I don't understand the question. Everyone of the cited lenses is AF. They are all available in the native mount. As to cost of lenses, it really depends on what coverage one wants, what aperture is desired and whether zooms are allowed: what do you mean by "coverage of focal lengths"?. As to cost of bodies, a second hand Olympus EP-1 or NEX 3 is really cheap...
(Since you are in the USA, and because prices are a bit different depending on country, I checked on amazon.com: you can get an Olympus EP-1 or NEX 3 body for 190$ today).
Hi Jerome,
Let me clarify my question. I really like the new batch of compact cameras. The Canon and Nikon DSLR's are so heavy to lug around all day. My experience is limited to just two brands, Ricoh and Sony so I was wondering, overall, which brand offers a good range of prime AF lenses without breaking the bank, preferably APS C sized sensor.
Ricoh: I love the Ricoh GXR, solidly built, with it's 50 mm f 2.5 Macro lens and enclosed sensor unit. The pictures are on a par with full frame camera for most intents. However, the range of primes is limited to that 50 mm and a 28mm APS C units. Zooms are wonderful but have tiny sensors. One can use the M-mount adapter and leverage Leica lenses one owns, but then the focus is manual.
Sony: My experience with the Sony NEX 5N was a quick wonderful romance. The 18-55 zoom, (x1.5) was all I had but it was really practical for a New York "guerilla" shoot. The f 2.0 28mm Zeiss lens offered was just too expensive and has no image stabilization. The 16 mm, f 2.8, (equivalent to 24mm), was not in stock and that's the line up; rather limited! Of course, they have the 2X adapter and ultrawide and fisheye convertors, but these aren't primes. One can use the large heavy prime lenses from the Sony alpha DSLR with an adapter, but hardly practical for a compact system.
So I'm looking out for a fine system with compact AF lenses covering the 35mm equivalent focal lengths of 14-16mm to 120 mm at least.
Asher