YGW
For full reccomendation, without the lengthy explanation of why, scroll down to bold italicized underlined text. (All at once, like this…)
Then read the rest for the explanation of why that is my reccomendation…
For the price range, and features, a starter DSLR set will cover your current needs, and be quick enough to (eventually) cover the real RR photography as well. (Most camera’s will have a tripod option.)
It would offer full aperture control, to maximize depth of field, while still giving a simple automatic focusing option, much like a traditional point and shoot. When aperture control is not 100% needed, fully automatic, just like a point and shoot, shutter speed priority, to allow setting of shutter speed, for time-lapse shots, or for fast snaps of action without blur, and all as simple, or complicated, as you need. All DSLR’s I have ever seen have a tripod mount. Starter sets @B&HPhoto start @399.99 and go up (way up!) from there.
Canon and Nikkon are the top two brands in DSLR, and offer the most additional options later on.
If you go with a DSLR, Canon offers clearer glass (lenses) than Nikkon. (Let the flame war start now…[}:)])
Once you get used to the slightly diffeerent controls as compared to a standard point and shoot, it will be second nature to pull out the camera, power it on, compose and snap the photo.
A mirror-less camera will offer most of the features of a DSLR, with a lighter weight than a traditional DSLR. This would also be a good choice based on depth of field needs, and your potential future needs, should they change. Starter sets for these can easily be under the $500 price range. Again, most are tripod capable.
Canon, Nikkon, and Sony all make excellent mirror-less models.