2pcs M42x0.75 Length Extension Tube Kits 3 5 7 10 12 15 20 30mm for Astronomical Telescope T Extending Ring(30mm)

Description

• Metal construction and anodizing process, durable for long time use.
• The extension tube has a T2 interior thread and a T2 exterior thread for solving spacing problems in astrophotography and eliminates a range of problems.

Extended: 20mm

Material: aluminum

Internal thread specification: M42*0.75mm

Specification of external thread: M42*0.75mm

Appearance color: black

Total length: 24mm

Net weight: 16 g

Package include:

2pcs X Telescope Photography M42*0.75 Extension Tube

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