I'm looking for a low-cost digital camera that can feed images directly into a PC. By low-cost I mean in the $100-$200 range. This is needed because I'm going to write some software that lets the user interactively tag the image as he clicks it.
CHDK 1.2 added support for saving images directly over USB, without saving on the SD card.
This is supported for RAW and DNG on all cameras, and for JPEG on some cameras.
Is there any such software or SDK for Sony, Nikon, or any other camera brand that let you takes images straight into a PC? This is also known as "remote capture" in some guides.