Certain exhibitions do not allow photography. If you see a sign saying no photos or videos, please respect the rules.
Photos and videos to be used for print, broadcast or any kind of publication or reproduction need permission from University Museums. Email email@example.com or call 515.294.3342. Also, see the Image Rights and Reproduction page. There is a form you can fill out there.
If there are no signs about photography, you may take photos for personal use only.