Diyeeni Double Helical Focuser, 1.25 Inch Spiral Focuser, Helical Fine Tuning Focuser with 10 mm Focusing Stroke, Accessories for Astronomical Telescope

Made of high quality aluminium alloy material, high strength, corrosion resistant, sturdy and durable. Lightweight and compact size, easy to carry and use. High precision double helix focuser for Guider Scope / Finder Scope Interface. The solution for slow focusing telescopes or telephoto lenses. Wonderful accessory for astronomical telescope.; Product description Function: 1. Made of high quality aluminium alloy material, high strength, corrosion resistant, sturdy and durable. 2. Lightweight and compact size, easy to carry and use. 3. High precision double helix focuser for guider scope/finder scope interface. 4. The solution for slow focusing telescopes or telephoto lenses. 5. Wonderful accessory for astronomical telescope. Specification: Item type: double helical focuser. Condition: 100% Brand New Material: aluminium alloy. Weight: approx. 120 g. Color: As shown in the picture. Focusing line: approx. 10mm Accuracy of focusing: approx. 0.05 mm. Interface: 1.25 inches, internal thread M42 x 0.75 mm. 1.25 inch spiral focuser, 10 mm focusing stroke, lightweight. During focusing, the inserted eyepiece or zenith etc. does not retain rotation and only moves linearly, which is conducive to observation and recording. Package list: 1 x Helical Focuser.; Product description Function: 1. Made of high quality aluminium alloy material, high strength, corrosion resistant, sturdy and durable. 2. Lightweight and compact size, easy to carry and use. 3. High precision double helix focuser for guider scope/finder scope interface. 4. The solution for slow focusing telescopes or telephoto lenses. 5. Wonderful accessory for astronomical telescope. Specification: Item type: double helical focuser. Condition: 100% Brand New Material: aluminium alloy. Weight: approx. 120 g. Color: As shown in the picture. Focusing line: approx. 10mm Accuracy of focusing: approx. 0.05 mm. Interface: 1.25 inches, internal thread M42 x 0.75 mm. 1.25 inch spiral focuser, 10 mm focusing stroke, lightweight. During focusing, the inserted eyepiece or zenith etc. does not retain rotation and only moves linearly, which is conducive to observation and recording. Package list: 1 x Helical Focuser.; Function: 1. Made of high quality aluminium alloy material, high strength, corrosion resistant, sturdy and durable. 2. Lightweight and compact size, easy to carry and use. 3. High precision double helix focuser for guider scope/finder scope interface. 4. The solution for slow focusing telescopes or telephoto lenses. 5. Wonderful accessory for astronomical telescope. Specification: Item type: double helical focuser. Condition: 100% Brand New Material: aluminium alloy. Weight: approx. 120 g. Color: As shown in the picture. Focusing line: approx. 10mm Accuracy of focusing: approx. 0.05 mm. Interface: 1.25 inches, internal thread M42 x 0.75 mm. 1.25 inch spiral focuser, 10 mm focusing stroke, lightweight. During focusing, the inserted eyepiece or zenith etc. does not retain rotation and only moves linearly, which is conducive to observation and recording. Package list: 1 x Helical Focuser.

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