iOptron 3302W SkyTracker Camera Mount - White Auto-tracking for smooth camera motion perfect for long-term exposures Includes AccuAligning dark-field illuminated polar scope New features include: increased payload of 7.7 lbs. and an adjustable AZ base for polar aligning. Attaches to virtually any camera tripod. Other features include: Cast-aluminum solid body, integrated compass, and geared latitude adjustment wedge for easy polar alignment