Unlimited usage rights is the functionally the same as signing over
copyright. You compete with Nat'l Geo to license your image to other
users.
Nat'l Geo liecenses its own images as stock, just like the lone
photographer. Who do you think the client is going to go to when
they see a pic in a Nat'l Geo and decide they want to use it?
Not the photographer.
Unlimited usage is just that - they can use it any way they like as
many times as they please.
--
Emily L. Ferguson
mailto:elf@xxxxxxxx
508-563-6822
New England landscapes, wooden boats and races, press photography
http://www.vsu.cape.com/~elf/
