List of products by brand William Optics

William Optics Flat GT (85079)
William Optics Flat GT (85079)
281.82 $
Tax included
A field flattener is a lens designed to correct the natural field curvature produced by primary telescope optics. This curvature can make stars at the edge of an image appear less sharp. By using a flattener, also known as a field flattener, this effect is corrected, resulting in astrophotography images where stars are sharp all the way to the edge. The flattener is positioned between the telescope and the camera.
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William Optics Flat6A III Special Edition FLT91(73852)
William Optics Flat6A III Special Edition FLT91(73852)
508.04 $
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A field flattener is a lens that corrects the natural field curvature created by a telescope's primary optics. Without this correction, stars near the edge of your image may appear less sharp. The flattener is placed between the telescope and the camera, allowing astrophotographers to capture images with consistently sharp stars across the entire field. This particular field flattener is specially designed for the William Optics Fluorostar FLT 91. 
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William Optics Guidescope 50mm f/4.0 RotoLock (82921)
William Optics Guidescope 50mm f/4.0 RotoLock (82921)
159.48 $
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This guidescope is designed to be mounted parallel to your main telescope tube, ideally using guide scope rings for easy adjustment and alignment. A compatible camera can be attached to the end of the guidescope to control the mount's tracking, enabling accurate long-exposure night sky photography. Cameras suitable for guiding typically use a 1.25" socket, allowing for a straightforward connection to the guidescope.
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William Optics Guidescope 50mm (69410)
William Optics Guidescope 50mm (69410)
159.48 $
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This guidescope is mounted parallel to the main telescope tube, ideally using guide scope rings for easy positioning and adjustment. You can attach a compatible camera to the end of the guidescope to enable automated tracking, which is essential for long-exposure astrophotography. Guiding cameras usually have a 1.25" socket for straightforward connection to the guidescope.
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William Optics Red dot finder with quick-release bracket and base (4704)
William Optics Red dot finder with quick-release bracket and base (4704)
120.79 $
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This practical Red Dot Finder is supplied with a convenient T-bracket, making it easy to mount on William Optics telescopes, including the ZS66 and ZS80 models. Finding objects in the night sky is simple with this finder. Look through the finder with one eye while keeping the other eye open, and you'll see one of four selectable shapes projected by the LEDs onto the sky, helping you easily align your telescope.
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William Optics Tube clamps 90mm (4697)
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William Optics Tube clamps 90mm (4697)
178.35 $
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These 90mm mounting rings are constructed from solid aluminium and feature a powder-coated finish. The interior is lined with felt, making them compatible with most tubes of similar outer diameter and all William Optics 80mm telescopes, including all Megrez 80 and Zenith Star 80 models. This is a valuable accessory for anyone looking to maximize the performance and versatility of their telescope mount.
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William Optics Losmandy Swan Series 400mm red (70815)
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William Optics Losmandy Swan Series 400mm red (70815)
150.04 $
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Prism rails, also known as dovetail bars, are primarily used to attach telescopes to astronomical mounts. These rails can also serve as mounting points for additional accessories on the telescope tube, such as a camera or internal expansion joint. In astronomy, there are two main standards for these rails. The first is the narrower design introduced by Vixen, a Japanese manufacturer. The second is the wider Losmandy standard, which is 3 inches wide and designed for heavier optical equipment.
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William Optics Losmandy Swan Series 400mm gray (70817)
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William Optics Losmandy Swan Series 400mm gray (70817)
187.79 $
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Prism rails, also known as dovetail bars, are primarily used for mounting telescopes onto astronomical mounts. They are also commonly used to attach additional accessories to the telescope tube, such as an internal expansion joint or a camera. There are two main standards for these rails in astronomy. The first is the narrow rail standard developed by the Japanese manufacturer Vixen. The second is the wider Losmandy standard, which measures 3 inches across and is typically used for heavier optical equipment
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William Optics Vixen-Style 290mm Prism Rail red (71285)
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William Optics Vixen-Style 290mm Prism Rail red (71285)
140.6 $
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Prism rails, also known as dovetail bars, are mainly used to mount telescopes onto astronomical mounts. They can also be used to attach additional accessories to the telescope tube, such as a camera or an internal expansion joint. There are two main standards for these rails in astronomy. The first is the narrower Vixen standard, created by the Japanese manufacturer Vixen. The second is the wider Losmandy standard, which is 3 inches wide and intended for heavier optical equipment.
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William Optics Rotator M92 (69534)
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William Optics Rotator M92 (69534)
244.41 $
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A rotating adapter allows you to attach a camera or other accessories to your telescope and rotate them around the optical axis. This makes it possible to choose the ideal sensor rotation angle for each target when doing astrophotography. This is a newly designed 3-inch camera angle rotator from William Optics. It is compatible with all William Optics focusers and other brands that use M92 and M83 threads.
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William Optics rotator Rotolock Visual Back 3.5 red (70122)
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William Optics rotator Rotolock Visual Back 3.5 red (70122)
263.28 $
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This high-quality adapter is designed for the 3.5-inch focusers on large FLT refractors from William Optics. It functions as a visual back and operates using the "Twist-Lock" or "ClickLock" clamping system. By turning the locking ring, eyepieces and accessories are held securely in place without any risk of tilting. The Rotolock adapter screws directly onto the 3.5-inch extension tube of the FluoroStar refractor using a threaded connection. On the eyepiece side, it provides a standard 2-inch opening.
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William Optics rotator Rotolock Visual Back 3.5 blue (70123)
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William Optics rotator Rotolock Visual Back 3.5 blue (70123)
263.28 $
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This high-quality adapter is designed for the 3.5-inch focusers used on large FLT refractors from William Optics. It acts as a visual back and uses the "Twist-Lock" or "ClickLock" clamping method. By turning the locking ring, eyepieces and accessories are held securely and gently, preventing any tilting. The Rotolock is screwed directly onto the 3.5-inch extension tube of the FluoroStar refractor using a threaded connection. The eyepiece side provides a standard 2-inch opening.
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William Optics rotator Rotolock Visual Back 3.5 gold (70124)
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William Optics rotator Rotolock Visual Back 3.5 gold (70124)
263.28 $
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This premium adapter is made for the 3.5-inch focusers found on large FLT refractors from William Optics. It functions as a visual back and utilizes the well-known "Twist-Lock" or "ClickLock" system, allowing eyepieces and accessories to be clamped firmly and gently with a simple turn—eliminating any risk of tilting. The Rotolock screws directly onto the 3.5-inch extension tube of the FluoroStar refractor using a threaded connection. On the eyepiece side, a standard 2-inch opening is provided.
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