refractor
Found in the Classifieds
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$350.00
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$350.00 |
8/24/2024 1:39:08 PM Views: 61 |
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FOR SALE
Orion SkyView Pro 120mm EQ
$250.00
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$250.00 |
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$115.00
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$115.00 |
6/14/2024 4:22:07 AM Views: 103 |
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$29.00
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$29.00 |
5/28/2024 1:23:56 PM Views: 130 |
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SALE OR TRADE
RedCat 51 with DSD EAF Kit
$950.00
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$950.00 |
5/8/2024 5:34:09 PM Views: 767 |
refractor news search results
Developer news items we found relating to refractor
35 results
Apertura 75Q 0.75x reducer used on Iris nebula
Tuesday, August 27, 2024 by Richard Harris
The Apertura 75Q 0.75x Reducer is designed specifically for use with the Apertura 75Q refractor telescope. This optical accessory offers astrophotographers a way to enhance their imaging capabilities by reducing the focal ratio of their telescopes, resulting in a broader field of view and increased image detail. The primary function of this reducer is to take the native...
Apertura CarbonStar 150 Imaging Newtonian
Friday, August 23, 2024 by Freeman Lightner
Apertura has introduced a notable imaging Newtonian telescope to the astrophotography community: the CarbonStar 150. This telescope is designed to cater specifically to those who prioritize capturing detailed and high-quality astronomical images. With a set of modernized features and a focus on delivering strong optical performance, the CarbonStar 150 stands out as a vi...
Mastering astrophotography with your Dobsonian telescope
Tuesday, August 20, 2024 by Steven Miller
Many believe that deep-sky astrophotography with a Goto Dobsonian is either impossible or too difficult to achieve good results. But this belief is being steadily disproven by a dedicated group of astrophotographers who are pushing the boundaries of what a Dob can do. If you learn to capture deep-sky targets with your Dobsonian, you’re not just taking great photos...
ToupTek Astro AAF Astro Automatic Focuser
Monday, August 19, 2024 by Richard Harris
ToupTek Astro, recently announced the release of its latest product, the Automatic Astrophotography Focuser (AAF). This device aims to enhance the astrophotography experience by automating the focusing process, which is critical for capturing sharp, clear images of celestial objects. The AAF is designed to cater to both amateur and professional astrophotographers, offer...
2024 Astrophotography Prize entries open
Tuesday, August 13, 2024 by Richard Harris
The Astrophotography Prize is an international photography competition established in 2023 to celebrate the achievements of astrophotographers worldwide. Organized by a dedicated group of astrophotographers, the competition is designed to support the global community of astrophotographers by helping them refine their skills and derive maximum enjoyment from their hobby....
APM 106mm F6.6 APO refractor with FPL-53 glass released
Monday, August 12, 2024 by Freeman Lightner
APM Telescopes has introduced a new addition to its range of high-quality refractors with the APM - Telescope APO FPL 53 Refractor 106mm F/6.6, featuring a 2.5" ZTA focuser. This model is designed to replace the well-regarded LZOS 105 F/6.2 Apo, offering an upgraded optical system and enhanced performance for both visual and photographic applications. About the&...
Dobson Lasermax PRO 20 inch F4 GoTo from DocTelescope
Tuesday, August 6, 2024 by Richard Harris
DocTelescope, has recently unveiled its latest offering, the LaserMAX PRO Series telescope. Now available for delivery, this cutting-edge telescope is designed to meet the needs of both amateur and professional astronomers, offering exceptional performance and a range of advanced features. Dobson Lasermax PRO 20-inch F4 GoTo from DocTelescope details The LaserMAX ...
Airy Disk APO 204mm Refractor
Monday, August 5, 2024 by Russ Scritchfield
The Airy Disk APO 204mm f/7 Triplet ED FK61 Apochromatic Refractor is a telescope designed for detailed astronomical observations and imaging. It is available for $13,410.00 and offers a range of features aimed at providing clear and accurate views of celestial objects. Airy Disk APO 204mm f/7 Triplet ED FK61 Apochromatic Refractor APO This telescope features a 20...
ScopeTrader August 2024 astronomy magazine is here
Friday, August 2, 2024 by Richard Harris
Welcome to the August issue of ScopeTrader! We are thrilled to bring you a collection of the latest news, updates, and reviews from the world of astronomy. This month, we have an exciting array of topics that will captivate every astronomy enthusiast. From groundbreaking articles and cutting-edge equipment releases to software updates and fascinating astrophotography...
APM MS-6-5x32CF ED binoculars
Friday, August 2, 2024 by Russ Scritchfield
The APM MS-6.5x32CF ED binoculars present a design incorporating BAK4 Poro prisms, known for their balanced price-to-performance ratio. These binoculars are equipped with a 32mm clear aperture and offer a 6.5x magnification, providing a field of view of 9.3°. The optical system includes full FMC multi-coating, designed to enhance visual clarity and performance. The ...
Tele Vue looks back at 2023
Wednesday, July 31, 2024 by Richard Harris
Tele Vue recently released a blog post titled "Looking Back at the 'Best of 2023,'" which reviews notable moments and products from the past year. The post highlights user experiences, particularly focusing on the Tele Vue-NP127is and NP101is telescopes, along with the NPR-2073 reducer. Tele Vue looks back at 2023 blogs It also discusses the impa...
Denver Astronomical Society 75th anniversary milestones
Saturday, July 20, 2024 by Freeman Lightner
The Denver Astronomical Society (DAS) celebrates 75 years of fostering a love for astronomy in the community. Since its founding in 1949, DAS has grown significantly, hosting popular public events and contributing to astronomical advancements. Highlights from its history include the establishment of the Van Nattan-Hansen-Anderson Scholarship Fund, the renaming of the DA...
Kson Olympus AS102 ED APO refractor released from Astro Dog
Thursday, July 11, 2024 by Freeman Lightner
Astro Dog has introduced the Kson "Olympus" AS102, a classic air-spaced crown and flint doublet achromat refractor, featuring a 102mm aperture and an impressive f/12 focal length (extendable to f/15 with an aperture cap). Kson Olympus AS102 ED APO (102mm/1200mm f/12) refractor (FPL51/Lanthanum Doublet) lands from Astro Dog This refractor is met...
Astrophotography filters: How narrow is too narrow
Saturday, June 29, 2024 by Jim Thompson
For many years now I have been promoting the idea that for emission nebulae, whether you have light pollution (LP) or not, the narrower your filter’s pass bands are, the better. Time and again my test results have demonstrated this relationship to be true; that object contrast and signal-to-noise-ratio (SNR) increase as the pass band width decreases. Recently howe...
Starfront observatory now accepting and installing telescopes
Tuesday, June 25, 2024 by Richard Harris
Bray Falls provided an in-depth tour of the telescopes already set up at the remote observatory in Central Texas. This project aims to make astrophotography accessible and affordable by allowing people to use their telescopes remotely from dark skies, wherever they live. The observatory features buildings where the roofs open every night, enabling users to capture image...
How amateur telescope makers defended America
Monday, June 24, 2024 by Richard Harris
John Mellish, a young farmer from Wisconsin with only a grade-school education, had a passion for observing the stars. At the dawn of the 20th Century, however, a three-inch refractor from Alvan Clark & Sons was priced at $175, which was unaffordable for Mellish. Despite this, his skills and ingenuity led him to build a six-inch Newtonian telescope for just $15, tha...
Long focal length APO telescope from Altair released
Thursday, June 13, 2024 by Richard Harris
The Altair 101 ED APO has a new long focal length ED doublet objective design with complete freedom from color aberrations. This is a telescope with premium optics for serious visual astronomy at a good price. it is very well suited for visual observation where sharpness and contrast are important. A long focal length refractor is easy to foc...
Side-by-side dovetail plates and saddles from Rouz Astro
Wednesday, June 12, 2024 by Richard Harris
Rouz Astro has launched its new side-by-side dovetail plates and saddles, constructed with FDM 3D print engineering-grade carbon fiber composite material and CAD designed for maximum strength-to-weight ratio. It saves a lot of weight (typically 1/3 – 1/2 that of metal), which improves mount capacity and tracking performance. Why u...
Remote telescope hosting from Starfront Observatory
Tuesday, June 11, 2024 by Richard Harris
The Starfront Observatory, located in Texas, offers remote telescope hosting services with three tiers of pier reservations for different telescope sizes. The observatory provides optimal conditions for astronomical observations with advanced infrastructure and dark skies. Features of remote telescope hosting: Telescopes: Accommodates up to a 17" reflector...
Low cost telescope SVBONY SV48P review
Tuesday, May 28, 2024 by Russ Scritchfield
The SVBONY SV48P 90mm F5.5 Refractor Telescope is currently priced at $229.99, down from its list price of $339.99, this telescope is designed to meet the needs of both novice and experienced astronomers. The SV48P is particularly well-suited for deep sky astrophotography and visual astronomy, boasting outstanding optics and high-quality mechanical components. Low co...
Southern Maine Astronomers 2024 event schedule
Tuesday, May 28, 2024 by Russ Scritchfield
For those living in or visiting Maine, Southern Maine Astronomers (SMA) have unveiled their highly anticipated 2024 Star Party schedule. These events welcome everyone, from beginners to seasoned astronomers. The SMA website also features schedules and information about astronomy events across Maine, including those held in recognized Dark Sky Sanctuaries, offering excep...
Solar telescope eyepiece Daystar Quark H-alpha reviewed
Saturday, May 25, 2024 by Richard Harris
Imagine you're at the hottest concert of the year, but instead of front-row seats, you've got a telescope pointed at the Sun. Now, you wouldn't stare straight at those blinding stage lights without protection, right? That’s where a solar eyepiece comes in – it’s like the coolest pair of VIP shades for your telescope. What’s a Solar...
New APO refractor from Vixen: SD103SII released
Friday, May 24, 2024 by Freeman Lightner
Vixen has introduced the SD103SII Optical Tube Assembly, an upgraded apochromatic refractor designed for both visual observation and astrophotography. Priced at $2141.99, this new model promises superior performance and stunning star images. Introducing the new Vixen SD103SII APO refractor The SD103SII, a worthy successor to the SD103S, is part of Vixen&...
APM LZOS telescope APO refractor available for pre-order
Thursday, May 23, 2024 by Freeman Lightner
The APM - LZOS 3-lenser SuperED, presented in a new special package, features a 130 mm aperture combined with a 1200 mm focal length. This model is distinguished by its 3.7" APM focuser, which provides 360° rotation, ensuring a versatile and user-friendly experience. The 130 mm APM - LZOS 3-lenser SuperED in the new inexpensive special package with 3.7"...
Sky-Watcher Quattro 300P telescope captures the M51 Whirlpool galaxy
Friday, May 17, 2024 by Richard Harris
Imaging Newtonians are absolute rock stars when it comes to capturing galaxies, particularly stunning specimens like M51, the Whirlpool Galaxy. Let me break down why these telescopes are such a hit in the galaxy-capturing world and sprinkle in some humor to keep things entertaining. Plus, I'll share why I still cherish using my large refractors and my trusty 12"...
Removing star spikes with Cuiv the Lazy Geek
Thursday, May 16, 2024 by Richard Harris
Star spikes, also known as diffraction spikes, are lines radiating from bright stars in images taken with Newtonian telescopes. They occur because of diffraction of light around the secondary mirror's support vanes, also known as the spider vanes. Refracting telescopes, which lack any central obstruction, do not suffer from star spikes and generally offer higher ...
Moon exploration bundles from SVBONY
Wednesday, May 8, 2024 by Russ Scritchfield
Have you ever looked up at the night sky and been captivated by the beauty of the Moon? As our closest celestial neighbor, the Moon presents a fascinating, accessible target for amateur astronomers and seasoned stargazers alike. Svbony recently announced the details for three new observation bundle sets, each specifically designed to enhance your lunar exploration....
Deep space astrophoto targets for May of 2024
Friday, May 3, 2024 by Richard Harris
As spring blossoms into its full glory in May 2024, so does the night sky light up with stellar photographic opportunities. From the spiraling elegance of the Whirlpool Galaxy to the dense sparkle of the Hercules Globular Clusters, the cosmos offers a visual feast for astrophotographers. This season, as the earth renews, the heavens too unveil their most captivating cel...
SV231 Fringe Killer Color Correction Filter from Svbony
Thursday, April 25, 2024 by Russ Scritchfield
The SV231 1.25/2 inch Color Correction Filter enhances astronomical viewing by selectively blocking defocused light from the blue and infrared (IR) parts of the spectrum, commonly problematic in small achromat telescopes. This filter significantly reduces stray light, especially in the blue spectral range, without altering the natural color of the celestial objects, all...
Eyepiece survey results from Tele Vue
Thursday, April 25, 2024 by Richard Harris
The recent Tele Vue eyepiece survey drew over 700 responses, demonstrating strong user engagement and opinions across various features. Users valued adjustable height eyeguards for long eye-relief eyepieces, with many citing the importance of minimizing stray light for clearer, contrast-rich views. Rubber grip rings on eyepieces were also highly regarded, especially use...
Sharpstar 15028HNT Hyperbolic Newtonian Reflector
Thursday, April 25, 2024 by Richard Harris
The SharpStar 15028HNT, also known as the 150 mm f/2.8 Hyperbolic Newtonian Telescope, boasts an impressive f/2.8 focal ratio that promises super wide field images. Its hyperbolic primary mirror, crafted from a glass similar to Pyrex, significantly minimizes spherical aberration, a common challenge in many telescopes. Additionally, the telescope includes a built-in thre...
Apertura 50 mm Right Angle Finder Scope
Thursday, April 25, 2024 by Richard Harris
The Apertura 50 mm Right Angle Finder Scope is perfect for anyone using a manual telescope mount, as it greatly simplifies the process of aligning and centering celestial objects in your eyepiece, enhancing both the ease and quality of your viewing sessions. Apertura 50 mm Right Angle Finder Scope with Illuminated Reticle Eyepiece The Apertura Right Angl...
Top 5 Astronomy Books for 2024
Thursday, April 25, 2024 by Freeman Lightner
Whether you're a seasoned astronomer or just beginning to peer through a telescope, the year 2024 offers a wealth of knowledge through a range of compelling books. These selected titles will guide you through the mysteries of astrophysics, the nuances of relativity, and the practical aspects of stargazing. They offer a fascinating glimpse into both the fundamental t...
Askar 71F Flat Field launches from SharpStar Optics
Thursday, April 25, 2024 by Freeman Lightner
The Askar 71F Flat-Field is an optical tube assembly (OTA) characterized by a 71mm aperture, 490mm focal length, and an inherent focal ratio of F6.9. This model features a quadruplet air-spaced APO lens arrangement, incorporating a single ED glass element to significantly minimize chromatic aberration. It is optimized for 44mm full-frame imaging, delivering excellent...
Tele Vue celebrates product anniversaries in 2024
Sunday, April 21, 2024 by Richard Harris
Tele Vue recently announced its celebration of product anniversaries in 2024, including significant milestones for their innovative optical designs. From the Big Barlow to the comprehensive Ethos line, the company continues to influence the field of astronomy with products that have stood the test of time. Each anniversary - marked as Emerald, Pearl, Silver, and Ruby hi...
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