High precision double helix focusing seat with digital standard/planetary photography and deep space photography/with 2-inch interface

Main mirror interface: 2-inch, with M48 filter ring inside
CCD end, with 1.25-inch and M42 interface
Weight: 50 grams
Shortest distance: 55mm
Longest distance: 65MM
The two inch extension bucket can eliminate the need for planetary photography and has been replaced with a focusing range of 55MM