Top Crayford Focuser

SkyWatcher S11800 GoTo Collapsible Dobsonian 8-Inch (White)

  • LARGE APERTURE: Get a bright, bold viewing experience at a fraction of the cost of other optical designs..
  • INNOVATIVE COLLAPSIBLE DESIGN: Unique strut design allows for optical tube to collapse for ease of portability while keeping collimation..
  • BUILT-IN WIFI: Control your telescope using a smartphone or tablet with Sky-Watcher’s proprietary built-in wifi signal..
  • ALL METAL GEARING: Using all-metal gearing on a pair of DC servo motors, the SynScan Dobsonian combines the precise automated tracking of a computerized GoTo telescope with the bright large-aperture viewing of a Dobsonian..
  • 94% REFLECTIVE MIRRORS: Fully multi-coated borosilicate primary and secondary mirrors deliver exceptional views..
  • 42,000 OBJECT DATABASE: SynScan hand controller with 42,000+ object database will keep even the most experienced astronomer busy for countless observing nights..
  • COMES COMPLETE: All accessories such as, 2-inch Crayford-style focuser with 1 1/4-inch adapter, two super wide-angle eyepieces (25mm and 10mm), and 9x50 straight-through finder scope are included with purchase..
  • STURDY AND LIGHTWEIGHT DESIGN: When fully assembled, the Dobsonian weighs only 57 pounds fully assembled (24 pound tube, 33 pound base).
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Sky-Watcher Flextube 300 Dobsonian 12-inch Collapsible Large Aperture Telescope – Portable, Easy to Use, Perfect for Beginners, White/Black (S11740)

  • LARGE APERTURE: Get a bright, bold viewing experience at a fraction of the cost of other optical designs..
  • INNOVATIVE COLLAPSIBLE DESIGN: Unique strut design allows for optical tube to collapse for ease of portability while keeping collimation..
  • PROPRIETARY TENSION CONTROL HANDLES: These patented handles allow for accurate movement without the need for perfect balance..
  • 94% REFLECTIVE MIRRORS: Fully multi-coated borosilicate primary and secondary mirrors deliver exceptional views..
  • STEEL NEEDLE BEARINGS: Proprietary steel needle bearings ensure smooth azimuth movement..
  • COMES COMPLETE: All accessories such as, 2-inch Crayford-style focuser with 1 1/4-inch adapter, two super wide-angle eyepieces (25mm and 10mm), and 8x50 right-angle finder scope are included with purchase..
  • STURDY AND LIGHTWEIGHT DESIGN: When fully assembled, the Dobsonian weighs only 40 pounds fully assembled (46 pound tube, 38 pound base).
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SVBONY SV106 Guide Scope with Helical Focuser Finder and Guide Scope Multi-Use for Astronomical Telescope 50mm

  • 50mm Guide scope will help guide you to capturing higher quality astrophotos. with its 50mm lens and smooth helical focuser, the versatile 50mm multi-use guide scope with helical focuser is an ideal addition to any astrophotographers collection of gear.
  • Multi-use guide scope with helical focuser features a built-in helical focuser that allows precise focus adjustments with zero flexure for rigid performance. obtaining a clear, sharply focused view of potential guide stars is quick and easy with this sturdy scope.
  • High power guide scope features a machined, knurled ring to make fine focus adjustments nice and easy, while a thumbscrew lets you lock-down the focuser in-place once adjustments are complete. the focuser boasts 8 mm of precise helical focus travel, plus telescoping drawtube housing provides up to 30 mm of additional back-travel if needed for your particular autoguider device.
  • This complete guide scope comes with two heavy-duty guide scope rings and a 3.5" long, 1.18"wide dovetail mounting bar, which is compatible with dovetail finder scope bases for easy attachment. the dovetail bar features five threaded through-sockets for versatile attachment options. the included guide scope rings feature six metal thumbscrews for precise aiming.
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FOCUSER Electric Wireless Dog Fence System Pet Containment System for Dogs and Pets with Waterproof and Rechargeable Collar Receiver for one Dog Container Boundary System White

  • 【⭐WIRELESS BOUNDARY 】 Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receiver(s) Without Digging and Burying Wires With Focuser Wireless Dog Fence System. Focuser receiver collar Supports most sizes of dogs (10-110lbs, Neck: 8-21in)..
  • 【⭐Radius Up to 300m】Focuser Wireless Electric Containment System Will Create A Boundary With Adjustable Levels of 1-16. Radius 25-300 meters..
  • 【⭐Rechargeable and Waterproof Collar】 The Advanced Receiver Collar with High Capacity Built-In Durable Battery Which is Rechargeable. This Water-resistant Collar Receiver Is Rated IP67, Which Means Your Dog Can Get Wet in The Grass, Mess With The Sprinkler or Play in The Rain With this Electric Dog Fence System..
  • 【⭐ 4 Adjustable Correction Levels 】FOCUSER wireless dog fence is designed with 4 adjustable Level to Fit Various Sizes of Dog. You Can Simply Adjust the Levels According to Your Needs. No More Over-correction for small puppies and less-.
  • 【⭐ BUILT-IN SAFETY CHIP and Back up battery】The Built-In Safety Chip preventing the Over-Correction to Your Dog and the backup battery to prevent unexpected power outage during uses. FOCUSER wireless dog fence Provides You an Uninjurious W....
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FOCUSER Electric Wireless Dog Fence System, Pet Containment System for 2 Dogs and Pets with Waterproof and Rechargeable Collar Receiver for 2 Dog Container Boundary System (White)

  • 【⭐WIRELESS BOUNDARY 】 Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receiver(s) Without Digging and Burying Wires With Focuser Wireless Dog Fence System. Focuser receiver collar Supports most sizes of dog (10-110lbs, Neck: 8-21in)..
  • 【⭐Radius Up to 300m】Focuser Wireless Electric Containment System Will Create A Boundary With Adjustable Levels of 1-16. Radius 25-300 meters..
  • 【⭐Rechargeable and Waterproof Collar】 The Advanced Receiver Collar with High Capacity Built-In Durable Battery Which is Rechargeable. This Water-resistant Collar Receiver Is Rated IP67, Which Means Your Dog Can Get Wet in The Grass, Mess With The Sprinkler or Play in The Rain With this Electric Dog Fence System..
  • 【⭐4 Adjustable Correction Levels 】FOCUSER wireless dog fence is designed with 4 adjustable Level to Fit Various Sizes of Dog. You Can Simply Adjust the Levels According to Your Needs. No More Over-correction for small puppies and less-.
  • 【⭐BUILT-IN SAFETY CHIP and Back up battery】The Built-In Safety Chip preventing the Over-Correction to Your Dog and the backup battery to prevent unexpected power outage during uses. FOCUSER wireless dog fence Provides You an Uninjurious Way ....
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FOCUSER Electric Wireless Dog Fence System, Pet Containment System for 2 Dogs and Pets with Waterproof and Rechargeable Collar Receiver for 2 Dog Container Boundary System (White)

  • 【⭐WIRELESS BOUNDARY 】 Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receiver(s) Without Digging and Burying Wires With Focuser Wireless Dog Fence System. Focuser receiver collar Supports most sizes of dog (10-110lbs, Neck: 8-21in)..
  • 【⭐Radius Up to 300m】Focuser Wireless Electric Containment System Will Create A Boundary With Adjustable Levels of 1-16. Radius 25-300 meters..
  • 【⭐Rechargeable and Waterproof Collar】 The Advanced Receiver Collar with High Capacity Built-In Durable Battery Which is Rechargeable. This Water-resistant Collar Receiver Is Rated IP67, Which Means Your Dog Can Get Wet in The Grass, Mess With The Sprinkler or Play in The Rain With this Electric Dog Fence System..
  • 【⭐4 Adjustable Correction Levels 】FOCUSER wireless dog fence is designed with 4 adjustable Level to Fit Various Sizes of Dog. You Can Simply Adjust the Levels According to Your Needs. No More Over-correction for small puppies and less-.
  • 【⭐BUILT-IN SAFETY CHIP and Back up battery】The Built-In Safety Ch....
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FOCUSER Electric Wireless Dog Fence System, Pet Containment System for Dogs and Pets with Waterproof and Rechargeable Collar Receiver for one Dog Container Boundary System (White)

  • 【⭐WIRELESS BOUNDARY 】 Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receiver(s) Without Digging and Burying Wires With Focuser Wireless Dog Fence System. Focuser receiver collar Supports most sizes of dogs (10-110lbs, Neck: 8-21in)..
  • 【⭐Radius Up to 300m】Focuser Wireless Electric Containment System Will Create A Boundary With Adjustable Levels of 1-16. Radius 25-300 meters..
  • 【⭐Rechargeable and Waterproof Collar】 The Advanced Receiver Collar with High Capacity Built-In Durable Battery Which is Rechargeable. This Water-resistant Collar Receiver Is Rated IP67, Which Means Your Dog Can Get Wet in The Grass, Mess With The Sprinkler or Play in The Rain With this Electric Dog Fence System..
  • 【⭐ 4 Adjustable Correction Levels 】FOCUSER wireless dog fence is designed with 4 adjustable Level to Fit Various Sizes of Dog. You Can Simply Adjust the Levels According to Your Needs. No More Over-correction for small puppies and less-.
  • 【⭐ BUILT-IN SAFETY CHIP and Back up battery】The Built-In Safety Chip preventing the Over-Correction to Your Dog and the backup battery to prevent unexpected power outage during uses. FOCUSER wireless dog fence Provides You an Uninjurious W....
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FOCUSER Electric Wireless Dog Fence System, Pet Containment System for 2 Dogs and Pets with Waterproof and Rechargeable Collar Receiver for 2 Dog Container Boundary System (White)

  • 【⭐WIRELESS BOUNDARY 】 Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receiver(s) Without Digging and Burying Wires With Focuser Wireless Dog Fence System. Focuser receiver collar Supports most sizes of dog (10-110lbs, Neck: 8-21in)..
  • 【⭐Radius Up to 300m】Focuser Wireless Electric Containment System Will Create A Boundary With Adjustable Levels of 1-16. Radius 25-300 meters..
  • 【⭐Rechargeable and Waterproof Collar】 The Advanced Receiver Collar with High Capacity Built-In Durable Battery Which is Rechargeable. This Water-resistant Collar Receiver Is Rated IP67, Which Means Your Dog Can Get Wet in The Grass, Mess With The Sprinkler or Play in The Rain With this Electric Dog Fence System..
  • 【⭐ 4 Adjustable Correction Levels 】FOCUSER wireless dog fence is designed with 4 adjustable Level to Fit Various Sizes of Dog. You Can Simply Adjust the Levels According to Your Needs. No More Over-correction for small puppies and less-.
  • 【⭐ BUILT-IN SAFETY CHIP and Back up battery】The Built-In Safety Chip preventing the Over-Correction to Your Dog and the backup battery to prevent unexpected power outage during uses. FOCUSER wireless dog fence Provides You an Uninjurious Wa....
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SVBONY SV106 Guide Scope 60mm Multi-Use Finder Scope Guide Scope with Helical Focuser F4 for SG4 QHY5II ZWO SG4 CCD Astronomical Telescope

  • Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars.
  • will help guide you to capturing higher quality astrophotos.
  • an ideal addition to any astrophotographers collection of gear.
  • The helical focuser simply moves the attached device inwards or outwards while maintaining its orientation.
  • this convenient feature means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use.
  • For those nights when you don't plan to capture astrophotos exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed.
  • For example, inserting a 25 mm eyepiece creates a 9.6x60 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming.
  • The focuser boasts 8 mm of precise helical focus travel.
  • plus telescoping drawtube housing provides up to 35mm of additional back-travel if needed for your particular autoguider device.
  • a compression ring fitting keeps any inserted autoguider cameras or eyepieces free of pesky scratches.
  • The Multi-Use Guide Scope with Helical Focuser also features male T-threads on the focuser collar f....
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Celestron Motor for SCT and EdgeHD - Enables Electronic Focusing - Bring Celestial Objects into Sharp, Precise Focus, 94155-A

  • The Celestron focus motor for SCT and EdgeHD enables electronic focusing using a computer or Celestron Computerized mount hand controller for remote/hands-free observing.
  • Self-powering when connected to a Celestron Computerized mount the mount provides the power When connected directly to a computer USB provides the power.
  • Compatible with a wide variety of Celestron Schmidt-Cassegrain EdgeHD and Rowe-Ackermann Schmidt Astrograph optical tubes Check description for full list.
  • Motor controls include multiple speed rates automatic goto indexed Focuser position and Focuser backlash compensation.
  • Focuser Utility software for Windows provides a simple user interface Also compatible with Celestron PWI.
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Orion 60mm Multi-Use Guide Scope with Helical Focuser

  • Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars.
  • Designed for use with the Orion StarShoot AutoGuider and StarShoot AutoGuider Pro (both sold separately).
  • Helical focuser collar will not rotate attached autoguider devices during focus adjustments.
  • Can also be used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately).
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Orion 1.25-Inch Variable Universal Camera Adapter

  • Adjustable length adapter lets you attach a T-ring equipped DSLR or SLR camera directly to your telescope.
  • Useful for either prime-focus or eyepiece-projection astrophotography with refractors or reflector telescopes.
  • Slides into 1.25" telescope focuser or 2" focuser with step-down adapter.
  • has T-threads for attachment of camera body.
  • Allows you to vary the magnification without changing the inserted eyepiece when performing eyepiece projection astrophotography.
  • Requires T-ring to fit your brand of camera (T-rings sold separately).
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