Camera for "Fairly lightweight" backpacking
Anyone interested in photography when backpacking has probably gone through some kind of evolution, and may have ended up with a cell phone camera, or a big heavy DSLR. My path took a third route, and ended up with a Sony a6000 camera, solar panel, storage battery, light tripod, and cable.
The camera came with a 18-50 mm lens, which they call the kit lens. The cost was $550 for the camera body and kit lens. I've bought other lenses since then which form my go-to camera kit. A Sony 10-18 mm lens for landscapes cost $800, and thank God was not ruined when I went swimming with my camera around my neck. A Sony 35 mm prime is perfect for portraits and general shots and macros, and cost $250. The a6000 has a pretty significant sensor (APS-C) way bigger than a cell phone sensor, and a bit smaller than a full frame camera. Features include 11 frames per second, fast auto-focus, all kinds of modes, manual focus and aids for manual focus, time lapse, ability to download apps from the internet, and many more.
My solar panel is a Suntastics 5, and charges a 10,000 mAh battery when the sun is out. The cable has 3 end fittings, of which one is for iphone, and one is for the camera, and a similar battery/panel kept the a6000 and a cell phone charged for 22 days without wall current, using one battery. The tripod is a Gorillapod, and is strong enough to hold up the camera with the Sony 10-18 mm lens. Below is a shot with the Sony 10-18 mm lens, Gary on the Teton Crest Trail.
Picture below with the Sony 35 mm prime lens, of daughter Ciera Shaver:
Weights are these:
Camera body with strap and rubber cover: 14.25 oz
Sony 35 mm f1.8 lens 6 1/8 oz
Sony 10-88 mm f4 lens, 10 oz
storage battery: 8.75 oz
GorillaPod: 7 oz
Suntastics sCharger-5: 5.5 oz
Cable: 2.5 oz
Total 3 lb 2 oz
Some people judge focus based on detail when magnified, and here is the right eye from the photo above. Good enough detail.