New 2 inch 2" double Helical focuser 0.02mm scale for telescope guider Precision                                 

Product Feature:

2-inch high-precision double helix focuser for telescope/guider

Material: Aluminum 

Focus Exercise: double push-way mobile,

inner sleeve force is smallest

The optical diameter：45mm

Full frame size

Focusing accuracy: 0.02 MM

Front interface male thread is M48X0.75

rear interfaces female thread is M48x0.75

Focusing stroke: 40MM

the shortest distance focus: 50MM

the longest distance focus; 90MM

item  Weight: 230 g

Load weight: 2KG

Package:

One  2" double Helical focuser

One 2"-M48x0.75 adapter