iOptron HST MiniTracker Ultra-Compact SWG DSLR Tracker (3650) M82 and the back focus is

and the back focus is the standard 55mm

Quick focus allows for fast action to bring your subject in to detail in just a few smooth revolutions

Building on the legacy of earlier GEM models we have added features for convenience and functionality

How to Use

4mm (11") Focal Length: 2800mm (110") Focal Ratio: f/10 Focal Length of Eyepiece 1: 23mm (0

iOptron HST MiniTracker Ultra-Compact SWG DSLR Tracker (3650) M82 and the back focus isIntroducing The HST MiniTracker iOptrons next generation ultra compact SWG camera tracking device! Small enough to rest in your palm, yet can carry up to 9lbs of imaging gear. The iOptron HST MiniTracker is the ultimate portable DSLR sky tracking device. Weighing only 1. 75lbs this SWG (strain wave gear) mini imaging tool features 4 tracking rates, sidereal for stars and deep space, lunar for the moon, solar for the sun, and rate for imaging the Milky