Aluminum Extension Tube Kits M42x0.75 3mm/5mm/7mm/10mm/12mm/15mm/20mm/30mm/40mm for Camera Eyepieces Photography T Ring

Features: Easy to use. M42x0.75mm male and female thread. Include 3/5/7/10/12/15/20/30/40mm, meet your different need. Fully metal construction and anodizing aluminum process, durable in use. Solving spacing problems in astrophotography and eliminates a range of focusing problems.

Specifications: Material: Aluminum Alloy Male Thread: M42x0.75mm Female Thread: M42x0.75mm

Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

Package includes: 1 Set Extension Tube