iOptron HST MiniTracker Introducing the HST MiniTracker, iOptron’s next-generation ultra-compact SWG camera tracker! Small enough to rest in your palm yet capable of carrying up to 9 lbs of imaging gear, the iOptron HST MiniTracker is the ultimate portable DSLR sky-tracking device. Weighing only 1.75 lbs, this SWG (strain wave gear) mini imaging tool features four tracking rates: sidereal for stars and deep space, lunar for the Moon, solar for the Sun, and ½-rate for capturing the Milky Way with terrestrial foregrounds. Its DC stepper motor and SWG drive train operate in near silence while precisely tracking your target. The CNC-machined metal body is both attractive and rugged, ready for any outdoor adventure. The HST features a Vixen-style dovetail that slides into the optional AZ base or can mount directly to a tripod using 3/8"-16 or 1/4"-20 posts. It is powered by an internal rechargeable Li-Poly battery, three AAA batteries, or an external 5V power bank, giving users flexible power options. A side bracket supports an optional AccuAlign™ polar scope or iPolar and includes a “peek hole” for basic alignment. The HST MiniTracker is the ideal tracking solution for imagers on the go! Features All-metal CNC structure Powerful stepper motor Supports cameras up to 4 kg (8.8 lbs) without a counterweight Lightweight: 1.75 lbs (with battery) Silent tracking for smooth, long-exposure imaging 4 tracking speeds: 1× (sidereal) for stars and sky ½× for sky-and-landscape compositions Solar Lunar Quick-slew mode for framing adjustments Operates in both Northern and Southern hemispheres Built-in rechargeable battery with USB-C port for power and charging Attaches to camera tripods with 3/8” or 1/4” threads Package Contents HST MiniTracker camera mount Li-Poly rechargeable battery (installed) Brass 3/8” and 1/4” threaded ball-head mounting post (installed) USB-C charging cable One-year limited warranty (90 days on battery) Optional Accessories #3327 Adjustable AZ/EQ Base #3328 Precision AZ/EQ Base #3330-HST AccuAlign™ dark-field illuminated polar scope with LED #3339 iPolar electronic polar scope #3350A Ball Head #3221 Tripod Technical Specifications Mount Ultra Compact SWG Single-axis Tracking mount Gear system Strain wave gear (SWG) Payload (MAX) 4kg (8.8 lbs), no CW required Mount weight 790 gm with battery (1.75 lbs) Drive motor Stepper motor Tracking speed Solar, Lunar. 1X Cel, 1/2 Cel, and N/S Power requirement Internal battery or DC5V Power Internal Li-Poly battery, external 5V power bank Battery Standard 3000mAh rechargeable, optional 3XAAA battery holder Duration of operation1 Up to 5 hours at 20°C on Li-Poly battery Power charging port USB Type-C 5V Body material CNC All metal Body dimension 133x93.25x71.5 mm Camera mounting block Ø50 mm w/ 3/8”-16 post Body-base connection Vixen type dovetail bar with 3/8”-16 socket and 1/4”-20 converter Polar scope Optional iPolar or AccuAlignTM Polar Scope EQ Base Optional #3327 or #3328 Operation temperature -10~40ºC Warranty One year limited (90 day on battery) In the Box HST MiniTracker camera mount Li-Poly rechargeable battery (installed) Brass 3/8” and 1/4” threaded ball-head mounting post (installed) USB-C charging cable Optional AZ-EQ Base (standard or precision) Optional polarscope (standard or iPolar) Warranty iOptron One Year Warranty