William Optics Apochromatic refractor Pleiades 111 AP 111/528 Astrograph OTA

The William Optics Pleiades 111 mm APO is a flagship telescope designed for professional astrophotography. As part of the renowned Pleiades series, this model integrates the latest advancements from William Optics, setting a new standard in the compact astrograph market.

At the core of this telescope lies a seven-element optical system, featuring three low-dispersion super ED glass lenses. This design delivers outstanding chromatic aberration correction, resulting in sharp, detailed images. Its high light-gathering power and large aperture make it ideal for capturing intricate celestial details.

The Pleiades 111 mm APO is equipped with William Optics' patented WIFD (William Optics Internal Focus Design) system, which ensures perfect focusing alignment, even when using large SLRs or heavy astronomical cameras. This internal focusing mechanism eliminates any risk of vignetting, allowing for crisp, full-frame images. The focuser is also compatible with the William Optics EAF automatic focusing system, adding even more versatility to the telescope.

The telescope is mounted on precision CNC-machined clamps, which are equipped with a socket for attaching a finder or guide scope, making it a highly versatile tool for various astrophotography configurations.

William Optics Pleiades 111 mm APO Key Features:

• Seven-element apochromatic refractor with three super ED glass lenses
• WIFD internal focusing system for flawless, vignetting-free performance
• Compact, portable design ideal for mobile astrophotography
• Precision CNC-machined mounting clamps for secure and stable installation

Included Components:

• William Optics Pleiades 111 mm APO Telescope
• Dew Shield
• M54 to M48 Adapter
• Losmandy-Style Dovetail
• Bahtinov Mask with Mount
• Lens Cap
• Mounting Clamps
• Transport Cover

Technical Specifications:

• Optical System: Apochromatic refractor
• Lens Configuration: 7-element system
• Low-Dispersion Lenses: 3 super ED glass lenses
• Lens Diameter: 111 mm
• Focal Length: 528 mm
• Aperture: f/4.8
• Fully Illuminated Disc Diameter: 45 mm
• Compatible Cameras: Full-frame, SLR, mirrorless, CMOS, CCD
• Camera Mount Compatibility: Canon EF, Canon RF, Nikon F, Nikon Z, Sony E, Pentax K, Micro 4/3, Fuji X (via interchangeable T-rings)
• Focusing System: Internal focusing (WIFD)
• Tube Length (with dew shield extended): 785 mm
• Mounting Bracket: Losmandy-style dovetail
• Rotator: Yes, 360°
• Camera Connection Threads: M54 / M48
• Tube Weight: 7.95 kg
• Weight with Mounting Clamps: 10.3 kg
• Finish: Blue

Warranty:
24 months