and green for alt-azimuth.
Wide Latitude Adjustment
The mount offers a full 0°–90° latitude adjustment range, accommodating various observing locations and setups.
Wireless and Wired Control Options
Control the AM5N via Wi-Fi, Bluetooth, or USB-C connections. The mount is compatible with the ASIAIR system and supports ASCOM and INDI protocols for versatile operation.
Power Failure Protection
An RA axis brake system engages automatically during power failures, safeguarding your equipment from potential damage.
Seamless ASIAIR Integration
The AM5N integrates seamlessly with ZWO's ASIAIR system, providing an optimized astrophotography experience through wired or wireless connections.




Mounting




Vixen-style Dovetail Plate
- Length
- 290 mm
- Width
- 90 mm
- Dovetail Type
- Vixen
- Weight
- 0.64 kg / 1.42 lbs










Pair of Riser Blocks
- Length
- 73.5 mm
- Width
- 20 mm
- Height
- 20 mm
- Telescope
- C-71,91 GT-81WIFD,102 Z-103 P-111 UC-76 FLT-91,120
- Weight
- 136 g / 299.83 lbs
Tripod







Pier Mount 90
- Adapter
- 3/8" Thread ( for ZWO AM3/AM5 )
More EQ Mount types are optional - Weight
- approx. 7 kg
- Loading Capacity
- 90 kg / 198 lbs
- Height
- Stance: 89.3 cm Closed: 79.3 cm Foot Adjustable Height Range: 15 mm
- Material
- Aluminum Alloy
- Pillar Diameter
- 100 mm / 4"
![[Bundle] ZWO Mount Upgrade Kit](http://686485-4.myshopify.com/cdn/shop/files/ZWOMountUpgradeKit.jpg?v=1724140371&width=2400)
[Bundle] ZWO Mount Upgrade Kit
Make your ZWO AM3/5 tripod kit load-bearing and stable.


Tripod Extrapadding Backpack
This Tripod Extrapadding Backpack is specifically designed for astro EQ mounts tripod, offering added support and protection for your equipment.
- Thickness: 22mm
- Size: approximately 20 × 20 × 67 cm, with a measurement tolerance of ±3 cm.














Camouflage Tripod Pouch
Featuring durable Velcro straps for secure attachment, this pouch offers ample storage space to make your wildlife observation experience more convenient.
- Lens Type
- 7-Element Astrograph
- Lens Elements
- Super ED Glass x3
- Focal Length
- 528 mm
- Diameter
- 111 mm
- Focal Ratio
- f/4.8
- Image Circle
- 45 mm
- Focuser
- WIFD R&P Focuser Compatible with EAF
- Focuser Travel
- 0-35 mm (Ruler to 50)
- Adapter Included
- Tilt Adjuster Rotator M48 Camera Adapter M54 Camera Adapter
- Optional Flattener
- No Flattener Required
- T-Mount Support
- Canon EF, RF Nikon F, Z Sony E Pentax K MFT (M4/3) FUJI X
- Camera Format
- Full Frame APS-C M4/3
- Dovetail Type
- Losmandy
- Tube Length
- 645 mm - 785 mm
- OTA Weight
- 7.95 kg / 17.53 lbs
- Total Weight
- 10.31 kg / 22.73 lbs
Choose options









Delve Deeper into the Universe with the Pleiades 111 Astrograph by William Optics, the Pinnacle of Advanced Astrophotography Equipment.
Elevate your celestial observations with the Pleiades 111 — 7-Elements Imaging APO Telescope. Designed for serious astrophotographers, this telescope features a cutting-edge internal focusing mechanism and superior apochromatic optics with FPL-53 glass. The Pleiades 111 is built to enhance imaging with large, high-resolution cameras, ensuring superb clarity and performance.
Highlights
Precision Optics
The Pleiades 111 features a septuplet 7-element optical system with a fast f/4.8 focal ratio, delivering sharp, vibrant images with minimal chromatic aberration.
Enhanced Imaging Capability
Boasting a 111mm aperture and 528mm focal length, this telescope captures expansive celestial scenes in detailed clarity.
Innovative Focusing and Design
Integrates an advanced internal focusing system with a camera angle rotator and tilt adapter, ensuring stability and ease of use while accommodating large astro-imaging setups. This innovation exemplifies the WIFD series’ commitment to top-tier astro-imaging technology.
Explore the night sky with unprecedented detail and precision with the William Optics Pleiades 111, a must-have for dedicated astrophotographers.


