http://library.lp.findlaw.com/articles/file/00054/006920/title/subject/topic/intellectual%20property%20law_copyright/filename/intellectualpropertylaw_1_233
Read the entire article, but here's the important parts:
"under the federal Copyright Act the photographer owns the
copyrights in the photographs and thus controls how they may be
used. Copyright law is slanted in favor of the creator of the work
and vests him or her with the copyright. Copyright ownership stays
with the creator of the work unless the creator assigns the
copyright in writing to someone else"
"There are only two exceptions to the rule that the creator of a
work owns the copyright in it. First, if an employee (as opposed to
an independent contractor) creates a work within the scope of his
or her employment, then the employer, not the employee, owns the
copyright in the work. This is known as a work for hire"
"The second exception to the rule that the creator owns the
copyright applies when an independent contractor agrees, in
writing, before the work is created, that the work will be a work
for hire owned by the hiring party"
Any questions?