Our daughters sound eerily similar. My daughter is more a straight math geek than a science kid, did a bit better on her sophomore PSAT than your daughter, marching band instead of orchestra, and her interest is theater rather than photography. But probably pretty similar kids.
The tack my wife and I have taken is that we will provide the same level of support for undergraduate work regardless of major. However, we want two things. One, pick a major/double major that will provide a relatively stable “fall back” and two, look for schools where she can graduate debt free or very close to it so that she will have some time to pursue theater as a career with as minimal a financial burden as possible. Maybe a similar plan would work for a budding photographer?
As far as college visits, we took one trip this summer with her specifically to try and give her some context of what is out there. We visited a larger school (Yale), a smaller school in a city (Fordham) a smaller school in the middle of nowhere (Bucknell) and a really small artsy school (Vassar). That trip really helped her get some context on what she liked/disliked and has helped us to start to build a “possibles” list. I would recommend something similar if at all possible