. It gave me very high contrast images with my unmodified Canon T3i DSLR. Additionally, the tube length has been slightly shortened to optimize performance for wide-field prime-focus photography. A Dual-Speed 10:1 ratio focuser is now included for excellent focusing precision. The f/4 optical system allows the user to capture wide field images of faint deep space objects such as nebulae, open clusters, and galaxies over six times faster than using an f/10 system. The new Skywatcher Explorer-250P DS has the same superb parabolic primary mirror as the original Explorer-250P but features a 1.25"/2" Dual-Speed 10:1 ratio focuser for enhanced focus control and a shorter tube length with the secondary mirror positioned closer to the primary mirror for more convenient prime-focus photography. Sky-Watcher - The worlds largest telescope manufacturer. The Newtonian optical design is one of the most basic, and therefore trouble free, systems available to astrophotographers. 680 24th Avenue SW Norman, OK, 73069, USA © 2020 Astronomics.com. For the price at this aperture it made an excellent imaging scope and a superb visual instrument as well. The Sky-Watcher BKP 250 OTAW-dual speed Newtonian Reflector incorporates the same superb mirror-set as the Sky-Watcher Black Diamond 250/1200 OTAW Series, but with two significant advantages. Page 1 of 2 - Sky-Watcher Classic 250p - posted in Reflectors: Hello all, I just purchased this telescope I’ve had it for 3 days and have only been using telescopes for about 2 years now. . Even better field edge performance for deep space astrophotography, and visual use, can be achieved by adding the Sky-Watcher Quattro coma corrector. I used this scope for imaging for 6 years and the only problem I ever really had was the weight of the scope. https://www.skywatcherusa.com/products/sky-watcher-flextube-250p Optical Tube Assembly. Previously I picked up a cheap tiny beginners scope that got me through until I was able to get a nicer one. You must have JavaScript enabled in your browser to utilize the functionality of this website. The Sky-Watcher BKP 250 OTAW-dual speed Newtonian Reflector incorporates the same superb mirror-set as the Sky-Watcher Black Diamond 250/1200 OTAW Series, but with two significant advantages. The manufacturer specs for weight don't include the weight of the reinforced focuser which weighs in at just over 6 lbs., pushing the limit of what most mid-level mounts can handle. But, for the “beginner” that has had some experience and wishes to invest in a serious buy as their next scope, the FlexTube is a viable option. Who is the SkyWatcher FlexTube 250P SynScan Best Suited to? The Sky-Watcher 10" Quattro Imaging Newtonian with dual-speed focuser is optimized for wide-field deep space imaging, but can also be used for pleasing visual observing. Also, the tube length has been slightly shortened to optimize performance for prime-focus photography. It incorporates a superbly-figured multi-coated borosilicate optical glass mirror-set. If you are looking for a large fast optical system to enhance your astro-photography then the Quattro series from Sky-Watcher should fit the bill. But if you are fine with collimation, then this would be a 5 star review for you. All Rights Reserved. I learned a lot using this scope and got some great photos. The Sky-Watcher 10" f/4 Quattro Imaging Newtonian has . The Sky-Watcher 10" f/4 Quattro Imaging Newtonian has . Add Your Review. . | This gives you the ability to acquire more images in less time. And at F/4 the exposure times were short enough that the weight of the scope wasn't a problem for my Celestron CGEM mount as long as the wind was fairly calm. It wasn't easy to travel with due to it's size, but it held collimation pretty well even during transport. The FlexTube is not a beginner’s Dobsonian as there are more than a few things to know before you attempt to tame this beast. These large newtonians get a bad reputation for imaging for no good reason. Astronomics is a family-owned business that has been supplying amateur astronomers, schools, businesses, and government agencies with the right optical equipment and the right advice since 1979. 254mm aperture/1000mm focal length f/4 Newtonian reflector optics Fully multi-coated borosilicate mirrors 2” 10:1 ratio dual-speed . Forgot to star rate this at 4 stars. 254mm aperture/1000mm focal length f/4 Newtonian reflector optics. Even better performance for astrophotography and visual use can be achieved when used in combination with Sky-Watcher. Copyright © 2011- 2018 Pacific Telescope Corp. All rights reserved. This Sky-Watcher 10" Quattro imaging Newtonian is ultra-fast and incredibly simple to use. Equatorial & Altazimuth Accessories & Adapters, Personal Planetariums / Electronic Sky Guides, Rechargeable Batteries And Power Supplies, Astronomics Used, Demo, Closeout, Spring Cleaning Page, Explore Scientific Sky Rocket to Savings In August, Explore Scientific APO Triplet Carbon Fiber, Explore Scientific APO Triplet FCD100 Carbon Fiber, Explore Scientific APO Triplet FCD100 Series, Explore Scientific APO Triplets Essential Series, Sky-Watcher Truss Tube Collapsible Dobsonian, Sky-Watcher 10" Quattro 250P Imaging Newtonian, Celestron NEXYZ 3-Axis Universal Smartphone Adapter, Sky-Watcher Quattro Imaging Newtonian Coma Corrector. JavaScript seems to be disabled in your browser. 3 Review(s) Only reason not 5 stars is because collimation is the trickiest part! The Sky-Watcher Classic Dobsonian Telescope 254mm/1200mm (10") has a "paraboloidal" primary mirror to eliminate spherical aberration and a four-arm, secondary- mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss.