antares vs celestron focal reducer

Most manufacturers provide this specification. 2. I've only used it a few times but it looks good to me. Check out our 2022 telescope buying guide here! Reducer Lens .7x - EdgeHD 800 This focal reducer from Celestron reduces the effective focal length by 0.63X Enjoy the wider field of view & faster exposure times at f/6.3 with f/10 telescopes f/11 telescopes, such as the C14 will perform at f/7 The Celestron f/6.3 Reducer has four fully-multicoated elements Reduce your exposure times by a factor of 3! Each focal reducer has a fixed specification called the working distance or required back focus. For example, with a 0.8x focal reducer, a telescope with a focal length of 800mm will operate at 800 x 0.8 = 640mm when the reducer is placed at the working distance specified by the manufacturer. First, let's have a look at some key optical parameters are needed to understand focal reducers. Celestron Nexstar+ 127 SLT, several budget plossl eyepieces, Celestron 8-24mm zoom EP and a 12.5mm illuminated double reticle EP, Svbony SV205 camera w/.5 focal reducer, Celestron SkyMaster 20x80 binos on a 40 yr old QuickSet PanHead tripod, Stellarium, Sharpcap and ManyCam on my laptop, SkyView and Nightshift on my phone and a dandy little $9 . Using this same example of an 8" SCT and a 0.63x reducer, a visual observer can also enjoy brighter images and a wider field of view. No idea what the issue is. Meade and Celestron both sell such SCT-T adapters with the correct optical length. More about this below. Here, there was a subtle difference . For me, I was looking for, and planning to keep, the one that yielded the greatest reduction. To further factor out my natural astigmatism (I normally wear glasses while observing), I did the tests with my regular progressive lenses, single vision glasses I use when observing, and naked eye. If the reducer is placed closer to the eyepiece or camera than the distance D, the reduction factor decreases. Easy solution found a very tiny dab of super lube on the threads and all was well and quiet.. Ive owned Celestron, Meade, and Antares models over the years at least a couple of each. Free shipping $189.95 For Ritchey-Chretien telescopes such as those manufactured by GSO, there are also dedicated focal reducers with a reduction factor of 0.7x to 0.8x. There will be no shipments on 3/1/2023, 3/2/2023, or 3/3/2023 (March 1st - March 3rd, 2023). Some refractors such the TeleVue Nagler-Petzval (NP), the Takahashi "FSQ", and the William Optics Redcat/WhiteCat 51 have inherently flat fields because of internal optical elements. Read our 101 article or get in touch. Start here to find the perfect telescope for you! Focal reducers for refractors are easy to use. On the camera side, the focal reducer has male M42x0.75 or M48x0.75 threads that attach directly to the T-ring (with an M42-M48 adapter if necessary). As a consequence, the standard f/6.3 and f/3.3 focal reducers for SCT scopes do not work. 3. Equation 6 & 7 item two & three does not make sense, both say increase its reduction (one should say reduce its reduction?). This Antares 1.25" 0.5x focal reducer lens (tele-compressor) is used under the Orion brand name to thread into the nosepiece of Orion StarShoot Solar System cameras and StarShoot Deep Space Color Imaging Camera. As one increases, the other decreases. I am new to these optic topics, and I want to ask you what happens with Masutov like SW or Celestron 4 or 7 inches. Rather than a direct side-by-side, I swapped the reducers so that I was using them on the exact same, well-collimated instrument. No rainchecks will be issued for items out of stock at OPTcorp.com to match a competitor's price. F6.3 Focal reducer for F/10 or higher telescopes, 43mm aperture, 4-Element, Fully Multicoated. As another example,GSO makes focal reducers for their line of Ritchey-Chretien imaging telescopes. That's partly because focal reducers correct for field curvature, which itself depends on the focal ratio and other optical design factors of the telescope. This is one of our best-selling items, and customers have reported that this product is at least as good as, and probably better than, other leading f/6.3 focal reducers sold on the market for a lot more. However, doesn't fit in the telescope and even if it did wouldn't work. Antares or Celestron? These reducers have a back focus (or design working distance) of 80mm. Focal reducers for many SCTs and their flat-field equivalents usually have a back-focus distance of 105mm. I have had the Japan unit on the back of my C5 since 1994 or thereabouts. The distance d2, which measures the position of the new focal plane of the objective from the back of the focal reducer is given by Equation 5: In these equations, d1, d2, and MR are all variables that depend on each other through Equations 2 and 4. ), ASI Air Plus - Connected items are 'greyed out', Cost of ordering used equipment U.S. - Can can more than double figure, Tuthill Isostatic Mount and Star Trap Power Module. Enter it during checkout! Reducer Lens .7x - EdgeHD 1400 Learn More. The camera side of the focal reducer is threaded for a T-adapter with wide M48 threads, or in some cases, with smaller M42 threads. I've heard and read all kinds of things about the Antares being only a reducer and not a corrector, etc. I think there may be some confusion here, because Antares makes a variety of reducers for eyepieces and scopes in addition to this SCT R/C but this definitely is a reducer/corrector. From the SkyProdigy, a telescope so smart it can align itself, to our high-performance EdgeHD optical system, weve revolutionized the hobby of astronomy for beginners and advanced amateurs alike. WiFi technology encircles the globe in a web of connectivity, knowledge, and information. Like you, I am primarily visually observing but I have everything together now that so I am going to start experimenting with photography so we'll see how it does there. The Best Dedicated Astronomy Cameras for Beginners, Astronomik OIII 12nm CCD Filter - T-Threads, Pegasus Astro Dual Motor Focus Controller, 10 Micron 12kg (26.45lbs) Stainless Steel Counterweight- GM 2000, I would like more information regarding stock availability dates. It can also be used with any other small chip CCD camera having a 1.25" nosepiece, such as the Celestron NexImage, Meade DSI . The working distance or required back focus, explained above, is usually specified and is far more important in practice. I've never found my 0.63 reducer causing CA when used with my SCT. By Oceanside Photo & Telescope wants our customers to shop with confidence knowing that you will always get the best deal available. OPT Product Number: AE-SCTFR specifications Warranty 2 Year Warranty Works as advertised! If used with other f/ratios, the field flattening characteristic may be unpredictable. I am a purely visual observer, so will evaluate for visual use only. 800-483-6287 Not one detectable iota of discernable difference. If it's positioned further from the eyepiece or camera and closer to the telescope objective, the reduction factor increases. Specially-designed focal reducers are available for use with these telescopes. I read another thread in a different forum about F6.3 reducer correctors and one amateur posted an image about glue coming out of an astromania f6.3 reducer which he planned to return. CPWI has an extensive object database, employs PointXP mount modeling, and more. This also resulted in the clear aperture of the Antares being about 39-39.5mm, versus the Celestrons 41mm. In some cases, focal reducers also act as field flatteners by correcting for field curvature and coma of the objective lens. Wonder how they would stack up with a Japanese 6.3. 2023 OPT Telescopes. This is the distance at which the reducer must be placed in front of the eyepiece or camera focal plane in order to operate at the design reduction factor. Since 2008, Brian has taught astronomy to tens of thousands of stargazers through his websites OneMinuteAstronomer.com and CosmicPursuits.com. The stars at the edge could be worse or better. I have both the Antares and the Celestron reducers. Stars in the corner of the image frame are indistinguishable between the Antares and the Celestron. Most refractor manufacturers such as William Optics, Tele Vue Optics, Explore Scientific, Sky-Watcher, William Optics, and Stellarvue make their own focal reducers optimized for use with their telescopes. This innovative software solves the time-consuming problem of trying to pinpoint the North Celestial Pole. Go behind the scenes with Celestrons product development team and learn more about our award-winning and patented innovations. Melotte 15 - First Process in PixInsight (easy! Overall, this reducer does a phenomenal job at preventing gradients due to internal reflections from the camera sensor back to the glass in the reducer, as I suffered with the Antares reducer. Reducer - Corrector There is a way to make subjective data more useful and that way is proper blind, or better still. The Antares focal reducer comes in small box. Contiguous US Customers:All items we sell ship for free within the Contiguous US. Best evidence would by obtained by using a camera and evaluating the image both by eye and with a computer analysis. But nearly every observer who installs one of these devices is pleased with their performance. No retailers currently carry this product. Advanced designs for Schmidt-Cassegrain scopes such as the Meade ACF or Celestron Edge HD have optical elements in the tube to correct for coma and field flatness. Even though they may have been slightly dimmer, galaxies were a bit easier to tease out of the urban light soup I deal with. Wow, that is a very detailed discussion! Celestrons FREE planetarium app is an astronomy suite that redefines how you experience the night sky. Many focal reducers are meant to be used within a few millimeters of the specified working distance to achieve the best possible image results. I own both and concur heartily. Again, these focal reducers are often provided by the telescope manufacturer. Have a promo code? We have corrected # (iii) after equations 6 & 7. Antares Click Lock Visual Back - posted in Cats & Casses: Here is the situation:I bought a Celestron CPC 1100 for visual use.Want to put on the scope simulteanously a6.3 focal reducer, filter wheel, and aneyepiece turret. At least these two units I tested make the answer - whatever. However, manufacturers virtually never provide this specification. Unlike . Because of their distinct optical design, slower Schmidt-Cassegrain telescopes (SCT) with focal ratios of f/10 require a different design of focal reducer compared to refractors. It was used strictly for imaging, not visual observing. Sign up to get exclusive deals, observing tips, and new product announcements. Copyright 2021 Stargazers Lounge Still not sure what is the right gear for you? This rugged, 3-in-1 device features a true tactical 3-mode flashlight, a hand warmer, and a portable power bank for recharging your personal electronics on the go. https://www.celestron.com/products/reducer-corrector, //cdn.shopify.com/s/files/1/1935/4371/products/94175_reducer_corrector_01.jpg?v=1603736883, //cdn.shopify.com/s/files/1/1935/4371/products/94175_reducer_corrector_01_medium.jpg?v=1603736883, Popular Science by Celestron StarSense Explorer DX 5" Smartphone App-Enabled Schmidt Cassegrain Telescope, Advanced VX 8" Schmidt-Cassegrain Telescope, C9.25 Optical Tube Assembly (CGE Dovetail), Advanced VX 6" Schmidt-Cassegrain Telescope, Advanced VX 700 Maksutov Cassegrain Telescope, CGX-L Equatorial 925 Schmidt-Cassegrain Telescope, CPC 1100 GPS (XLT) Computerized Telescope, CGX-L Equatorial 1400 Schmidt-Cassegrain Telescope, CGX-L Equatorial 1100 Schmidt-Cassegrain Telescope, CGX Equatorial 925 Schmidt-Cassegrain Telescope, CGX Equatorial 800 Schmidt-Cassegrain Telescope, CGX Equatorial 1100 Schmidt-Cassegrain Telescope, CGEM II 1100 Schmidt-Cassegrain Telescope, Advanced VX 9.25" Schmidt-Cassegrain Telescope, Advanced VX 11" Schmidt-Cassegrain Telescope, Not compatible with #93648 Off-Axis Guider, not compatible with #93519 2" Mirror Diagonal (discontinued), Currently not compatible due to mechanical interferences. One of the most important factors in a telescope is its transmissionthe percentage of light that reaches the focal plane. So it provides a 0.63x design reduction factor when used with an f/10 SCT at the specified working distance. Focal Reducer, 2", 0.7X. Thanks for any advice or experience you could share. The two samples I have PERFORM IDENTICALLY. Some faster refractors with a focal ratio of f/6, for example, only require field flatteners and not focal reducers. if the illuminated field is 27mm wide without the reducer, it will be 27 x 0.63 = 17mm with it in place.

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