Gso 6 inch f9 rc. Page 3 of 4 - GSO 6inch F12 Classical Cassegrain It’s A Winner! - posted in Cats & Casses: I am not really sure what the point of bringing this classical Cassegrain to market when GSO is already selling an RC of the same aperture. Thanks to the carbon tube, the GSO RC 355mm f/8 not only is more stable and lighter but also it has higher thermal stability, so it keeps the focus point more accurate during long expositions. Both should fit This 250mm (9. Gso 8 RC Telescope Images. James R. 9”) mirror with a 1600mm focal length, giving it a relatively fast focal ratio of f/8 in a compact steel tube that’s only 18” long. market. My New GSO 6" F/9 Ritchey-Chrétien TelescopeFirst Glimpse of GSO 6" RC AstrographSpecifications: D=152mm / F=1370mm RC F/9 comes with Two extension rings (1" TS-Optics GSO 6" Ritchey-Chretien Pro RC Telescope 154/1370 mm OTA. The The 8 inch RC astrograph can bring the world of professional DSLR/CCD deep space imaging to your backyard observatory at a remarkably affordable price. You don´t need an IR cut filter and can use the full spectrum with a suitable astro camera. Mar 28, 2022 · TPO 6" f/9 Ritchey Chretien - posted in Cats & Casses: Recently I purchased a used TPO 6 f/9 Ritchey Chretien optical tube. Jan 16, 2019 · SomeonePOG. Has 50mm of drawtube travel. 70 mm. /5. Dual speed 2" Crayford-style linear bearing focuser with 1. Supplied with giant 3" Monorail focuser with high load capacity. 5") Vixen-style dovetail rails. The first thing Oct 8, 2017 · Other companies manufacture RCs, but I haven't seen any others in the 6-10 inch variety, and none anywhere near the price of GSO's RCs. The OTA weight is 24 kg and it has a Losmandy style dovetail rail on both sides. Actions. Diameter Primary Mirror: 152 mm Primary Mirror 96% reflectivity dielectrically coated/minimum 1/12th wave, Quartz glass: Focal Length: 1370 mm: Focal Ratio: f/9: Optical type: Hyperbolic: Accepts Eyepiece Barrel Ø: 50 Two TPO 25MM Spacers for 6" RC (OS-TPORC-25MMSP) TPO 50MM Spacer for 6" RC (OS-TPORC-50MMSP) TPO LRS Crayford Focuser for Ritchey Chretien Telescopes (OS-CF-LRS) TPO 2" to 1. Feature a 6-inch aperture and a fast focal ratio of f/4. Includes 2" to 1. $129 Plenty in stock! Shipment here! GSO Professional Dobs come with a 2" Wide Angle Super Plossl eyepiece for Wide Angle / Deep Space Observation [Unavailable in other brands]. You also get an 8×50 straight-through finder scope, which attaches to the standard Vixen/Synta-style shoe on the tube and is more than sufficient for most Nov 12, 2014 · So I got 3 GSO primary mirrors that were good to very good. Reply. Feb 6, 2024 · Tested by. Aperture: 406mm (16”) Focal ratio: f/8. 3. If I needed the longer focal length the 8" Newt is a no-brainer. This RC OTA comes with 250mm (9. A Ritchey Chretien astrograph with features to please imaging enthusiasts is finally here. This telescope offers views and images that rival and exceed those of large Schmidt-Cassegrain and premium apochromatic 6'' (152mm) Newtonian Design. 84”) Focal ratio: f/8. Ranging in aperture from 6” to 16” and offered in various f-ratios, these mirrors are made from optical grade BK-7 glass. The 12" f/8 RC is a first-class 12" astrograph for fixed installation with maximum performance at an affordable price. Also find Astronomical Telescope price list | ID: 22268474862 The tube weight is around 42 kg. The PHOTON Newtonian reflector with 150 mm aperture and the focal ratio f/6 is optimised für observing and planetary photography - an ideal beginner´s telescope. I have not seen an undobbed 6 inch f/8 for sale in a long time in the U. That means that it has both a parabolic primary and secondary mirror. 6 inch Parabolic 1/12 wave. Mar 13, 2023 · GSO has a 6 inch f/6. If anything you may have issues with the drawtube entering the ota, if that occurs you have to lift the mirror by increasing spacing. - Enhanced Aluminum (SiO2/TiO2) Overcoat - 96. A group created on 09/16/2016, owned by Vincenzo Galletti, categorized as Specific to certain equipment . 76′. It comes with the curved radius blocks and mounting hardware that is required to make use of this Dovetail with those OTAs. 8x. High-quality parabolic primary mirror with 94% Note that an RC has two adjustable mirrors. The GSO 0. also it appears that the rc telescopes tend to have better mirrors than the newtonians and the newtonians also appear to have an issue with mirror shifting while slewing. EUR 753,00 RRP EUR 887,00 you save 15. Out of Stock. •. With an 8" aperture, this easy-to-use Dobsonian telescope is an excellent choice for visual astronomy. 1% TS-Optics 6 inch f/9 RC Telescope on Skywatcher EQ3 GSO's parabolic primary mirrors are perfect for those who want to build their own telescopes or replace mirrors in older ones. With a focal length of 2400mm, it's ideal for crisp and razor-sharp visual observation and imaging. With or without a focal reducer/field flattener, the images are flat and aberration free. 1% GSO dust cap for 6" Newtonian and 6" RC telescopes made of plastic Specifications. 6" (150 mm) optical aperture. Secondary mirror: Hyperbolic with enhanced Al coating to 95% Mar 29, 2020 · However, for CCD imaging, the GSO 8-inch Ritchey–Chrétien is an ideal mid-sized instrument for CCD imaging. The GSO Dobsonian line is particular model serves a very clear purpose, to offer a large aperture and an excellent image quality at reasonable cost. RC 6: 6" f/9 Ritchey-Chrétien Telescope: Optical Design: Ritchey- Chretien with a hyperbolic primary- and secondary mirror. Aperture: 153mm (6") Focal ratio: f/9. Suits RC-6 6" and RC-8 8", GSO RC telescopes, etc. I have seen several good mirrors in the 6"f/6 , 8"f/6 and 10"f/5 size. 475X Light Gathering Power. Off-axis image quality is much better with the RC. Enhanced Aluminium Coating, 94% Reflectivity. 6" or so, the RC6 0. 67X reducer? Jun 13, 2019 · For Ritchey-Chretien telescopes such as those manufactured by GSO, there are also dedicated focal reducers with a reduction factor of 0. I see that there are several brands that appear to look the same except for color and name on the tube as if they all come from the same manufacturer. Posted December 27, 2012. Mfg #: PATM-GS-P12F5SET. GSO are distributing these scopes in varying configuration too Orion, Astronomics and under their own name to a number of retailers in Australia. 8" F/8 M-LRS Ritchey-Chrétien Metal OTA (black) Ritchey-Chretien optical tube assembly with 200mm f/8 primary mirror. The dovetail makes use of existing Dec 7, 2014 · Joined: 30 Jan 2008. Aperture: 356mm (14”) Focal ratio: f/8. May 6, 2020 · A GSO 6"f5 is designed to reach focus with a camera. High Performance Newtonian Are Portable GSO 8-inch f/6 Dobsonian Telescope Deluxe Version. Aperture 12" / 304 mm. EUR 555,00 RRP EUR 639,00 you save 13. With a focal length of 1836mm, it's ideal for crisp and razor-sharp visual observation and imaging. Optical design True Ritchey-Chrétien Cassegrain-type two-mirror optics, with hyperbolic primary and secondary mirrors. 7x to 0. TelescopicWatch. 7. Focal Ratio f/9. View Product The new GSO 2" CNC machined dielectric diagonals offer an excellent mechanical and optical quality, the special feature as follow: * Optical glass BK7 mirror blank. I used a collimation laser with an 1mm barlowed attachment to have a sharp laser point. Decades ago, this configuration was a favorite of many dedicated lunar and planetary observers. Bintel GSO RC8 f/8 Astrograph RC Telescope. Focal length: 1370mm. Focal length: 2000mm. This recessed focuser position helps maximize contrast by blocking stray off-axis light for high-resolution performance. Combined together these mirrors provide a high-quality flat image of the object you are observing. Multiple knife-edge internal baffles. Posted 21 December 2014 - 06:25 AM. 9 Newtonian Astrograph and I am considering upgrading to a higher focal length. The 10 inch models can be obtained Buy GSO 6 inch f/4 Newtonian Reflector Telescope in India only at moderntelescopes. Gso 6" F9 Rc Telescope With Bresser Exos Ii German Eq Mount ₹ 1,15,500 / Piece Get Latest Price. GSO, for example, has a 0. RC = Ritchey-Chretien. The telescope collects 55% more light than an 8-inch telescope. The aluminum coating is Tejraj And Co. The Apertura 6″ Ritchey-Chrétien telescope (identical to various other 6” f/9 units from iOptron, GSO, TPO, and Astro-Tech) is a great choice for astrophotographers looking to capture high-resolution images of galaxies, thanks to its impressive 1370mm focal length. Our 14" f/8 RC Astrograph illuminates a max. Dual-speed Crayford focuser. Accepts Eyepiece Barrel Ø: 50. Suits RC-6 6" and RC-8 8" GSO RC telescopes, etc. Lightweight and easy to guide, this little Newtonian comes ready to go RCOS 20" f/8. IIRC 826 are highly regarded. Altair Astro 6” Ritchey Chretien review. The eye is only capable of high resolution in a very small area of the retina, the fovea centralis: Mar 14, 2022 · StellaLyra Dobsonian Telescopes. With a 10" aperture, this Dobsonian telescope has 56% more light ability than 8" models but is still relatively portable. TPO doesnt have an instruction manual, so you have to use the one for Astronomics or Orion. Write a Review. So, I thought I’d put my thoughts Another great thing about this 6-inch RC telescope is that it features a hyperbolic optics system. 200mm f/8 true Ritchey Chretien provides excellent light grasp and resolution. For imaging, I would recommend the GSO 8-inch f/8 Ritchey–Chrétien, which costs the same as the GSO classical Cassegrain. 2 Carbon Truss Telescope, ION Milled Astro-Sitall Optics - - Zero Expansion Astro-Sitall, ULE Type, or Zerodur RC Optics, Tested and Certified to at least 1/20th Wave RMS. field diameter of approx. RCOS 20" f/8. Ritchey-Chrétien with hyperbolic mirror optics. The Newtonian optics ensure excellent light-gathering capabilities, while the Buy GSO 8 " RC telescope in India only at moderntelescoeps. 9") f/12 Cassegrain from GSO is a modern take on the classical Cassegrain design. $199. • dual-speed 2" Crayford focuser. Sep 16, 2016 · Explore /. Viewing the lunar surface will feel like you can reach out and scratch plaster! Venus and its phases are also viewable. Focal length: 3248mm. The advantages of the TS-Optics RC Telescopes at a glance: Jan 16, 2019 · For the modest sum of $399 one can get a new 6" (150 mm) F/9 RC produced by GSO and be able to make the determination of whether or not I should spend at least $3,500 to order a GSO RC12. Our 12" f/8 RC Astrograph illuminates a max. • enhanced aluminum optical coatings, overcoated with quartz. Optical specifications 8” aperture, 1625mm focal length, f/8 focal ratio. 5" long optical tube. The GSO RC allows three adjustments: a) The optical axis (primary mirror) and focuser vs the tube axis (step 2). 55" or so. As to the refractor: No I have not tried a stop down ring. In arc seconds, the RC6 has smaller stars. Newtonian Provide Good Wide Field Image For Deep Space. Secondary mirror diameter (mm): 76. Designed to fully illuminate even the largest sensors (up to FullFrame 24x36mm), it has This item: GSO 6 inch DOB Telescope (Silver) Available on backorder. On the other hand 2 of the 3 secondaries were midocre at best, the best out of the three was accetable. 00 SOLD OUT! Place your order : FF670-M-LRS Focuser collimating ring assembly. Aperture 150 mm / Focal length 750 mm / aperture ratio f/5 The 6 and 8 inch telescopes are mounted in solid tubes which can be either made of steel or carbon fibre. This assembly has an extended tube in front of the focuser that serves as a built-in dew/light shield. On the scope side, the reducer includes a 2” barrel with female M48x0. This compact and affordable 150mm (approx. 360X Maximum Magnification. 8”) mirror with a 2000mm focal length, giving it a relatively fast focal ratio of f/8 in a compact steel tube that’s only 24” long. Will the Classical Cassegrain give good results for DSO as well if used with 0. Subscribe to back in stock notification (requires account login) This 200mm (7. 75 threads. However, the long focal length of this Dec 13, 2019 · The Cave Optical 8-inch, f/15, true Cassegrainian boasted excellent optical quality, but it was compromised by its hefty weight and puny 1. 8") f/12 truss-tube Cassegrain from GSO is a modern take on the classical Cassegrain design. 25-inch focuser that made any rich-field viewing absolutely impossible. The 1387 can of course be adjusted to 1370, but I wouldn't bother at this stage. Mar 3, 2015 · Note that an RC has two adjustable mirrors. Ritchey and Cretien designed the RC for the sole purpose of correcting the optical . A reasonable priced complete set for all astrophotographers - fitting to CCD and DSLR cameras - ideal for started with astrophotography. Focal length 2432 mm, focal ratio f/8. 25" eyepiece adapter. The diffraction spikes on my third replacement lens cell are symmetrical and not bad at all. 1200mm Focal Length. * Reflectivity 99% dielectric coating in the Deluxe star diagonal mirror. 9% Reflectivity. will it be a worthy upgrade over 6 inch RC, that I currently have? I have seen planetary imaging limits on 6 inch RC, but it is ok for DSO. * Brass compression rings both for 2" and 1. 22X Minimum Magnification. Lightweight and easy to guide, this little Newtonian comes ready to go out of the box with a 2" Crayford-style focuser, dual split-hinged mounting rings, an 8x50 straight-through finder, and Optics and Tube. Manufacturer Product Number: VRC6. 9 focal ratio this easy to use Dobsonian telescope is an excellent choice when starting out in visual astronomy. Aperture 6" / 154 mm. 9 Focal Ratio. I'm looking for a 6-inch Ritchey Chretien telescope (RCT). I have seen many people propose this scope as a possible purchase for either longer focal length DSO or planetary imaging, but I have yet to see anyone who has bought one post a detailed review. 25". The TS-Optics 2" 1x Flattener for RCs is compatible with both the 6" and 8" GSO RC telescopes. 3 primary, 0. Groups /. Focal length: 2848mm. Limiting visual magnitude: 12. Ritchey Chretien (RC) Telescope Are Leading Astrophotography Class Telescope. 44 x focal reduction = diagonal field correct. 1. net, India's largest telescope store. Hybrid Newtonian High Performance Telescope Specifically For Both Visual Astrophotography. 6. Description. GSO FF670 collimating ring for adjusting the tilt angle of the telescope focuser Compatible with the following GSO telescopes: RC6, CC6, RC8 and CC8 Helps ensure sharp images across the field of view, especially for cameras with larger sensors Spring-loaded for easy adjustment during imaging sessions Easily inserted between the rear cell and the focuser while taking only 15mm of back focus Jul 22, 2009 · The Guan Sheng Optics RC-200 (8”) f/8 telescope (made in Taiwan) (astrograph) arrived from a supplier on the other side of the country within three days of the order being confirmed. 4cm / 15. Despite its long focal length, the optical tube of this Jump on a journey of celestial discovery with the Apertura 6"" f/4 Imaging Newtonian OTA. Specification: * 16 GSO RC 6" with Twilight Mount ₹ 68000 ARRIVING SOON Pre Book Now. In fact, there is very little at all on 6 RCs or RCs in general. 8x focal reducer, the focal ratio would be f/9. The OTA weight is 30 kg and it has a Losmandy style dovetail rail on both sides. 8 inch steel tube RC. Without corrector, 35 mm are possible. The 6 f/6 also has a 2 inch focuser. useful magnification: 304x. Availability: Expected early July. The telescope is perfect for imaging star clusters, bright nebula and galaxies. Minimum Order Quantity: 1 Piece. 2,728. Aug 23, 2020 · Omni 150 f/5 vs. More Info. This Dobsonian is perfect for deep-sky and solar system observing. 25" adaptor. Quick Overview Ritchey-Chretien OTA with 200mm f/8 primary mirror for astronomical imaging with DSLRs or dedicated CMOS or CCD astronomy cameras Fully and rigorously tested on site for cosmetics, mechanical operation, and optical performance by a master optician to ensure excellent overall telescope Nov 12, 2021 · Page 1 of 2 - Opinions on GSO/Orion 8" or 10" f/8 Ritchey-Chretien Astrograph - posted in Beginning Deep Sky Imaging: Orion 10 RC f/8 for reference I am planning to upgrade my mount and OTA in my observatory soon. This telescope offers views that rival apochromatic refractors at a tiny fraction of the price. GSO 6'' F/9 Ritchey Chretien Telescope. My 480mm refractor has a pixel scale of 1. Main body height is 63mm. Max. The StellaLyra standard Dobsonian models include: – StellaLyra 8″ f/6 Dobsonian: With 203mm (8″) optics, 1200mm focal length and f/5. S. Ive been coming around to the idea of a 6 reflector as a good all-around scope to start with. YMMV. 28 May 2024. 85. 0. Our #: PATM-GS-P12F5SET. Optics and Tube. 25'' CNC Machined Caryford Focuser With Tension Lock. Oct 3, 2023 · The stars will be bigger in terms of pixels. I haven't tried it, but an 6 inch f/8 is a lot of moment arm with a Aug 21, 2021 · The UK's BEST 10" Dobsonian telescope! Designed and manufactured to a very high standard by Guan Sheng Optical (GSO) in Taiwan. GSO 10-inch f/5 Dobsonian Telescope Deluxe Version. Add to cart. The compact and lightweight design makes it a portable powerhouse. Whether I buy a TPO, AstroTech or GSO from Highpoint is going to depend on if any of them have it on sale. All GSO dobsonian use optical quality BK7 glass, cooling fans built into the rear cell to decrease cooling times, also all dobs use a roller bearing on the azimuth surface providing dozens of support points for smooth swivel motion. The focuser is set. I am considering the GSO/Orion 8 or 10 f/8 Ritchey-Chretien Apr 14, 2021 · Design: Ritchey-Chrétien optical tube assembly w/6" F/9 primary mirror. Aperture 150 mm / focal length 900 mm / focal ratio f/6. f/ ratio: 9. Resolving capacity: 0. from AP tech sheets, you have the diagonal dimension with corrected field with a two simple formulas, for CCDT67 (305 is the focal lenght of the reducer lens) (305 - sensor distance) / 305 = focal reduction. 137mm Focal Length. I'm hoping to get an 8" carbon RC myself. F5 with a good coma corrector such as the TS GPU will yield excellent stars once collimated. - Supporting Fringe Analysis and Interferometric Data included. Despite its long focal length, the optical tube of iOptron 6" Photron RC Telescope Highlights. The super-steady linear-bearing Crayford 6. 00. The 16"-f/8-RC astrograph illuminates about 70 mm field very well. ADM "V" Series Dovetail for 6" TPO RC This dovetail was designed by ADM to fit to Astro-Tech, Orion, GSO and TSO 6-Inch f/9 Ritchey-Chretien OTAs. Bintel GSO RC8 f/8 Astrograph Carbon Fibre. 4. The 12" and 16" I have startested were not that good as the smaller ones. GSO 12" f/5 Parabolic Primary and 70mm Secondary Telescope Mirror Set. At about 1300 mm in length, the 16" RC still has room in compact observatories. The OTA comes with carbon trusses having a thermal expansion of nearly 0. • diffraction-limited or better BK-7 mirrors. Teleskop-Service has optimized this 14" RC especially for astrophotography. 2x full length (39. In pixels, the fwhm in RC6 is 4-4. The RC does not have off-axis coma, the SCT does have a lot of it. TS-Optics GSO 12" f/8 Ritchey-Chretien Pro RC Telescope 304/2432 mm OTA. GSO RC 8" OTA ₹ 75000 ARRIVING SOON Pre Book Now. ₹ 1650 ₹ 0. F/7. Secondary mirror obstruction: 50%. Optical design: Ritchey-Chretien reflector. 75x focal reducer provides about 80mm of back focus, enough to accommodate off-axis guiders and filter wheels. What has been surprising is the lack of reviews or any other information on this TPO branded RC. The newt would also be far easier to colimate. The 6" f/9 Ritchey-Chrétien comes with a dual-speed 2" 10:1 Crayford focuser with 41mm of focus travel and includes a 1. Sort images. Secondary mirror: Hyperbolic with enhanced Al coating to 95% reflectivity. 02 of course) Edited by Censustaker, 01 October 2017 - 10:50 PM. Oct 1, 2017 · For EAA in the 6" aperture and the similar price range maybe consider the GSO 6" imaging newts out there which are $299 and f/5 would would be better suited for EAA (my $0. Fixed primary mirror. Optics are void of coma, chromatic aberration, and spherical aberration. Dire. This 6-inch RC telescope features a 137mm focal length. Ive found a lot of info on the Omni 150, less on the GSO f/6. -Very back heavy for balancing. 5" image height and curved field to generate this on-axis spacing versus WFE plot. Also came in a RC foam insert for shipping. The image is brighter with better resolution. - Offering White Metal Gso 6" F9 Rc Telescope With Bresser Exos Ii German Eq Mount, 1370 Mm at Rs 115500 in Mumbai, Maharashtra. No instruction manual is included. Note that looking at a 5 mw laser point could irreversible damage your eyes. -Need a 2” spacer added to reach focus with a diagonal and an ES eyepiece. Longer exposures and better tracking will be required than with smaller focal ratio 8-inch telescope. I don't know the BWD on that scope so I used 7" as a reasonable guess, considering the thickness of the primary, its cell, and leaving enough rear focus for a low-profile focuser and star diagonal. Modern Telescopes, India's largest telescope store proud to present GSO 6 Inch F/5 telescope. The tube is supplied with a Losmandy level prism rail on both sides. 6. 25" adapter and a selection of 2" & 1" extension rings to make connecting a variety of imaging accessories straightforward. 94% enhanced reflectivity on primary and OPTICAL TELESCOPE TUBE by- GSO 6" f/5 Newtonian and optimized focuser - ready for Photo-Visual. Powerful and transportable GSD 880 Dobsonian Telescope with 10-inch aperture and 1250mm focal length. Primary mirror: Hyperbolic primary mirror with enhanced Al coating to 95% reflectivity, with protective quartz layer. Another owner of the scope would need to comment on that. Feb 20, 2021 · This Astro-Tech AT6RC Ritchey-Chrétien astrograph has: • 6" f/9 true Ritchey-Chrétien hyperbolic mirror optical design. View Product. I am currently using an Orion 8 f/3. Specifications. All mirrors have a reflective aluminum coating with a reflectivity of 92-93%. TS-Optics GSO Photon 6" F6 Advanced Newtonian Telescope with Metal Tube. Mar 10, 2024 · Hi, I am thinking of getting GSO 8 inch Classical Cassegrain OTA. lukewarmpoopnuggets. The black-anodized body slips into a 2” focuser or adapter, and it secures accessories with 2” barrels using a non-marring compression ring. The parabolic mirror size from 6" to 24", all of these mirrors were made by BK7 or Quartz quality optical glass, all mirrors have an enhance aluminum reflective coating, reflectivity is approximately 93%. So you can benefit from our experience before buying GSO 6 "f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION Feb 20, 2023 · The UK's BEST 8" Dobsonian telescope! Designed and manufactured to a very high standard by Guan Sheng Optical (GSO) in Taiwan. The 6″ f/9 Astrograph is unique in offering ample aperture and long enough focal length to provide good image scale. The focal length of 1625mm results in suitable image scale for a multitude of deep sky Teleskop-Service has optimized this 12" RC especially for astrophotography. F/5 Focal Ratio Allowing Rapid Capturing Of Dim Deep Space Objects, Yet Minimize Coma And Provide Better Sharpness. With a focal length of 3000mm, it's ideal for serious lunar and planetary imaging and razor-sharp visual observation. Dec 4, 2012 · If you want to make images you definitely should chose the RC over a 6" SCT. The newt would work better on dsos since it has a shorter focal ratio. Focal length (mm): 1370. 505. In other words I need about 1/3 of the exposure time compared with the original setup at f/9 and 1370mm. Comes with a large 8x50 Multi-Coated Achromatic Finderscope GSO's CNC Machined Crayford focuser comes with a 2" 'DUAL SPEED' 1:10 Micro Focusing Capability [Unavailable in other brands]. Even with a 0. So that’s like 6”-7” pass the focuser for focus. You may have to recoat the mirrors. * Housing is an all metal construction. F/5 Focal Ratio Allowing Rapid Capturing Of Dim Deep Space Objects, Yet Minimize Coma And Provide Better SharpnessNewtonian Provide Good Wide Field Image For Deep Space. Focal Length 1370 mm. May 25, 2020 · In a world abundant with Schmidt-Cassegrainian telescopes (SCT), the GSO ( Guan Sheng Optical of Taiwan) 8-inch offering (MSRP: $899) is throwback to the all-mirror classical Cassegrain design that uses a parabolic primary and hyperbolic secondary. Set-up is as easy as you can imagine very simple assembly with the rocker box and put it on the ground, insert the telescope tube and put the springs in position and you're ready to go to navigates This compact and affordable 150mm (approx. GSO 6" f/6? - posted in Reflectors: Ive been doing a lot of research in getting my first telescope - since everything is out of stock, I havent been able to make any impulse purchases, which is a good thing. Secondary mirror: Hyperbolic with enhanced Al coating to 95% reflectivity; protective quartz layer; O Dec 27, 2012 · 2,609. -I’m happy with 2 speed focuser, only going to do visual and it seems really smooth. But that focal length is served well by my 6"RC at the moment. 75x reducer for RC scopes with a back focus of 80mm, which is usually enough room for a wide range of astronomy cameras and accessories and spacers as needed. Secondary mirror holder: 4-vane all-metal spider The 6" f/4 Newtonian Astrograph Reflector features a precise, 2" dual-speed (10:1) linear-bearing Crayford focuser which lies 7" back from the front of the 22. 25” compression ring adapter. This RC OTA comes with 200mm (7. Some have 96% and some 99% reflectivity mirror coatings so variants can be bought at a range of prices starting at around £450 for the 6 inch model and £950 for the 8 inch model. 25" Adapter (OS-A2125) It can be challenging to figure out which adapters and other accessories you need in order to use your TPO 6-Inch RC visually or photographically. If you want to observe this does not matter that much. 60 mm. By Dr. 1370 mm focal length. An excellent choice for visual astronomy. Low thermal expansion quartz mirrors. RC 6: 6" f/9 Ritchey-Chrétien Telescope with EXOS-I: Optical Design: Ritchey- Chretien: Diameter Primary Mirror: 152 mm Primary Mirror 96% reflectivity dielectrically coated/minimum 1/12th wave, Quartz glass: Focal Length, Focal Ratio: 1370 mm, f/9: Recommended Maximum Visual Power: 33x through 300x approx. Feb 6, 2024 · The Orion 8” f/4 Astrograph includes a standard 35mm, 2” diameter extension tube to each focus with eyepieces for visual use, a collimation cap, and a 1. Weight: 5. 5mm Secondary Spider Vane Support. Secondary mirror: Hyperbolic with enhanced Al coating to 95% GSO offers very HIGH quality parabolic mirrors for the people who want to build their own telescopes or DIY project. Aperture: 250mm (9. 8mm Dec 31, 2017 · Now that you wrote I woke up, got one long spacer between reducer and sensor, removed the one at the scope and got a clear image at the 10mm mark of the focuser with a resulting focal length of 800mm and f/5. 8kg. f/9 focal ratio. SKU: GSO-DOB-6S Categories: Reflector Telescopes, Telescope Tags: Dobsonian, GSO, Telescope. 5, in the 480mm, 2 or so. This 6" f/12 Cassegrain from GSO is a modern take on the classical Cassegrain design. TS 6" f/9 RC astrograph and travelling telescope - compact Ritchey-Chrétien telescope with 154 mm aperture and 1370 mm focal length - very well suitable for astrophotography. – StellaLyra 10″ f/5 Dobsonian: With 254mm (10 GSO 6'' F/5 Newtonian Telescope OTA . However, the scope did enlighten me with its sharp image, high contrast, and the amazing sight of spokes in Saturn's rings before they Dec 23, 2015 · I understand what you said. Jan 16, 2019 · -Looks just like a recycled RC but longer tube. The precisely figured hyperbolic primary mirror is made from quartz for enhanced thermal stability. Test and Adjustment GSRC6M GSO 6 This telescope is checked, measured and adjusted if necessary before delivery. Primary mirror: Hyperbolic primary mirror with enhanced Al coating to 95% reflectivity. The deluxe model comes with 2" Micro 10:1 Crayford style focuser and 1. Jan 3, 2020 · This is too slow of a focal ratio. 2 in stock. Sometimes some old meade 6 f/8 come up for sale on Craig's list/FBMP. 1x 50mm / 2" and 2x 25mm / 1" extension rings. I had to buy better ones. How we adjust: About us Please contact for advice on this telescope. 6") f/4 Newtonian optical tube assembly (OTA) from GSO has fast optics for imaging extended deep-sky objects with a DSLR, webcam, or dedicated astronomy camera. In the latter configuration, you have a pure mirror system without any lenses. Oct 2, 2023 · I ran his GSO 6" f/9 RC with an f/3. Location: Sevenoaks, Kent. 25" adapter. Our Price: $705. ₹33500 ₹28900. 1 × Universal Mobile Phone Binocular Telescope Adapter. RC Are Main Telescope In Most Of Large Observatory And Even Hubble Space Telescope Provides Exceptionally Flat Field And Coma Free Image - Allowing Pin Point Stars Across Image. Without corrector lens you have a field of about 35 mm diameter with very good correction. or wy nk ad rh vs qc pk kw ni