Vivitar's slim budget digicam — 3.0MP CMOS, focus-free, 8x digital zoom, optical finder, SD/MMC, 3x AA
The Vivitar ViviCam 3720 was a low-cost 3-megapixel digital compact from the ViviCam range of the mid-2000s. Like its stablemates it was a badge-engineered budget digicam aimed at first-time buyers and sold through mass-market retail, positioned a step above the very cheapest keychain-style cameras thanks to its slim metal-fronted housing.
It carried a 3.0-megapixel CMOS sensor behind a focus-free lens with a minimum focus distance of about 1.5m, automatic exposure and white balance, and an 8x digital zoom. Framing was via a real-image optical viewfinder or the 1.5-inch LCD. Stills were saved as JPEG up to 2304x1728 (interpolated) and video as AVI up to 320x240, with a webcam mode over USB. It had 16MB of internal memory, an SD/MMC slot, a built-in flash and ran on three AA batteries, weighing about 82g without them.
Handling is basic: no focus control, slow shot-to-shot times and a small dim screen. It suits buyers after a cheap working example of the early-digicam look, or a pocketable curiosity, rather than anyone needing dependable image quality. The optical viewfinder is a small practical plus over screen-only rivals of the same class.
Used examples are plentiful and cheap. AA power makes it easy to test on the spot; check the battery compartment for leak damage, confirm it recognises a small-capacity SD card, and check the flash charges. The AVI/webcam functions relied on old Windows driver software, so treat those features as unsupported on modern systems.