2005 is about as late as you can go before the processors in cameras started being powerful enough to do a lot of stuff to the images. Most of my collection is very early 2000s or even late 90s. The Sony Cyber-shot DSC-F717 is a great cam from 2002 that was Sony's flagship at the time. Despite having cool features that modern cams don't (nightshot which also allows for easy IR photography, a swiveling lens assembly), the pictures have that "filmic" look thanks to the CCD sensor and little to no denoising done in-camera. It was also high resolution enough for the time (5MP) that the pictures still look reasonably detailed and sharp. Super early digicams often had like 1MP sensors that produce quite fuzzy images (though I feel that has its own appeal)