Staff have always been prompt in answering any questions I may have and I really cant fault their service. Gran Turismo Series - Triplet Refractors 6. This is the ONLY company I've dealt with in the past 10 or so years that has delivered the kit on the day it was promised. Manish holds a Master's degree in Electrical Engineering from Virginia Tech and an MBA from the Kellogg School of Management at Northwestern University. The top features a Vixen-style handle/saddlebar. Well what can I say that hasn't already been said, the quality of construction in this price range is second to none. observe.It may take some practice to get used to aligning your telescope with celestial objects, but with telescope, and they can greatly impact the magnification, field of view, and image quality. William Optics ZenithStar 73 - f/5.9 Doublet Apo Refractor - Red In late 2019, a second generation was released with a 'Space Gray' color option with black trim. Table 3 includes the suggested settings for each flattener with their compatible scopes. The William Optics 50mm RACI finder does not include an eyepiece, but it can be used with a 1.25" eyepiece with or without a reticle. The store will not work correctly in the case when cookies are disabled. Weighing only about 3 lb, you can easily take it with you anywhere! Adjustable reducer flattener Flat73R for Z73, Super high precision COPPER T mount for Canon EOS full frame Cameras, Super high precision COPPER T mount for Nikon full frame Cameras, All New Adjustable Flat6AIII (T-mount not included), Slide-base 50mm Guiding Rings (with srews), (Best Buy) Red dot finder Kit with Vixen Style Mounting Base. I was after a small portable scope for visual and occasional snaps. Planets: The telescope's high-resolution optics make it perfect for observing the planets of our solar system, including Jupiter, Saturn, Mars, and Venus. Since my main interest is in astrophotography, I also purchased the 73A adjustable field flattener and DSLR-M48 ring adapter. For example, if you want to observe a specific deep-sky object, you can use It provides high-resolution images when used for astrophotography or wildlife photography and is a convenient ultra-portable telescope for visual astronomy (think binocular astronomy targets). 2. My first views through the eyepiece really were very impressive. Only slight grumble is that it didn't come with a finderscope shoe, but this has been ordered now so shouldn't wait too long. I bought this as a portable field scope and as a guide scope for my 8" EdgeHD, along with the 61ii flattener. I did a lot of review reading and opted for WO because of optical properties for Astrophotography, built quality and yes, looks. Optical system: Air-spaced doublets with 1 FPL-53 fluorite element: Aperture: 73 mm: Focal length: 430 mm: Focal ratio: f/5.9: Image circle: telescope's aperture, focal length, and your observing goals. The precision focuser, integrated focus mask, and crisp image performance are what I enjoy about the Z73 most. see. telescopes.-QHY CCD cameras: QHY CCD cameras are also widely used by astrophotographers and offer good Nice quality, well presented and a fair price. appears sharp and clear.If necessary, use a focusing aid such as a Bahtinov mask to achieve precise focus. Not had chance to use it because of the weather. I observed a white roof and expected to see some blue and yellow around the edges. I got the WO wedge as well and so far have managed 90sec subs unguided without trailing. diagonal is securely in place.Point your telescope at the object you want to observe. Apochromatic f/6.9 doublet objective with FPL-53 glass. William Optics Zenith Star 70mm f/6 Doublet ED Refractor # A-Z70A Figure 5 A Fluorostar 132mm refractor telescopes in red trim. The camera was attached to the telescope using the Canon 48mm T-Ring, with the Flat73 field flattener in place. It's a good idea to invest in high-quality eyepieces that provide clear and Bahtinov mask creates a diffraction pattern that helps you adjust the focus until the pattern is This will give you a good range of sharp images of the night sky. ZENITHSTAR 73 III F/5.9 APO DOUBLET | Testar Australia For the best experience on our site, be sure to turn on Javascript in your browser. William Optics RedCat 51 Review | The Ultimate Portable Petzval APO taking long-exposure images of celestial objects, the Earth's rotation can cause the object to move across the The Perfect F-Ratio The William Optics Zenithstar 73 APO has an f-ratio of F/5.9. This is designed to fit into the Saddle/handlebar found on William Optics scopes or in other compatible finder bases. (See my experience using the giant Fluorostar 132). The William Optics Flat 73 1:1 Field Flattener with a 2-inch light pollution filter inside. BEST FOR:- Visual observation of deep sky and lunar/planetary (at longer focal lengths and larger apertures)- Terrestrial observing and photography (with smaller apertures) using an erecting diagonal (sold separately)- Astrophotography (with flattener reducer, sold separately), LIMITATIONS:- Slightly more residual color than triplet objectives, PRODUCT LINKS:William Optics ZenithStar Doublet ED Refractors. PRODUCT LINKS:William Optics UniGuide 50mm Guide ScopesWilliam Optics UniStar 61mm Guide Scopes. William Optics Zenithstar 73-II f/5.9 APO (Free Soft Carrying Bag) Discontinued. ZenithStar Series Doublet 'Apo' Refractors, 5. Zenithstar 61II APO. William Optics refractors are available in apertures from 51mm to 153mm and they come with doublet, triplet, and quadruplet apochromatic/ED objective lenses that are designed to suit most amateur astronomers from casual visual observers to serious astrophotographers. UniGuide Guide ScopesThe William Optics UniGuide Scope series features a 50mm f/4 objective with the William Optics RotoLock to hold the guide camera. I appreciate the included rubber-tipped screws that do not damage the painted finish of the optical tube. This will be a great telescope for imaging large nebula DSOs and Andromeda. accessory for telescopes that is used for astrophotography. The 2.5" 10:1 rack & pinion focuser is smooth, stable and reliable, providing no slippage over long imaging sessions. Their largest guide scope, the GuideStar61 (GS61) series, is based on the ZenithStar 61mm apochromatic refractors but with a simpler focuser and lighter-weight housing to keep the overall weight low. Table 3 shows the properties of each focal reducer and summarizes which reducer works with which William Optics telescope. William Optics Zenith-Star 66mm Doublet SD APO Refractor - OpticsPlanet (W/2 speed microfocuser) (Package includes 2" SCT Dielectric Diagonal). its right ascension and declination coordinates to find it.Repeat these steps for other objects you want to Fine focusing is accomplished by rotating the dewshield and locking it in place as is done on many finderscopes. This finder rail is much narrower than Vixen-style mount rails, so you cannot attach this guidescope directly to larger Vixen mount saddles. Zenithstar 81 APO Brand New 2019 Super ZenithStar 81 F6.9 imaging APO (Innovative Bahtinov Mask Cover (Patented) included !! Choose from blue, gold or red accents. William Optics Zenithstar 61 II APO | First Light Optics This was quite traumatic to watch. Specifications. Copyright 1996-2023 William Optics. variety of eyepieces with different focal lengths can give you more flexibility and control over the image you Neither of these scopes can be used as a finder with a reticle eyepiece, as they do not have sufficient back-focus (in-focus) travel. William Optics ZenithStar 73 Refractor Specifications Refractor Design: Apochromat (APO) Focal Length: 430mm Focal Ratio: f/5.9 Focuser: 2.5" Rack & Pinion Retracted Length: 310mm Diameter of the Front of the Scope: 92mm Weight: 5.5 lbs. The dispersion properties of ED and SD glass elements are important in determining the overall colour correction. Image credit: William Optics. New 2018 Super ZenithStar 126 F7.7 imaging APO(Innovative Bahtinov Mask Cover (Patented) included !!). The image was bright and very sharp; it reminded me of the quality optics I'd used in the army. The primary features of RedCat telescopes are: The RedCat is also quite compact, with a length of 225mm when fully retracted and with a weight of 3.24lbs. Zenithstar 73 III APO. If there is any visible dust or debris, gently brush it off with However, FLO clearly state this in the description so no points deducted. telescope is versatile and can be used to observe a wide range of objects in the night sky. The GT71 and GT81 require the Flat 6AIII adjustable field flattener/0.8x focal reducer. NOTE: Photos show the earlier V2 model, which has a white focuser, the focuser fitted to the VIII model is the same but has a black finish. We are very exciting to announce New 2018SuperZenithStar 126 F7.7 imaging APO!!! All New Adjustable Flat6AIII (T-mount not included), Camera Angle Rotator for 2.5 M63 Focuser, Super high precision COPPER T mount for Canon EOS full frame Cameras, Super high precision COPPER T mount for Nikon full frame Cameras, Slide-base 50mm Guiding Rings (with srews). Consider the purchase of a telescope to be an investment in wide-field astrophotography for the future. To attach your guide camera directly to the guidescope, it must have a 2" nosepiece. William Optics ZenithStar Telescopes | ProAstroz patience and persistence, you will be able to enjoy the beauty of the night sky with your William Optics IMPRESSION OF MECHANICAL CONSTRUCTION AND FINISH Great job, thanks. The store will not work correctly in the case when cookies are disabled. Very happy with my purchase and my guiding has never been better (it is paired up with a Lodestar Pro). Its clear optics allow high magnifications and sharp imaging during astrophotography and nature photography using any SLR camera. These scopes are intended for visual observers and astrophotographers who demand minimal residual color when imaging, especially when brighter objects are in the field of view. As your hardware and skills progress, it becomes increasingly rare. William Optics 73mm f/5.9 ZenithStar FPL53 Doublet APO Refractor w 3. This beautiful scope is everything you always wanted in a refractor, starting from extreme sharpness for clear details, and APO color correction. Fluorostar Refractors 7. The ZS61 requires the Flat 61A or the adjustable Flat 61R field flattener. Their staff are clearly knowledgeable, friendly and helpful. Some scopes, including the William Optics Star and RedCat series, do not require a focal reducer or field flattener for astrophotography. refractor telescope, as any scratches or damage to the lens can significantly impact image quality. WILLIAM OPTICS, Zenithstar 73, ED APO Telescope, 73mm APO ED - Tejraj William Optics organizes its telescope product line into named series of refractors, each with distinctive characteristics. WILLIAM OPTICS, Zenithstar 61, ED APO Telescope, 61mm APO ED - Tejraj depend on your specific imaging needs and budget. William Optics frequently introduces innovations and features into their telescopes, and they occasionally release entirely new product families. For the best experience on our site, be sure to turn on Javascript in your browser. This was my first step up from camera lenses. BEST FOR:- Astrophotography (with flattener reducer, sold separately)- Visual observation of deep sky and lunar/planetary (at longer focal lengths and larger apertures), LIMITATIONS:- Heavier and more expensive relative to doublet refractors, PRODUCT LINKS:William Optics Gran Turismo (GT) Triplet ED Refractors. Its fast focal ratio makes it your ideal travelling set-up for . field of view, resulting in a blurred or elongated image. The store will not work correctly in the case when cookies are disabled. For better or for worse, once you own a William Optics telescope, you'll hardly want anything less. their sensitivity and low noise. observing open and globular star clusters, such as the Pleiades and the Hercules Cluster.Overall, this Add to Cart. V-Style dovetail bar included. Staff have always been prompt in answering any questions I may have and I really cant fault their service. The RedCat is intended for very wide field astronomical imaging: it has a field of nearly 10 degrees across a 43mm image circle that fills a full-frame camera sensor. to the focuser and then insert the eyepiece into the diagonal. With regular For the best experience on our site, be sure to turn on Javascript in your browser. William Optics ZenithStar scopes are currently available in apertures of 61mm and 73mm (at f/5.9) and 81mm. and center it in the field of view.Adjust the focus until the object appears sharp and clear.If This comes at a hefty price but without it chromatic aberration anywhere from dead centre is atrocious and stars near the edge look like smeared out flies on a windscreen. For the best experience on our site, be sure to turn on Javascript in your browser. . Are there new telescope series on the way from WO, particularly in the 100-105mm range? Zenithstar 73II APO - William Optics It can also be used for visual observation using a specially-made William Optics erecting diagonal (sold separately) that threads onto the focuser. Besides observing from his heavily light polluted backyard in Los Angeles, Manish enjoys conducting astronomy outreach programs in local schools. The GT 102mm (f/6.9) GT 153mm (f/7.8) have been discontinued. Mount and tripod: A Image credit: Agena AstroProducts. Specifications of William Optics Zenith-Star 66mm Doublet SD APO Refractor Telescope w/ 2 Speed Focuser + 2" Dielectric Diagonal ( Blue Tube) ZS66-SD-BP2: Aperture: 66mm: Focal . to help you locate and center objects in the sky more easily.5. As low as $599.00. ready for shipping in 24 h + lead time. It provides a sharp image to any DSLR, and pristine clarity for both visual observers and astrophotographers. This makes the Zenithstar 73 an excellent choice for those looking for a primary imaging telescope. Avoid storing the telescope in a place that is exposed to direct These scopes are not intended as a primary telescope for imaging or visual observing, but they make a good companion scope for those who already own longer focal length instruments. With an appropriate field flattener/focal reducer, Gran Turismo scopes also serve as excellent photographic instruments with larger APS-C and full-frame cameras. CN Report: The William Optics ZenithStar 110 - Cloudy Nights Some of the best objects to view with this telescope include: Moon: With its high-quality optics and sharp images, the William Optics refractor telescope is ideal for 907 2895 01, First Light Optics Ltd All rights reserved 2023. preferences and observing goals. DSLR Astrophotography - William Optics Zenithstar 61 Review - AstroBackyard Eyepieces with a larger apparent field of view (AFOV) can provide a more immersive observing experience, as William Optics ZenithStar 61II Doublet Refracting Telescope - Red Using a cropped sensor camera, the stars were pin-sharp across the entire frame; I could not be more pleased! Disassemble the telescope: If you have to William Optics Zenithstar Z73-II f/5.9 APO | Cyclops Optics For William Optics refractor telescopes, which typically have focal ratios between f/5 and f/7, it is Sign up for our newsletter to get exclusive deals, observing tips, and new product announcements. Since the GS61 guide scopes are optically identical to the William Optics Z61 telescope, they have apochromatic optics and provide a full-frame image circle. Others flatteners or flattener/focal reducers are adjustable to work with several William Optics scopes. The guiding scope is usually a small refractor telescope with a short focal length and a wide field of view. monitor the object's movement and send signals to the mount to make small adjustments to keep the object The Orion Nebula and the Pleiades Star Cluster using the William Optics Zenithstar 73 APO. a sturdy mount to reduce vibrations and increase stability, which will result in sharper images.7. Zenithstar 73II APO Zenithstar 73II APO Zenithstar 73II is a greatly versatile and portable refractor telescope for beginners and veterans alike. telescope in a cool place to avoid heat damage. Product Details ZS71 20th Anniversary Edition in Red Color A small-aperture, extremely-portable ED scope at a GREAT price? It provides high-resolution images for astrophotography or wildlife photography and is a convenient ultra-portable telescope for visual astronomy (think binocular astronomy targets). The latest ZS 71 ED Doublet is here to fit all your needs! At this time, orders are crowded, new orders will be shipped in a week. Use a dust cover or a soft cloth to cover the telescope and protect it from dust.2. Table 2 A comparison of the main mechanical features and accessories of William Optics telescopes from the RedCat (RC), ZenithStar (ZS), Gran Turismo (GT), Fluorostar (FLT), and Star (WS) series. Quiet heavy for such a small scope but this reinforces the quality of construction. of the telescope.It is important to be gentle and careful when cleaning the lens of your William Optics I only bought it to pass the time until my SCT order from February arrives. William Optics Ferrari ZenithStar Racing Specifications - ManualsLib objects.Look through the eyepiece and use the telescope's focus knob to adjust the focus until the image
