List of products by brand William Optics

William Optics Zenithstar ZS 61 II APO (dublet APO FPL53 61 mm f/5,9, 2" R&P, Z61, red)

582.09 $

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Discover the William Optics ZenithStar ZS 61 II APO, a premium refractor telescope offering exceptional optical performance at an unbeatable price. Equipped with a 61mm f/5.9 doublet APO lens made from FPL53 synthetic fluorite, it rivals pricier triplet models, delivering crisp, clear images ideal for astrophotography. The sturdy 2" R&P focuser ensures smooth operation, while its striking red finish adds a touch of elegance. Perfect for both seasoned astronomers and budding astrophotographers, the ZS 61 II APO balances affordability and quality, making it a must-have for anyone passionate about exploring the night sky.

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William Optics Zenithstar 73 III GD / Gold (SKU: A-Z73IIIGD)

679.14 $

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Discover the William Optics Zenithstar 73 III GD / Gold, a top-tier telescope that combines compact design with exceptional optical performance. As the latest in the Zenithstar series, it offers stunning clarity for both astrophotography and stargazing. Renowned for its precise craftsmanship, this telescope ensures superior image quality, making it a must-have for enthusiasts and professionals alike. Elevate your celestial observations with the Zenithstar 73 III GD / Gold. (SKU: A-Z73IIIGD)

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William Optics RedCat 51 APO 250 mm f/4,9 v1.5 (SKU: L-RC51Ix)

815 $

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Discover the William Optics RedCat 51 APO 250mm f/4.9 v1.5 telescope, SKU: L-RC51Ix, a compact yet powerful tool for both astrophotography enthusiasts and nature photographers. Manufactured in Taiwan, this apochromatic telescope is designed to deliver exceptional clarity and detail. Perfect for exploring deep sky wonders or capturing the beauty of nature, the RedCat 51 ensures unparalleled performance with its fine-tuned focus and high-quality optics. Experience the universe like never before with this innovative telescope, ideal for those seeking to expand their photographic horizons.

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William Optics RedCat 51 II APO 250 mm f/4,9 v2 (SKU: L-RC51II)

970 $

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Discover the exceptional William Optics RedCat 51 II APO telescope, a masterpiece from the renowned Taiwanese manufacturer. Ideal for both Deep Sky astrophotography and nature photography, this compact apochromatic refractor offers unparalleled image quality with a 250mm focal length and f/4.9 aperture. The RedCat 51 II's sleek design ensures portability and easy setup, making it perfect for adventurers and stargazers alike. Capture the universe and nature's beauty with striking clarity using this innovative telescope.

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William Optics Gran Turismo GT 71 AP Astro Package Red (SKU: A-F71GTII-RD-AP)

1028.51 $

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Discover the William Optics Gran Turismo GT 71 II Astro Package in striking red, a standout in the compact apochromat realm. This exquisitely designed telescope combines vibrant red and white accents for a visually stunning look. Beyond aesthetics, it delivers unbeatable color correction and image sharpness, ensuring an exceptional stargazing experience. Precision-engineered to surpass competitors in both design and functionality, the Gran Turismo GT 71 II is your gateway to the cosmos. Elevate your astronomy adventures with this premium telescope. SKU: A-F71GTII-RD-AP.

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William Optics Gran Turismo GT 81 WIFD Red (SKU: T-GT81RD-WIFD)

1799 $

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The William Optics Gran Turismo GT 81 WIFD in red is a compact, high-performance apochromatic telescope designed for astrophotography enthusiasts. Featuring cutting-edge optical technology, it captures high-resolution images of celestial objects with exceptional detail, contrast, and color. Its standout feature, the patented WIFD (William Optics Internal Focus Drive) system, enhances focusing accuracy significantly. This model not only delivers superior image quality but also boasts an attractive red finish. Ideal for those seeking excellence in astrophotography. Item number: T-GT81RD-WIFD.

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William Optics RedCat 71 mm APO 350 mm f/4,9 (SKU: T-C-71RD) (73030)

1840 $

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Discover the William Optics RedCat 71 mm APO 350, a game-changer in professional astrographs. Featuring a 71mm aperture and f/4.9 design, it delivers exceptional field correction and image sharpness across the entire view. Its advanced control over chromatic aberrations makes it perfect for astrophotography and detailed observations. The 350mm focal length offers a wide-angle view, ideal for capturing vast celestial scenes. With its sleek, compact design and the trusted reliability of William Optics, the RedCat 71 is essential for both amateur astronomers and seasoned professionals seeking top-tier performance.

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William Optics Fluorostar 91 (aka FLT-91) RD / red OTA (SKU: T-FLT-91RD-RP33) (69900)

2200 $

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Discover the William Optics Fluorostar 91 (FLT-91), a premium Optical Tube Assembly designed for serious astrophotographers. This advanced refractor boasts superior image clarity, minimizing optical aberrations with a remarkable Strehl coefficient of over 0.95. Crafted with exceptional materials and attention to detail, the FLT-91 sets a new standard for astrophotography. Its striking red design and unparalleled performance make it a standout choice for capturing the night sky. Elevate your astrophotography experience with the FLT-91, SKU T-FLT-91RD-RP33.

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William Optics Losmandy Swan Series 400mm gold (70816)

174.82 $

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Prism rails, commonly referred to as dovetail bars, are primarily utilized for mounting telescopes onto astronomical mounts. These rails also serve to attach additional accessories to the telescope's lens tube, such as internal expansion joints or cameras.

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William Optics Diagonal prism RedCat 90° 1,25" (63851)

141.04 $

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This 1.25" 90-degree erecting prism is highly useful for daytime observations with the William Optics Apochromatic refractor AP 51/250 RedCat 51 OTA.

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William Optics Dura Bright 1.25" 90° mirror star diagonal (48962)

141.04 $

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This mirror-type star diagonal features dielectric mirror coatings for 99% reflectivity, ensuring heightened contrast and resolution, particularly for critical planetary, lunar, and binary star observations.

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William Optics Erecting Finder 50mm 1.25" (68628)

211.56 $

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Utilizing a finderscope significantly enhances celestial object location compared to using the telescope alone, thanks to its wider field of view. Unlike the telescope's limited visual field, the finderscope presents a broader section of the sky, simplifying alignment.

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William Optics Expandable 1:10 Micro gear for Synta focuser (8929)

126.52 $

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Upgrade your W.O. Synta focusers and W.O. Newtonian focusers with this two-speed 1:10 micro-focuser retrofit.

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William Optics rotator adapter for M63 focuser (69559)

115.94 $

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Compatible with: Z73, Z103, Z126, GT71, new 2018 GT81, and all other brand Focusers with M63 threads.

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William Optics Rotolock M54 2" Silver

116.15 $

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Material: Aluminium

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William Optics Adjustable Flattener Reducer Flat73R for ZenithStar 73

376.98 $

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The flattener serves as a corrective lens to rectify the slight curvature introduced by the primary optics, ensuring uniform field illumination. This curvature often causes stars at the field's edge to appear less sharp. Also known as a field flattener, this accessory eliminates this effect, enabling astrophotographers to capture sharp stars throughout the entire exposure.

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William Optics Flattener Flat73A for ZenithStar 73 (63617)

291.25 $

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The flattener serves as a lens to level the field, addressing the slight curvature caused by primary optics. This curvature often results in less sharp stars at the field's periphery. Also known as a field flattener, it remedies this, ensuring astrophotographers capture sharp stars across the entire frame.

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William Optics Focusing Mask Bahtinov 172-235mm (62748)

158.7 $

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The etched pattern on these masks forms a diffraction structure that shines approximately three times brighter compared to traditional metal masks. As a result, our acrylic glass masks yield a clearer diffraction pattern, facilitating focusing even with fainter stars.

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William Optics Focusing Mask Bahtinov 243-308mm (62746)

140.15 $

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Featuring an imprinted pattern, these masks create a diffraction structure that shines approximately three times brighter compared to traditional metal masks. Consequently, the acrylic glass masks yield a clearer diffraction pattern, facilitating focusing with the assistance of fainter stars.

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William Optics Guidescope AC 50/200 RotoLock Gold OTA (57792)

144.07 $

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The guidescope aligns parallel to the main telescope tube, ideally using guide scope rings for easy adjustment. This setup allows for seamless connection of a camera to the guidescope's camera end, enabling automatic tracking control by the mount for capturing long-exposure night sky images.

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William Optics Guidescope AC 50/200 RotoLock Red OTA (57794)

175.19 $

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The guidescope aligns parallel to the main telescope tube, ideally utilizing guide scope rings for effortless adjustment. This setup allows for seamless connection of a camera to the guidescope's camera end, facilitating automatic tracking control by the mount for capturing long-exposure night sky images.

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William Optics Guidescope Guide Star Apo 61 (69167)

570.73 $

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The William Optics GuideStar 61 offers versatile functionality as either a portable high-quality imaging scope or an ultra-high-quality guidescope.

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William Optics Guidescope UniGuide 32mm Gold (69212)

113.15 $

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This specialized finderscope and guidescope features a unique rail system designed to attach seamlessly to the handles of William Optics apochromats.

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William Optics Guidescope UniGuide 32mm Red (69213)

113.86 $

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This finderscope and guidescope is equipped with a specialized rail designed to seamlessly attach to the handles of William Optics apochromats.

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