William Optics Pleiades 68

The William Optics Pleiades 68 is a refractor with seven elements that is designed for precise wide field imaging thanks to its fast f/3.8 focal ratio. The inclusion of multiple elements in its design significantly enhances optical performance by effectively improving color accuracy, light transmission and contrast.

William Optics Pleiades 68The William Optics Pleiades 68 supports up to full frame imaging with its 45mm image circle. By supporting full frame sensors and having a fast focal ratio, wide field imaging will be available in extraordinary detail and color with very little risk of vignetting at the edge of the field of view due to the wide illumination of the sensor. The inclusion of 48mm and 54mm adapters expands the telescope’s compatibility with a variety of cameras, providing flexibility for different imaging setups.

The Pleiades 68 incorporates William Optics’ patented WIFD internal focusing system, eliminating obstructions commonly associated with external rear focusers. This internal focusing system offers a sleek appearance and reduces the risk of vignetting, unwanted shifts, and jolts that can lead to misalignment of optical elements during the focusing process.

With the WIFD design, the movement of the focuser is integrated inside the main tube assembly providing the benefits of a traditional two speed fine focuser, while not worrying about limitations typically found in traditional rear mounted focusers. The WIFD design includes the patented William Optics center focuser with precise internal sliding of fixed optics to prevent image shift. The integrated position viewing window on the focuser provides instant verification of the graduated numerical display.  The smooth rack and pinion design is incorporated into the focuser to provide super fine adjustability for critical focus.  The internal movement of the optical elements is protected from the elements and can’t come out of alignment. The redistribution of weight allows for better balance during imaging sessions.

Another benefit is motorized focusing functionality as it offers ZWO EAF compatibility. The focuser has dedicated mounting points for the EAF and similar style electronic focusers, which makes makes it a simple process to motorize the telescope . Other benefits include a more standard focuser tension/lock adjustment and better cable management.

In addition to the M48 and M54 adapter rings the William Optics Pleiades 68 comes with mounting rings, CNC handlebar, dovetail plate, Bahtinov Mask cover and soft carry case.

The William Optics Pleiades 68 specifications include:

– Aperture: 68mm

– Focal Length: 258mm

– Focal Ratio: f/3.8

– Focus Type: Internal WIFD

– Image Circle: 45mm

– Optical Tube Length: 34.6cm retracted, 41cm extended

– Optical Tube Diameter: 68mm

You can learn more about the William Optics Pleiades 68 here.

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