4 inch refractor telescope. com : Celestron - NexStar 4SE Telescope - Computerized Telescope for Beginners and Advanced Users - Fully-Automated GoTo Mount - SkyAlign Technology - 40,000+ Celestial Objects - 4-Inch Primary Mirror : Catadioptric Telescopes : Electronics Jun 28, 2014 · Considering image quality and convenience, a 4-inch refractor worked out well for me as a grab-and-go telescope. 9 Takahashi FSQ-106EDX4 f/5 Quadruplet Petzval APO Refractor: 11. While not cheap, top-notch telescopes in this range often sell for many times Nov 29, 2011 · Stellarvue’s SV105–3SV is a 4. $333. 9. (6. 2、Aluminum alloy material, strong and durable, long service life. Both are push-to with dsc's. Mar 21, 2020 · The 4. Celestron’s signature orange-tube telescope combines advanced features and excellent optics in one easy-to-use system, the NexStar 4SE. Ill be using it primarily as an imaging scope, but I got to thinking I might want to look through it once in a while. Nagler-Petzval apochromatic refractor optics: 4" (101mm) aperture, 540mm focal length, f/5. 25-inch star Product Details. Celestron - AstroMaster 90EQ Refractor Telescope - Refractor Telescope for Beginners - Fully-Coated Glass Optics - Adjustable-Height Tripod - Bonus Astronomy Software Package. In this video, I conduct 1、1/4INCH SCREW HOLE: 1/4 inch screw on the top of the binocular mount holder attaches to binoculars of the same size, and the standard 1/4 inch threaded hole in the base allows for direct mounting on a tripod. A 4" short focus ED / APO frac is a superb instrument for low power wide field deep sky work (on a portable altaz mount) or for small scale deep sky imaging (on a good equatorial) - but the 6" Newtonian is much better as a first/only Dec 27, 2010 · Skylight Telescopes’ Skylight F15 is a 4-inch f/15 refractor. Jul 22, 2015 · Sky and Telescope reviewed this scope back in 2009, saying: “the Astro-Tech AT106 provides all the benefits of a first-class 4-inch apo but without the premium price. Boasts fully-coated, 90mm primary mirror. List: $349. 4" i. The optics are in perfect condition. 5 reflector ( Teeter STS11 w/zambuto). The Advanced VX 6” refractor telescope offers no obstruction of the aperture and at a focal ratio of f/8, the telescope provides you the highest possible contrast when viewing celestial objects, especially the planets. I started many The Orion StarBlast 4. 4 and 11 inch f4. After several months of Explore Scientific Firstlight 4-Inch Refractor - FL-AR1021000EQ3. It has two tripods, one german equatorial and one alt-az mount. 5eq reflector telescope or the Orion 10012 Skyscanner, this refracting telescope provides manual slow motion with 2 adjustable tripods, eyepieces, a finder scope, and a 90-degree mirror diagonal that helps in setting up the image just in the right clarity where even the best 4-inch refractor telescope reviews Jan 11, 2011 · Location: South east France, Lat 44. Just a bit over 2G's is Televue TV85 or Stellarvue SVX 90T. A lightweight yet moderately powerful telescope designed for beginners to backyard astronomy. 2、STABLE SUPPORT: Binocular telescope mount holder provides a stable base near the center of the binoculars and eliminates image shake, making for more stable viewing. If you want a very good refractor that's especially easy to handle, this Sep 20, 2022 · Celestron Inspire 100AZ telescope makes astrophotography easy. The lens cell is fully collimatable for optimum sharpness. If I remember my book learnin correctly, a refractor with perfect optics will put 84% of the light into the Airy disk, with 7% going into the first diffraction ring, and the remainder going into outer rings that will be to faint to detect on all but the Jun 1, 2015 · 1. Or fastest delivery Thu, Apr 11. 3 achromatic doublet lens using aspheric shaping technology for images that have virtually no spherical aberration. Offers 2 eyepieces for 50x and 100x magnification. $269. But they are somewhat compromised vs your Skymax when solely considering planetary observation, especially the F7 scope, as the 180 SM is built for planetary work. 5" Newtonian reflector. So I had to do some comparisons between the 4 vs 5 inch on ground objects. Refractor optics: 4. The old Yerkes 24 inch (2 foot telescope) reflecting telescope, now in a museum Diagram of the Bruce astrograph. Popular brands to consider for refractor telescopes are the big-shot names: Celestron, Orion, SkyWatcher, Explore Scientific, and Meade. Right: 102FL - 4 Inch f9 Apochromatic Refractor Telescope shown as most recently imported by Orion on optional Vixen GP German Equatorial Mount and Tripod (13,789 bytes). The entire Messier list can be seen in a 4 inch if you have the right site and the right eyes! Stephen James O'Meara's classic The Messier Objects was written and illustrated from a 4 inch Genesis. I don't do AP. The 85 or 90MM would be better on widefield, the 115 and 130 on the galaxy. Televue and Stellarvue are not mass produced like AT, TS, and the like. It is also a fine terrestrial telescope when mounted on an alt-azimuth mount or a Jan 25, 2021 · To get a telescope’s theoretical maximum 50× per inch of aperture, you use an eyepiece whose focal length in mm is half the focal ratio: 2 mm for an f/4 scope and 7. 965 Inch H20mm Eyepiece Telescope Parts Shipping, arrives in 3+ days 2 Pieces 0. Best value for enthusiasts The NexStar 4SE features a 4-inch (102mm) aperture and a focal length of 1325mm. 965'' Telescope Accessory Eyepiece SR4mm . The Meade 8" f/4 LX85 astrograph reflector telescope features the AudioStar controller - a full GoTo system to locate and track objects. Moonraker Nebula Class 4-inch f/12 refractor review - BBC Sky at Night Magazine. 8" dob from a beginner's view - posted in Beginners Forum (No Astrophotography): I took on astronomy as a hobby about 7 months ago. Our Founder’s Vision, Reimagined for the 21st Century. 99 $469. I will be 73 in June, and when I look back to the days Oct 19, 2020 · Almost all 4 inches are grab and go. 4 Fluorite Refractor: 11. Scott99 likes this. 3、It is suitable for the optical axis of telescopes collimation. The apochromatic refractor virtually eliminates chromatic aberration. Our refractor telescopes provide crisp, high-contrast views of bright targets like the Moon, planets, and terrestrial subjects. With a five-inch refractor telescope, you’ll be able to see Jupiter’s cloud bands, the rings around Saturn, the phases of Venus, and craters on the Moon and Mars’ polar ice caps. 5 Takahashi FC-100DC F/7. 3) Move to a telescope that has a 2-inch focuser and a focal length of less than about 600mm or so; and then select an appropriate eyepiece. My solution was to place Velcro on the contact points and use Meade 4 inch refractor rings (themselves very rare) to hold the OTA in place. 1 Pc Telescope Eyepiece Multi-Coated 0. 8 Esprit 100mm ED Triplet APO Refractor: 12. Stellarvue, based in Auburn, California, was founded in 1997 by astronomy devotee Vic Maris. $5,499. Ive been a reader of CNs for quite a few years, but not as a participant, until a few weeks ago. Check Price on Amazon. 2、4MM FOCAL LENGTH: The telescope eyepiece has a focal length of 4mm, with wide field of viewing, superior performance, very comfortable for observation. The telescope has scratches and scrapes mostly from the original Nylon and Aluminum mounting arrangement which caused metal on metal contact with the Equatorial Head. 25” prism star diagonal, 20mm Plossl eyepiece with 60x magnification. 5 Triplet FPL53 Apo - 3" focuser: 11. 7" (120mm) aperture, 1000mm focal length, f/8. This telescope can give exciting "rich field" astronomical views. Mar 4, 2020 · 2. Shop online! Jan 11, 2018 · Page 1 of 2 - Most important eyepieces for a 4" refractor? - posted in Eyepieces: Hey everybody, Im curious what everyone thinks are must have eyepieces for smaller refractors. Celestron. Its quality, easy set-up, and airline portability beckons your use. 98 Add to Cart. Apr 18, 2024 · This 4-inch refractor telescope has a dew cap to protect the objective lens. 2-inch to 1. Jan 29, 2021 · The 4" refractor will be lighter, faster to cool, and less sensitive to poor seeing than the 180 SM. That's pretty much how it appears in most scopes, except the word "dim", which is a subjective comment. Oct 3, 2023 · But, this isn’t the place for debate. May 8, 2021 · REC, I have a 4 inch refractor, too, and I’m still working my way around my first telescope-equipped solar orbit. 9 focal ratio, and large 15mm blocking filter. 25 inch visual back, compared to modern 60mm achro's, it more than holds it's own. Add to Cart. I have a 4 inch refractor ( Televue Genesis SDF f5. 25-inch Adapter. It is also a fine terrestrial telescope when mounted on an alt-azimuth mount or a The 5-inch and 6-inch refractor telescopes are the most popular because their aperture will allow you to see deeper into space than smaller or larger models. Buy in monthly payments with Affirm on orders over $50. Save $30. This will be for visual only, no astro-photography planned. 00. Since then, the company has As low as $2. I have an Explore Scientific ED102 Apo on order. Erik Bakker, SteveG, Midnight Skies and 2 others like this. 3 Asahi-Pentax on the novel Alt-az mount doesn't look to different but where the Sears is weak, it is strong. I have owned several Taks over the years and loved everyone of them. The 4-inch F/10 achromat gives fine views Celestron Omni XLT 120 Refractor Features: High quality optics start with a hand-selected lens so only the finest grade of optical glass is used. This is an extremely portable refractor telescope, meaning you can take it with you on camping trips, hikes, and stargazing parties. Chromatic aberration (spurious color) is present, but well controlled for a scope of this aperture. 15 $499. 00 $ 1,899. Jan 7, 2021 · A UHC filter helps with nebula. Jan 8, 2019 · For an 8 inch Newtonian with 90% reflective mirrors and a 25% COin x , the equivalent refractor in terms of light gathering would be: 8in x ((1-. This Sky-Watcher 102mm (4-Inch) f/5 Achromatic Refractor Telescope; is a two-element, air-spaced, fully multi-coated objective, achromatic refractor. 00 with coupon. Oct 22, 2022 · A 5-inch telescope is a type of telescope with an aperture (the diameter of the objective lens) of 5 inches (127-130 mm). Apr 2, 2024 · Revised And Updated: A 4-inch Refractor Can Be An Excellent Deep-Sky Telescope - posted in Refractors : Thank you to Cloudy Nights, and those who chose to read my former post concerning the merits of a 4-inch refractor. The set consists of two felt-lined split rings with a 1/4"-20 thread holes drilled and tapped into Jan 18, 2015 · Page 1 of 3 - 4" refractor vs. My top choice seems to be a Takahashi FS 152. It is nearly equivalent to a Model 160. Explore our collection of both achromatic and apochromatic telescopes from a variety of industry-leading brands when you shop Our next pick for the best apo triplet refractor is the Orion ED80T CF. 5 Astro Reflector telescope features a precision rack-and-pinion 1. $1,899. The Advanced VX mount is designed to provide superior performance for smaller telescopes while taking advantage of Celestron Weight: 14. A 5-inch telescope is a powerful optical instrument designed for observing celestial objects in the night sky. So you can nip out and get on with observations within short windows of time. While there is no official measurement of telescope sizes, still refractor telescopes can be roughly classified as follows By the time I was in my forties, I'd built several telescopes (mostly for the kids and their friends), ranging in size from 4 to 12-1/2 inches in diameter. 25-inch Eyepiece Adapter. Explore Scientific SKU: FL-AR1021000EQ3. Posted February 20, 2011. Feb 1, 2013 · Celestron Advanced VX 6-Inch Refractor GoTo Telescope . Celestron SkyMaster 20×80 Review: Bigger and Better. This high quality 90mm solar telescope features an 800mm focal length, f/8. Higher-end visual observers who want to get rid of all CA from the image also like apochromatic refractors. An SCT will have a narrower field of view than other telescope designs. In that short time, Ive spent hours observing and reading about the night sky, and the equipment available to todays amateur astronomer. Visit the Celestron Store. Reflectors will be on tabletop mounts and will start at $100. It's sort of a niche product: of all the 4-inch refractors, it's the shortest and easiest to transport. Nov 23, 2017 · I’ve been searching for a travel ‘scope to go with it - an affordable, four-inch aperture refractor with decent glass, compact enough to take on board a plane. 25mm, 1. 5 kilo featherweight build. 4kg) The Celestron – AstroMaster 102AZ Refractor Telescope is perfect for observers who want clear views of the Moon, planets, star clusters, galaxies, and more. APO refractors are much more expensive than achromatic refractors. A plastic d ew shield fitted to the front end of the optical tube prevents condensation on the Sep 13, 2019 · *Astronomy*The best LIVE VIEWS of the Planets Mars, Jupiter and Saturn with a Smartphone (LG G6) mounted on a small 4-inch Newtonian Telescope (Celestron Pow Dec 18, 2013 · 9. Includes mounting rings, CEMAX 25mm, 18mm, and 12mm eyepiece, Sol Ranger solar finder and black and aluminum hard carry case. 8 achromatic doublet lens using aspheric shaping technology for images that have virtually no spherical aberration. StarBright XLT coatings provide maximized light transmission. Best for Beginners. 99. May 6, 2023 · This Telescope's Optical System . 25 INCH INTERFACE: The bottom extinction thread of this eyepiece can rotate a 1. May 23, 2024 · Best budget telescope 4. 13-inch f/7 apochromatic refractor. 5、Collimation eyepiece is more accurate than the normal collimation tool, can help you better enjoy star. 1. While these brands have high-end refractors, they also have a huge inventory of affordable scopes under $2000 for the average Joe. I spotted the Bresser AR 102 SX amid ebullient German sales blurb that made much of its ‘amazing’ little-more-than 2. It offers great performance and a unique weight driven clock drive. Huge aperture (for a refractor) provides great lunar, planetary, and deep-sky views. 25-inch multi-coated eyepiece - 20mm eye relief. 5 inch reflector at 90x. It comes with a 60 mm guide scope, the 30 mm finder, eyepieces. $424. Celestron 8" EdgeHD 800 Schmidt-Cassegrain Telescope OTA # 91030-XLT. Celestron - 50mm Travel Scope - Portable Refractor Telescope - Fully-Coated Glass Optics - Ideal Telescope for Beginners - Bonus Astronomy Software Package. 5 mm for an f/15 scope. Nov 16, 2020 · A 4 inch refractor will and do give nice views of the planets, but for serious observing you want something bigger, and that scope is most likely not going to be a refractor in the sizes that the vast majority of us can afford to buy or. 9. $7495. Nov 22, 2021 · Now unlike the Orion StarBlast ii 4. Refractors typically transmit 90% or more of the light they collect, compared with the 77% to 80% transmission of reflectors and 64% to 75% of catadioptrics. Two other telescopes planned for the observatory in the 1890s were a 12-inch aperture refractor and a 24-inch reflecting telescope. Check Price. Oct 5, 2007 · From a short distance, the "beater" 60mm F/13. 16/Month. 20 $392. He lives in Hawaii and is rather a good observer. The replacement for my beloved GP-C102 would be something in that size range. The equatorial mount has an electric motor so I guess is a late 60´s model. We start strong with the Sky-Watcher. 25 to cover the larger aperture side. 25 inch interface telescope or filter. 9 Call us today, toll-free, at (800) 266 9590 to ask our non-commissioned equipment experts for their free advice. However, at this price point, the reflector offers the larger aperture on a more reliable mount. BENEFITS. $1,599. Jun 11, 2023 · 2) Use the same eyepieces you're currently using, but with a telescope that has a shorter focal length (less than your ST-80's 400mm focal length). It had taken me 12 years to receive 10,000 views, for my (A 4-inch refractor Mar 25, 2022 · Celestron Travel Scope 70 Review: Skip the Accessories. In fact, a 5 inch refractor is about 60% - 100% heavier than a 4 inch one. 8 TS-Optics Photoline 107mm f/6. White light filters, available with either solar film or glass, are a special type of neutral density filter ideal for newer Sun observers. Celestron Advanced VX 6" Refractor Telescope CE-22020. . The NexStar 4SE is a 4-inch (102mm) Maksutov-Cassegrain telescope with a focal ratio of f/13, which makes it Sep 29, 2021 · The minimum angle for separating two point sources is given by the formula =1. Feb 12, 2024 · A 4-inch refractor, for example, is a great scope for planets, the Moon, and double stars. $429. Celestron FirstScope Review: The Little Scope That Can. This telescope is highly valued by collectors and will draw admiration at any star party. Aug 7, 2015 · M57 looks like a tiny dim gray smoke ring in my 4. 1 lbs. 0 inches. 50° FOV. 95K views 8 months ago. But I can imagine times (especially at outreach events) where I might prefer a GoTo mount. …. Celestron StarSense Explorer DX 102AZ App-Enabled Refractor Telescope #22460. In the store, a quick comparison with the 80mm Apogee f/7 and an ETX showed significantly more detail in the Widestar on distant terrestrial objects Nov 9, 2022 · Unitron 4 inch - posted in Classic Telescopes: A friend just inherited a 4 inch Unitron refractor. 4、Easy to use and convenient to carry and store. Winner: Reflector. Coronado SolarMax III 90 Solar Scope with BF15. A 12-inch refractor was moved to Yerkes from Kenwood Observatory in the 1890s. 25" focuser built to accept any 1. Sep 9, 2007 · Refractor enthusiasts (and I’m one of them) are fortunate to live in an era where choice abounds. My friends who do, say it is best to learn the craft with a small short focal length refractor. The Tele Vue-NP101 (Nagler/Petzval) represents Tele Vue's closest realization yet of the "ideal" multi-purpose photo/visual telescope. Jun 28, 2014 · The Tele Vue Genesis is a 4-inch apochromatic refractor that goes for around $2700, but only comes with an altazimuth mounting, albeit a very smooth and stable mounting. 25 2) x . ★★★★★14. It’s the perfect choice for your first serious telescope, offering striking views at an economical price. This says an 8 inch Newtonian has the light gathering power of a 7 inch scope with perfect transmission. TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope OS-6RC. The dob has a paracorr type II in the moonlite 2 spd focuser. So 4 inch is ideal considering that you have a C9. This is a heavy-duty unit, but it’s also one of the best refractor telescopes for astronomy out there. The telescope’s fast f/6 focal ratio and 80mm aperture refractor excels in both visual and astrophotography applications. TPO 6" f/4 Newtonian Reflecting OTA Telescope OS-6IN. 95. 08 (6 used & new offers) Apr 18, 2024 · Celestron Inspire 100AZ refractor telescope: there's the option to upgrade to a dual-axis auto-tracking kit which can be installed on this telescope. Refractor optics: 4" (102mm) aperture, 1000mm focal length, f/9. More Buying Choices. among amateur astronomers is known as “aperture fever. 5mm Lens 35 Degree Clusters Moon Planets Observation Tool Mar 8, 2024 · Back to Article List Best telescopes for beginners at High Point Scientific Popular Science by Celestron StarSense Explorer DX 100AZ Smartphone App-Enabled Refractor Telescope (12) $349. Unfortunately, no commercially available Oct 3, 2023 · If you’re looking for the cheapest telescope possible, it’s likely going to be a refractor for under $100. $36. The mechanics and optics on this scope are superlative. FREE delivery Mon, Apr 15. Oct 31, 2019 · This Telescope's Optical System . Vixen ED100SF: My first requirement was that the replacement should be an apochromat, so as to reduce the chromatic aberration to a minimal level and Mar 21, 2005 · Apogee 4" achromat refractor. The Seller dated it 1963 based on a stamp on the motor drive. In Stock. 1,099. This is due to the long focal length. 7 Vixen A105M Achromatic Refractor Telescope: 11. Refractor telescopes are what most people imagine when they think about telescopes. It is considered a medium-sized telescope, ideal for amateur astronomers and kids. 3. In those days, a 12 1/2 inch telescope was considered a monster and being recognized for having built one that big was quite an honor. 3、HANDS 1、Compact, light and easy to carry. 4 apochromatic four-element air-spaced optical system. AstroMaster 90 EQ Refractor Telescope. Mar 21 2005 12:42 PM | Doug Hoy in 100mm - 110mm Refractors. There is no magic involved, just physics. Most 5 inches are not. Page 1 of 2 - Best goto mount, visual, 4" Refractor - posted in Mounts: I have recently bought a 4 Stellarvue and I am using it with an Alt Az mount, equipped with a push-to DSC. 001% of the Sun’s light. (The reflector and catadioptric percentages only Should you buy a refractor or reflector telescope? We weigh up the pros and cons of these two titans of telescope design. ” I have found a number of positive reviews about this modestly sized refractor. They usually appear long and narrow. Feb 6, 2019 · Approx four inch refractor: Vixen AX103S Refractor Telescope: 11. The skies haven't been clear where I live lately so I've only been able to use it to see the moon and Jupiter (I was also able to see the Galilean moons). May 16, 2023 · As for refractors, bang for the buck probably goes to AT115EDT or AT130EDT. 3 mm. Sky-Watcher 120mm Refractor Telescope – Best Overall. 6. 00. Sep 27, 2015 · Here's a few thoughts on 4" vs 5" vs 6": - The biggest differences between the various apertures are ergonomic, the mount required and just the effort required to setup and use the scope. $29999. Enjoy crisp, high-contrast views of the night sky with a refracting telescope from High Point Scientific. Learn more. 9) 1/2 = 6. So a 200mm telescope (ie a good 8"SCT) will resolve 1/2 the angle that a 100mm telescope (ie a top of the line 4" Apo) can do. Dec 26, 2016 · Purchase good equipment and get something around 12 inches. This powder-coated matte-finish satin black ring set is designed to hold 4" diameter refractor optical tubes such as the TeleVue TV-102, NP101, and NP101is. It excels at low power for wide field views. Check Price on Optics Planet. this 4-inch refractor is at its best with the moon and Best Over $1000. Price: $538 CAD. While I wait, I have comments and questions about this Edmund 4 f/15 refractor. In the ever popular 4-inch aperture, everything from inexpensive traditional Fraunhofer achromats to expensive three and four-element APO’s make the selection of a telescope both exciting and agonizing. even house in a purpose built observatory. Jan 3, 2024 · The 5 Best Refractor Telescopes: 1. adjustable spacing mounting ring set for the TeleVue NP101is and TV-102is . I primarily use 13mm and 8mm ethos. The sizes of the refractor telescope are limited by its aperture. Refractors also have the highest light transmission - the percentage of the light gathered by the scope that actually reaches your eye. The APO refractor is heavily favored for astrophotography. While 3 and 4-inch refractors are fairly common but anything beyond that gets crazy expensive especially if it is an Apochromat refractor (triplet). These filters show the entire visible wavelength spectrum but transmit only 0. 25"-sized Orion eyepiece or accessory. 2-inch focuser. ED (Extra-low Dispersion) glass elements in both the front and rear doublets of the system provide images that are free from spurious color and Apr 10, 2015 · Page 1 of 6 - Edmund 4" f/15 Refractor - posted in Classic Telescopes: My latest purchase and final addition to my collection is on its way. Even with the secondary mirror obstructing SOME of the incoming light, its light-gathering capability should still be more than the (unobstructed) 80mm f/5 Refractor telescope, and the (obstructed) 90mm f/11 Maksutov-Cassegrain Telelescope (MCT). 25in filter and can be used with a standard 1. 2 4. Ideal for both visual and astro-imaging of those faint objects in the night sky. My light pollution is suburban/urban transition-type (I can only see 3 stars in the Little Dipper, can’t see the Milky Way, the sky down by the horizon is washed out — like that). Page 1 of 2 - Recommendations for 6 inch visual apo refractor - posted in Refractors : I am considering several 6 inch apochromatic refractors. 6. 9 x . 8K. A 4" apochromatic refractor is a very nice telescope for astrophotography. ★★★★★7. Im open to ED, fluorite, doublets or triplets. My intellectual curiosity drove me to first buy an 8 dobsonian. Next. I just got a 4. In the Newtonian world, one can mitigate the increased aperture This is a vintage Unitron 4 inch f/15 refractor on an equatorial mount. Looks like mine is Amazon. The mount is solid and easy to use, the drawtube is full sized and takes a 1. The difference between a 4 inch and a 5 inch is substantial, a 6 inch takes it even further. In the 1970s, Celestron’s Schmidt Jul 7, 2010 · A typical 6" reflector tube is also lighter than a typical 4" refractor, giving the mount an easier job. With several on the market, it can be hard to pick one. Popular Science by Celestron The first high performance 4" Apochromatic refractor that amateur astronomers aspired to obtain. Edited by vtornado, 07 January 2021 - 07:46 PM. 2. I highly recommend it. ” And, yes, I’m infected. 5" f/11 Newtonian Reflector telescope has a primary mirror diameter of 114. FEATURES: f/8 aperture, 1200 mm focal length, 2” rack-and-pinion focuser, 9x50 finderscope, 1. - I found one that sold on A-Mart that has the same GEM, tripod, white OTA, and black finder. d. Feb 3, 2021 · The Sky-Watcher Evostar 100ED Refractor Telescope (MSRP $950), sits in the middle of its Evostar refractor line, which includes the smaller 80ED and the larger 120ED. Its snap-to-focus sharpness across even the widest true fields, and rich planetary contrast will take your breath away. Aug 7, 2017 · The Infinity 102 has a 4-inch (102mm) aperture objective lens with a focal length of 600mm and a focal ratio of f/5. On Sale. My main interest for observing would be deep sky Dec 11, 2008 · Page 1 of 2 - 4 inch vs 5 inch comparison - posted in Refractors : Hi there. It’s a versatile triplet apochromatic refractor telescope featuring ED (extra-low dispersion) glass for exceptional resolution devoid of aberrations. 2-Inch to 1. 97 inches = 7. 19N. To get 4× per inch, the eyepiece’s focal length would be 25 mm for an f/4 scope and 95 mm for an f/15 scope. It's visible as a dim grey smoke ring to my 4" refractor here in Los Angeles, where the skies are almost as bright as daylight. Free Contiguous US Shipping. The scope incorporates a 2″ Baader Steeltrack dual-rate focuser with a 1¼” adapter and includes a 20×40 finder scope. A friend of mine with a similar telescope says he can see Saturn with its rings and the phases of Venus with his telescope. 4. Well, I've pointed the Widestar at everything I can think of, and overall I'm fairly satisfied with it. Red dot finder. Ever since I got my new 5 inch scope (awesome optics but with shabby stopgap focuser) last weekend, the skys been much smoggy and cloudy as expected here, with no exception. The smooth focus control makes it easy to dial-in fine details when observing objects in the night sky, whether you're looking at a rocky lunar crater or a wispy nebula. Oct 24, 2019 · This Telescope's Optical and Mechanical Systems . For an entry-level telescope, we were pleasantly surprised by its optical performance. 2 out of 5 stars 14 ratings | Search this page . This 4 inch/100mm refractor telescope has a clever lens cap that doubles as a smartphone clamp with which it's possible to photograph and even video the Moon, planets and deep-sky objects in space using just a smartphone. 22/D, where is the wavelength and D the diameter. Many of these filters will show a white-looking Sun, however Apr 9, 2013 · Page 1 of 2 - Easy DSO Pickings for a 4 inch refractor - posted in Beginners Forum (No Astrophotography): Hey allIn a light polluted backyard, other than open star clusters or double stars, what are some nice obvious or doable DSO objects for a 4 inch refractor this time of year (or at any time), from 34 degree latitude? Aside from M42 and M13 and a number of wonderful open clusters and The 6 inch telescope allows them to keep looking like stars at considerably higher powers. zg cw tt cf tl ac iu jw tm ns