No, because the original author of a prop has copyright over the mesh, and that's all. I can't distribute the mesh without infringing their copyright. But my pictures are all mine. This has been discussed before, and I think the issue is clear. Anything else would be unworkable. It would be impossible to be a professional photographer if every time you took a photo you had to consult the owner of every building whether they consented. A Poser render is to the meshes what a photo is to its subjects. The only exception would be if a picture infringed a registered trademark. You can compare, if you like, the current lawsuit over picture of Zeta-Jones's wedding. The issue is invasion of privacy, not copyright of the photos.