My move to Oklahoma has given me the opportunity to do a lot more hiking but a lot of that hiking is in pursuit of something other than good photos. Even though I am adding to my lens inventory and doing some very serious shopping for a Nikon D700 full frame body I also bought a smaller and lighter DSLR body to take on my "non photography" hikes.
This photo was taken with a Nikon D3000 with a Nikon 18-135mm lens. The camera set up is a couple of pounds lighter than my D80 with battery grip and 18-250mm lens and several pounds lighter than the D80 with the Sigma 150-500mm. My backpack is usually weighing in between 25 and 40 pounds depending on the season and that's before I add the camera. With all of the stuff I carry when I'm hiking, even a few ounces makes a big difference so I decided to drop to the lightest DSLR I could find.
The options on the camera are definitely different and it doesn't shoot as fast as the D80 or buffer the shots anywhere near the speed of the D80 but it seems to take nice photos. All in all I think it will be a nice camera for hiking and I will always revert back to the D80 when I want to take some "serious" photos.