Telescope Extension Black Eyepiece Extender Adapter Optical Length 45mm for Astrophotography Applications 2" Tube, M48x0.75mm Thread, 2" (50mm)

Universal Compatibility: Features a front end with M48x0.75mm thread for use with 2-inch telescope eyepieces or astrophotography filters for a secure fit. Secure connection: Equipped with 2 fixing screws to support the connection of 2 inch telescope eyepiece and astrophotography filter, prevent damage to telescope accessories. Requires a longer focal length: Telescopes often require longer focal lengths when observing near the ground or when using field flatteners, corrective lenses, or reducer lenses. Functional Design: Extend focal length to extend focal length. May be required for focusing with certain eyepieces or telescope camera combinations. Rugged Construction: Anodized black finish prevents unwanted reflections. Made of solid aluminum alloy material, which has strength, durability and wear resistance. 1.Functional design: Extend focal length to extend focal length. May be required for focusing with certain eyepieces or telescope camera combinations. 2. Requires a longer focal length: When using a telescope for close-up observations on the ground or using field flatteners, corrector lenses, or reducer lenses, a longer focal length is often required. 3.Safe connection: Equipped with 2 fixing screws to support the connection of 2-inch telescope eyepiece and astrophotography filter to avoid damage to telescope accessories. 4.Universal Compatibility: Features a front end with M48x0.75mm thread for use with 2-inch telescope eyepieces or astrophotography filters for a secure fit. 5.Sturdy Construction: Anodized black finish prevents unwanted reflections. Made of solid aluminum alloy material, which has strength, durability and wear resistance. Specifications: Item Type: Eyepiece Extension Tube Material: Aluminum Alloy + Copper Interface Size: Approx. 2 inch /50.8 mm Thread size: M48x0.75 mm Color: Black Package list: 1 x extension tube