Astronomical Telescope Accessories, SV181 1.25 Inch Rack and Pinion Focuser Full Metal Fully Threaded Reflector with Dust Coverfor Telescope,for Replacing Telescope Accessories

Features:1.Full metal with 1.25 inch dust cover2.Adjust the Focal length by the gear, and fine tuning more accuracy3.Internal brass ring that the set screw hits to hold your 1.25" eyepiece inside for eliminates marks on your eyepiece barrel4.the inside of the item fully threaded to minimize reflections==========High-concerned chemical : NoneModel Number : SV181Product Type : OtherObjective Lens Diameter : 114 MillimetersTelescope Mount : 1.25 inches mount

• Universal mounting base allows direct replacement of original focusers without tube modification. Includes screws and wrench for easy installation.
• Model SV181 adopts 1.25 inch rack and pinion focuser structure, suitable for assembly with reflector astronomical telescopes.
• Made of full metal material with fully threaded interface design, facilitating stable connection with astronomical observation equipment.
• Rack and pinion transmission provides smooth adjustment experience to meet focal length adjustment needs during observation.
• Equipped with a dust cover, which can protect the focusing structure and reduce contact with external debris when not in use.
• Specifications fit the installation requirements of reflector telescopes and can be used with main equipment as a conventional focusing accessory.
• Precision rack-and-pinion drive mechanism, smooth focus travel with no backlash, supporting both fine and coarse focusing modes for precise focus needs in visual observation and astrophotography.