1、Mini Guide Telescope: Compact telescope with 130mm focal length and 30mm aperture, compatible with astronomy cameras for observing star clusters, moon, planets, and other celestial bodies. 2、Easy Focal Adjustment: Equipped with a locking screw front thread focusing design, simplifying the focusing mechanism without sacrificing accuracy. The front focusing ring is marked with numbers for easy focus position memory. Can be permanently locked with a short screw for convenience. 3、Incisive Image Quality: Features a C mount interface and broadband anti reflective coating lenses for incisive imaging quality and improved guiding accuracy. Focus range from infinite to 1.5 meters with a focal ratio of 1:4.3. 4、Use Details: Made of aluminum alloy and optical glass, with a 30mm aperture and 130mm focal length. Features a C mount interface, broadband anti reflective coating lenses. 5、Fine Workmanship: Constructed with a durable black anodized aluminum alloy shell, lightweight to reduce asynchronous deformation. Fine craftsmanship for quick, simple, and comfortable operation. Item Type: Mini Guide Scope Material: Aluminum Alloy, Optical Glass Aperture: Approx. 30mm / 1.18in Focal Length: Approx. 130mm / 5.12in Distance Measurement Range: From infinite to Approx. 1.5m / 4.92ft Focal Ratio: 1:4.3 1 x Mini Guide Scope 1 x Bracket 1 x Storage Box