What two companies sold the first consumer-oriented digital cameras?

Taking the APS-C "multiplier effect" into consideration; to get the same field-0f-view of a 21mm lens on a full-frame camera would require what focal-length on an APS-C DSLR?

What does CMOS stand for?

A 12-bit image file has...

ISO stands for...

Standard JPG or JPEG image files are...

What does the term "prime lens" mean?

Which lens has shallowest depth of field (DOF)?

The practice of making several varied exposures of the same scene is called

The ISO setting on digital cameras refers to what for film cameras?

Why would you use an ND filter?