The SinoGNSS E300 with the C50 camera option uses the same RTK/PPK-equipped mapping airframe as the base E300, but is fitted with ComNav's higher-specification C50 payload for more demanding aerial capture such as detailed 3D modeling, mining surveys, or emergency-response imaging. It keeps the platform's centimeter-level direct georeferencing, multi-constellation GNSS tracking, and roughly 50-60 minute flight endurance, with the upgraded camera aimed at higher-resolution or more specialized imagery than the standard C20 kit.