Top 10 Best Focuser

WIRELESS BOUNDARY Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receivers 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 300mFocuser 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 batteryThe 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 to have Your Dog Stay Within the Yard..

WIRELESS BOUNDARY Creating a Dog Park and Keeping your Dogs Safely Contained in Your Yard By Simply Plugging In Transmitter and Pairing To Receivers 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 300mFocuser 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 batteryThe 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 to have Your Dog Stay Within the Yard..

Smooth SV181 Rack and Pinion Focuser for reflector telescopes accepts 1.25inches eyepieces. The gear can be fine tuning You can adjust the focal length by the gear Focuser Travel is 65mm and fine tuning more accuracy. Brass ring design Internal brass ring that the set screw hits to hold your 1.25inches eyepiece inside for eliminates marks on your eyepiece barrel. Internal matting design the inside of the item fully threaded to minimize reflections. Come with 1.25 inch dust cover It can protect your equipment from dust Thereby extending the service life of the equipment.

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, 1.18wide 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. The quick guide scope with helical focuser also features male t-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female t-threads.

Reflection telescope universal focuser adapter apply to accessories with M42x0.75 male thread and accepts 1.25 eyepieces. Features three locking thumbscrews, any inserted 1.25 astronomical accessory can be secured. All metal construction and anodizing aluminium process, durable for long time use. Reflection telescope universal focuser adapter easy to use. Turn three screws to fine-tune the eyepiece center to align with the objective.

Professional designYZ-18839 aluminium alloy 10mm focusing stroke 1.25 inch helical fine tuning 0.05mm high precision focuser.0.05mm high precision focusing, with 10mm focusing stroke.. Strong and sturdyMade of high quality aluminium alloy material, sturdy and durable, better hand feeling.. Lightweight and convenientLightweight and compact, easy to carry and store, convenient to use.. 100 Satisfied Customer GuaranteeWe offer a 60-day refund, a 12-month warranty, and a lifetime friendly customer service.. Cost-effectiveProfessional manufacturing, stable characteristics and high reliability..

YZ-18839 aluminium alloy 10mm focusing stroke 1.25 inch helical fine tuning 0.05mm high precision focuser.. Made of high quality aluminium alloy material, sturdy and durable, better hand feeling.. Lightweight and compact, easy to carry and store, convenient to use.. 0.05mm high precision focusing, with 10mm focusing stroke.. Professional manufacturing, stable characteristics and high reliability..

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 astrophotosan ideal addition to any astrophotographers collection of gear. The helical focuser simply moves the attached device inwards or outwards while maintaining its orientationthis 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 installedFor 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 travelplus telescoping drawtube housing provides up to 35mm of additional back-travel if needed for your particular autoguider deviceNo extension tubes necessary 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 for secure threaded attachment of guide cameras equipped with female T-threads.

High Precision double helical focuser for guider scope finder scope Interface. The solution for telescopes or telephoto lenses with sluggish focusing. The Focuser has a fixed orientation - so there is no rotation of mounted cameras or eyepieces - or also the field of view with your guide star - when focusing.. Upgrade your RP focuser by adding it to the end of the RP focuser by using Astromania M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm. Note please make sure that there is M42X0.75 male thread on your RP focuser.. Item was made by Full metal, durable. The one side of double helical focuser is M31X0.5 male thread including a M31X0.5 female thread to M420.75 male thread Adapter which you can get M31X0.5 male thread or M42X0.75 male thread on this side, there are 1.25 accessory collar with male T-thread flange M42x0.75 and Accesory collar thumbscrews on the other side that you can install StarShoot AutoGuider or 1.25 eyepiece.. Interface 1.25 inch with M420.75 male thread, primary Mirror Interfaces M31X0.5M42X0.75. Accuracy 0.05mm Focusing stroke 10mm Minimum length 46mm Longest length 56mm..