Specification Brand : Wisoqu BulletPoint1 : Functional Design: Provides extra focusing distance to increase length extension. Sometimes necessary for certain eyepiece or telescope camera combinations for focusing. BulletPoint2 : Extended Focusing Needed: Often requires more focusing distance when observing short distances on the ground with a telescope or using field flatteners, correctors, or reducer lenses. BulletPoint3 : Secure Connection: Equipped with 2 fixed screws to support connecting 2 inch telescope eyepieces and astrophotography filters, preventing damage to telescope accessories. BulletPoint4 : Universal Compatibility: Features front end with M48x0.75mm thread for use with 2 inch telescope eyepieces and astrophotography filters, ensuring a secure fit. BulletPoint5 : Sturdy Construction: Anodized black finish prevents unnecessary reflections. Made of solid aluminum alloy material for strength, durability, and wear . Finderscope : Telescope Phone Mount FocusType : Manual Focus IncludedComponents : Phone Mount ItemName : 2in Telescope Extension Tube, Black Eyepiece Extender Adapter M48x0.75mm Threads, 2inch Optical Length 45mm, for Astrophotographic Applications (60mm) ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : telescope-photo-adapters MagnificationMaximum : 20 Manufacturer : Wisoqu MinFocalLength : 150 ModelName : Genericdfpogszq9c ModelNumber : Wisoqu1fu3o5cagz-13 NumberOfItems : 1 PartNumber : Wisoqu1fu3o5cagz-13 ProductDescription : 1. Functional Design: Provides extra focusing distance to increase length extension. Sometimes necessary for certain eyepiece or telescope camera combinations for focusing. 2. Extended Focusing Needed: Often requires more focusing distance when observing short distances on the ground with a telescope or using field flatteners, correctors, or reducer lenses. 3. Secure Connection: Equipped with 2 fixed screws to support connecting 2 inch telescope eyepieces and astrophotography filters, preventing damage to telescope accessories. 4. Universal Compatibility: Features front end with M48x0.75mm thread for use with 2 inch telescope eyepieces and astrophotography filters, ensuring a secure fit. 5. Sturdy Construction: Anodized black finish prevents unnecessary reflections. Made of solid aluminum alloy material for strength, durability, and wear .