Casio's 2005 5MP compact — 3x zoom and a then-huge 2.7-inch LCD in place of any viewfinder.
The Casio Exilim EX-Z57 was a 5-megapixel compact announced in February 2005 alongside the higher-end EX-Z750. Its selling point was Casio's biggest screen to that date, a 2.7-inch LCD that filled the back of the camera and replaced the optical viewfinder entirely, an approach that soon became standard across the industry.
The camera combined a 5-megapixel sensor with a 3x optical zoom lens and that large 2.7-inch LCD for framing and playback. Power came from Casio's NP-40 rechargeable lithium-ion battery, rated for around 400 shots per charge, and the camera shipped with an AC-adapter cradle used both for recharging and for showing stills and movies on a television. Storage used SD or MMC cards alongside a small internal memory.
As a used camera it suits buyers wanting a simple, screen-led snapshot compact from the mid-2000s, including those collecting early big-LCD designs. The all-auto operation makes it friendly for beginners, while the 5MP CCD output has the punchy small-sensor character now sought by Y2K digicam enthusiasts.
The NP-40 battery family remained in use across many Casio models, so replacements are still obtainable; confirm a charging option is included because the original cradle is often missing, and third-party chargers may be needed. Check the large LCD carefully for scratches and dead pixels since there is no viewfinder, and test the zoom and flash. SD cards remain easy to source.