These two products are part of the bigger Kaltura Capture vision and are complementary to each other.
Kaltura Capture was designed with personal capture in mind. It is optimized for installation on personal computers, both Mac and PC. Kaltura Capture is aimed at supporting integrated and USB cameras and will work on any personal computer.
Lecture Capture is designed for the classroom experience, where more high-end equipment is used, such as PTZ cameras. It is focused on providing a seamless experience in the classroom, especially for automated workflows like scheduled recordings. It is designed with support for campus-wide deployment in mind, with fail-proof workflows for scheduled recordings and shared workstations.