William Optics Pleiades 181 Septuplet APO Refractor
A Massive Refractor for Medium Format Imagers!
William Optics' excellent seven element Pleiades series comes to the Medium Format imager, with the Pleiades 181 Septuplet APO Refractor! Supporting a massive 55 mm image circle with its 181 mm of aperture and advanced optical design, this scope takes a spot as one of the premier refractors on the market today. Experience the leading edge of large sensor coverage and refractor optics with this titan from William Optics!
Featuring a massive refractor aperture of 181 mm (7.12") and a fast focal ratio of f/5.5, the William Optics Pleiades 181 Septuplet APO Refractor offers excellent signal collection capabilities from its 998 mm focal length optics. Featuring a temperature-compensated seven element optical design with three Super ED lenses, the images provided by this scope are chromatic aberration free, clear, and corner-to-corner crisp—no addition corrective elements required! These views cover a 55 mm image circle, allowing you to capture stunning deep sky images with everything from Micro 4/3 cameras all the way up to huge Medium Format imagers! This is all packed into a premium hardware platform, featuring a stout 4.1" rack and pinion focuser, sturdy scope ring system, and William Optics' novel Cosmic Steering Wheel! If creating sharp, clear, and breathtaking astrophotos is your goal, than this is the telescope for you!
A Premium Large Refractor Option!
With powerful optics, a unique Cosmic Steering Wheel, sturdy focuser, and core accessories, the William Optics Pleiades 181 Septuplet APO Refractor is one of the premier options for those looking for a large lens system.
181 mm Aperture Septuplet Optics
The Pleiades
series from William Optics feature seven element optical designs that
provide sharp, corrected, and fast views straight out of the scope, and the
Pleiades 181 Septuplet APO Refractor is no exception. This f/5.5, 181 mm
aperture, septuplet telescope integrates 3 Super ED glass lenses into its
advanced optical design to provide a crisp, apochromatic, corrected 55 mm
image circle without the need for additional flatteners or reducers. This
998 mm focal length optical design additionally features a
temperature-compensated lens system for minimal thermal distortion, ensuring
your images remain tack sharp across the full image.
Cosmic Steering Wheel
Handling a large refractor can
be a daunting task, but with the Cosmic Steering Wheel William Optcis has
made being at the helm easy! This large, sturdy, red anodized aluminum gives
you secure grip point that extends 360°, ensuring you can comfortably
handle, rotate, and position the telescope. Used in conjunction with the
solid triple ring and top handle, you can maneuver this scope with
confidence!
Powerful Focuser
The larger coverage of Medium Format
comes with larger supporting equipment requirements, which means heavier
imaging payloads. Ensuring the Pleiades 181 Septuplet APO Refractor is up to
the task, William Optics has included a sturdy 4.1" focuser! This massive
rack and pinion focuser is capable of holding even stout Medium Format
builds, with dual speed built-in and EAF support for nailing fine focus!
Included Accessories
Completing this premium offering
from William Optics are a number of handy accessories! A triple ring,
D-style dovetail mounted and large top rail supported, cradle allows for
secure mounting of this 33.07 lb. OTA for a fully assembled weight of 41.23
lb. The top rail is a convient carry handle and doubles as an attachment
point for supporting accessories. To connect and adjust your imaging gear,
the Pleiades 181 Septuplet APO Refractor includes a tilt-adjuster along with
M68, M54, and M48 camera adapters.
Astronomy Hub: Your one-stop-shop for Astrophotography Knowledge!
Our Gear Experts have compiled a wealth of information to help expand your astrophotography knowledge! Below you’ll find links to articles, videos and "how-to" guides. Just one more reason that our Astronomy Hub is a one-stop-shop for all your astronomy and astrophotography needs!
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