1pc M42x0.75 Focal Length Extension Tube Kits 3/5/7/10/12/15/20/30/40/50mm for Astronomical Photography for T Extending(Extend 30mm)

Description

• Name : Astronomical Telescope T2 Extension Ring
• Material : Aluminium Alloy
• Feature : Both Side Male Thread
• Internal Thread : M42 x 0.75mm
• External Thread : M42 x 0.75mm

M42x0.75 Focal Length Extension Tube Kits 3/5/7/10/12/15/20/30/40/50mm For Astronomical Photography for T Extending
Feature
1. Aluminum alloy material, precision technology, sturdy and durable, corrosion resistant.
2. Convenient to install, flexible to use, compact and portable.
3. Inner side with extinction treatment to avoid radiating light affecting image.
4. Professional manufacturing, stable characteristics and high reliability.
5. Fine workmanship, practical astronomical telescope accessory.
Parameter:
1.Item Name: Adapter Ring
2.Material: aluminum
3.Color: black
4.Internal Thread: M42 x 0.75mm
5.External Thread: M42 x 0.75mm
6.Height: 3mm, 5mm, 7mm, 10mm, 12mm, 15mm, 20mm, 30mm,40mm,50mm.
7.Application: Extension tube for telescope photography
Packing list:
1pc x adapter ring

==========

Name : Astronomical Telescope T2 Extension Ring
Material : Aluminium Alloy
Feature : Both Side Male Thread
Internal Thread : M42 x 0.75mm
External Thread : M42 x 0.75mm

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