Leon --
Not per se, but most otf the standard cameras have two optical sizes. I consider the standard size to be wide-angle and the telephoto to be close-up. My camera has a third size, the 3x enlargement, but that's computer generated and not optical, so the resolution is a tad muddy.
That is about what it amounts too, too I'm now using a Kodak DX3600. Very good and inexpensive. Bought it used for $240 from Kodak's own website, then added a dock.
About file sizes to Clients: At the lower-resolution, color photos we're talking about, I'll bet you some Clients are printing the photos in black and white.
For my hard copy, I print black and white on the laser printer. They are far superior to the color photos in gradation.