Complex sentence: The Kodak DCS 300 series, comprising two cameras, the DCS 315 and DCS 330, were professional-level digital SLR cameras built by Eastman Kodak's Kodak Professional Imaging Solutions division.
Split into simpler sentences: The Kodak DCS 300 series comprised two cameras, the DCS 315 and DCS 330. They were professional-level digital SLR cameras built by Eastman Kodak's Kodak Professional Imaging Solutions division.