Apart from the arrival of less pricey full-frame digital SLRs, the other recent development that has impressed your correspondent is the way imaging chips are migrating from CCD (charge-coupled device) technology to CMOS (complementary metal-oxide semiconductor), used widely in the computer industry.

ECONOMIST: A die-hard analog photographer goes digital

The watch contains a 25, 000-pixel complementary metal oxide semiconductor sensor and 1 megabyte of memory, which can store up to 80 images at a time.

FORBES: Magazine Article

Traditional cameras use either charge-coupled devices (CCDs) or complementary metal oxide semiconductor (CMOS) chips, which capture images on a grid of millions of pixels.

FORBES: Magazine Article