20 years ago is 2006. I'm pretty sure I had a digital camera (DSLR) around that time with enough resolution (10 megapixels, IIRC) for decent photos. Wikipedia notes that the Canon EOS 1D Mark III [1] was released in 2007 with 10MP.

According to wikipedia [2] the first consumer DSLR camera was in 2000.

[1] https://en.wikipedia.org/wiki/Canon_EOS-1D_Mark_III

[2] https://en.wikipedia.org/wiki/Digital_single-lens_reflex_cam...