Features an Ohara ED doublet objective that includes an S-FPL53 ED glass element. 

242 mm focal length results in a fast f/4.8 focal-ratio.

Precise non-rotating helical focuser for fine focus adjustment. 

Has both a T2 thread and 1.25” socket so connecting your autoguider, camera or eyepiece is easy. 

Alignment rings are provided, each with 3 nylon-tipped screws.

The bracket's finderscope mounting foot is a regular Sky-Watcher / Celestron / Vixen-style mini dovetail so fits into most finderscope shoes. The Vixen-style 45 dovetail bar features a 1/4-20 thread for tripod mounting.

• The ultimate portable astrophotography telescope with Bahtinov mask built into the cap for quick and easy focusing.

• 43 mm image circle is perfect for full-frame cameras in this 51 mm aperture petzval refractor. 
• The f/4.9 focal ratio allows for fast light-gathering power on this wide-field telescope.
• Includes the Iconic Soft Cat Carry Case.

William Optics UniGuide 50mm Slide-Base Guide Scope with 1.25" RotoLock - Red - M-G50PB-WG

• Get in perfect focus with this high-quality William Optics Guide Scope.
• 1.25-inch RotoLock design for smooth and accurate focusing.
• This is the Red version.

• Focal Length: 200 mm (7.87")

• Focal Ratio: f/4

• Diameter: 50 mm

• Total Guide Scope Length: 265 mm

• Included: 1.25" RotoLock

• Focusing: Front Focuser System w. Focus Lock Ring

• Weight: 515g (1.14 lb)

William Optics Guide Star 61 APO

(Soft Carry Case included)

• Provides a full-frame image circle
• Rotatable 2" manual drawtube for coarse focusing
• Rotating dewshield for fine focusing
• Comes with a free high-quality soft case

Features

• Coma free, chromatic aberration-free, spherical aberration-free optics
• 150mm (6") optical aperture
• 1370mm focal length
• f/9 focal ratio
• Fixed primary
• Low thermal expansion quartz mirrors
• Multiple knife-edge baffle system
• 2" dual-speed Crayford focuser
• Finder scope base and dovetails bar
• Optional finder scope, diagonal and 1.25" eyepiece
• Optional iOptron Electric Focuser (#8451)

Package includes
#6111 6" RC OTA only

• OTA w/2" dual speed Crayford focuser
• 2X25mm, 1X 50mm focus extension
• 1.25" accessory adapter
• Vixen dovetail bar

• 700 Maksutov-Cassegrain telescope with f/15 focal ratio provides high contrast views of the planets and lunar landscapes, perfect for serious planetary imagers and visual observers.
• Celestron’s premium StarBright XLT coatings ensure maximum light transmission.
• The CGEM II, with its 40 lbs load capacity, is the latest update to the venerable CGEM mount and provides a sturdy and rigid platform.
• The drive system, consisting of low cog DC Servo motors with integrated optical encoders, steel worm gears supported by precision sealed bearings, and brass worm wheels, ensures smooth and accurate slewing and tracking.
• Accessories included: 2” Visual Back, 2” Star Diagonal with 1.25” adapter, 28mm eyepiece (2”), 8x50 finderscope

• Celestron’s top-performing altazimuth telescope system, the CPC Deluxe HD is a favorite among experienced amateur astronomers and the preferred telescope of the late Stephen Hawking
• 11-inch EdgeHD optical tube provides stunning views and sharp astroimages free of visual defects
• NexStar+ hand control and internal GPS guides users through the simple SkyAlign setup and features a 40,000+ object database
• Sturdy dual fork arm mount with upgraded gears and motors anchors the telescope for superior tracking and pointing accuracy
• Ready for serious astroimaging, CPC Deluxe HD features All-Star Polar Alignment and Permanently Programmable Periodic Error Correction when equipped with the HD Pro Wedge

• Compact mini guide scope designed for use with astrophotography telescopes up to 1500mm focal length
• Mini 50mm guide scope with bright, wide-field optics puts numerous potential guide stars in view so you'll never have to search for one!
• Adjustable-aim dovetail guide scope bracket installs on virtually any astrophotography telescope quickly and easily
• Very small and compact autoguiding system adds hardly any weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses
• Designed for use with Orion StarShoot AutoGuider (sold separately) and other similar small-chip CCD autoguiders

• 127mm Maksutov-Cassegrain optical tube
• Multi-purpose alt-azimuth mount
• Adjustable height aluminum tripod with 1.25-inch diameter legs
• 11-pound payload capacity
• SynScan GoTo telescope mount with 42,900+ object database
• Built-in Wi-Fi
• Controlled with SynScan Pro app for iOS and Android
• Freedom Find™ dual-encoder technology
• DC operation (batteries not included)

• 6" Schmidt-Cassegrain optical tube assembly (OTA)
• Features Celestron's premium patented StarBright XLT optical coatings
• 1500 mm focal length (f/10)
• Tube constructed of durable and lightweight aluminum

• Large 254mm aperture delivers dazzling views, 1200mm focal length, f/4.7 focal ratio
• Built-in Wi-Fi telescope control
• Innovative collapsible design for portability, storage, and back focus for astrophotography all while retaining collimation
• 1275x more light-gathering power than the human eye
• Patented Freedom Find™ technology uses dual encoders to allow manual control while retaining alignment
• Patented tension control handle allows for precise slewing and maximum stability
• Parabolic primary mirror with Radiant™ Aluminum Quartz (RAQ™) coating for 94% light reflectivity
• Heavy-duty rocker box with Teflon™ bearings provide a stable base with smooth motion
• 2-inch single-speed Crayford-style focuser with 1.25-inch adapter allows for use of nearly any eyepiece
• 9x50 straight-through finderscope, 10 and 25mm 4-element 1.25-inch Plössl eyepieces, and SynScan hand controller with 42,000+ object database included

• Large 406mm aperture delivers dazzling views, 1800mm focal length, f/4.4 focal ratio
• Built-in Wi-Fi telescope control
• Innovative collapsible design for portability, storage, and back focus for astrophotography all while retaining collimation
• 3257x more light-gathering power than the human eye
• Patented Freedom Find™ technology uses dual encoders to allow manual control while retaining alignment
• Patented tension control handle allows for precise slewing and maximum stability
• Parabolic primary mirror with Radiant™ Aluminum Quartz (RAQ™) coating for 94% light reflectivity
• Heavy-duty rocker box with Teflon™ bearings provide a stable base with smooth motion
• 2-inch dual-speed Crayford-style focuser with 1.25-inch adapter allows for use of nearly any eyepiece
• 9x50 straight-through finderscope, 10 and 25mm 4-element 1.25-inch Plössl eyepieces, and SynScan hand controller with 42,000+ object database included

• Explore the Universe and control your NexStar Evolution telescope with the free Celestron SkyPortal app for iOS and Android!
• Compact, portable 8-inch Schmidt-Cassegrain optical tube with StarBright XLT optical coatings and Fastar compatibility
• Computerized GoTo mount with high-performance brass worm gears and motors for improved tracking accuracy, along with reduced gear backlash
• Rechargeable lithium-iron phosphate battery with enough power for 10 hours of continuous observing
• Improved industrial design with manual clutches and integrated carry handles, plus the added convenience of two accessory trays and a USB charge port for your smart device

• Explore the Universe and control your NexStar Evolution telescope with the free Celestron SkyPortal app for iOS and Android!
• Compact, portable 6-inch Schmidt-Cassegrain optical tube with StarBright XLT optical coatings
• Computerized GoTo mount with high-performance worm gears and motors for improved tracking accuracy, along with reduced gear backlash
• Rechargeable lithium-iron phosphate battery with enough power for 10 hours of continuous observing
• Improved industrial design with manual clutches and integrated carry handles, plus the added convenience of two accessory trays and a USB charge port for your smart device

• Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces.
• Aluminum optical tube with tube vents featuring an integrated 50-mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging.
• Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories.
• Celestron’s premium StarBright XLT coatings provide maximum light transmission.
• A 9x50 finderscope, 1.25” mirror diagonal for more comfortable viewing, and 40 mm Plössl 1.25” eyepiece are all included.

• Celestron’s iconic “orange tube” design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike.
• 4-inch aperture provides excellent light-gathering ability at an affordable price. You’ll get impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula, while retaining a compact form factor.
• Fully automated GoTo mount with database of 40,000+ celestial objects automatically locates and tracks objects for you.
• SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if you’re unfamiliar with the night sky, you can easily align your telescope on any three bright objects.
• Unique single fork arm design and sturdy steel tripod all break down into separate components for easy transport and quick assembly.

• High quality 127 mm Maksutov-Cassegrain
• Fully computerized Altazimuth mount
• StarPointer™ finderscope to help with alignment and accurately locating objects
• Quick-release fork arm mount, optical tube and accessory tray for quick no tool set up
• Sturdy stainless steel tripod and accessory tray included
• Perfect for terrestrial and celestial observing
• BONUS Starry Night Special Edition Astronomy Software download with a 36,000-object database, printable sky maps and enhanced images including 3D renderings of stars, exoplanets, and galaxies