They decide on a price before shooting. The price can include prints or not.

When I get sent X rays to photograph, I charge $50 plus my already established print price based on what size they want. I also put up a test page on my web site so they can approve it before I make the prints.

I'm not telling you to charge $50 to shoot, but know in advance what your costs vs. charges will be so you both are satisfied with the arrangement and the photography.

Wow, those X-Ray images are amazing. I'll bet you do an excellent business producing those for doctor's offices and such. Thanks for sending the link, Larry!

Thank you for the advice. I proposed a flat rate for the photography and a minimum number of images (low resolution) delivered on a CD for my client to peruse. Prints are extra, depending on what he wants. He accepted the proposal readily, calling it

Alan, I do not know what professions do here, but from time to time I do get people to let me shoot in their stores or someons porperty that has something I really like. I always offer to scan images to a CD and give them but I do keep the negatives. I find even though I do not do this for a living CDs are a good way to present your work to someone. If they want prints then I can charge according for that. I just did an book store. Here is a sample.