Description/Features: [Calibration Steps]To calibrate, aim the telescope at a daytime object using the low power eyepiece (20mm). Then, observe the same object through the starfinder's eyepiece. Without altering the position of the main telescope, adjust the starfinder's alignment screws on the bracket until the object is centered in the starfinder's crosshair. [Usage]The finder scope serves as a secondary scope to assist in locating celestial objects in the main telescope. It features 3 thumb screws for XY positioning and alignment. [5x24 Finder Scope for Astronomical Telescopes]This finder scope offers a 5x24 low power magnification, ideal for initially locating objects to be observed with a more powerful main telescope. It is fixed to the body of the main telescope and aligned in the same direction. [Easy to Install]The finder scope comes with a mounting bracket that fits any telescope optical tubes. The bracket has a curved base with two holes for attachment using bolts or screws. It is designed to ensure stability and will not slide into a dovetail base. [Professional Accessories]This universal 5x24 Finder Scope with Mounting Bracket is an essential optical finder for initial positioning in astronomy. Color: As Shown Material: Plastic+Glass Package Contents: 1*Finder Scope Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.