Originally posted by maltfalc why? what does the model being paid in photos rather than cash have to do with what the photographer does with the photos afterwards? why should models "be careful" when a photographer plans to sell photos he has every right to sell?
Well, it's everyone's right to charge according to circumstances, Maltfalc.
In a traditional TFP arrangement, no one's getting paid, you're both portfolio building:
Time for print - Wikipedia
When somebody is making money directly from the shots, written contracts contain the signed agreements of expectations and limits of both parties.
A model or photographer are entirely in their rights to offer their services gratis to a charity, for instance, but not a local newspaper.
In the case of a model, once a shoot is commercial in nature rather than an art project, they maybe required by their agency for a minimum fee.
I think anyone who goes into, say, wedding photography, without a properly written up contract is nuts!