Section 13(2) of the Canadian Copyright Act states that the copyright owner is the one who commissions and pays for the ìengraving, photograph or portrait. In other words, provided a client or buyer commissions the production of a photograph and pays for such a work, the client/buyer automatically holds the copyright on the photograph and/or ìengraving - not the photographer or person who created the ìengraving - unless the buyer and photographer/creator have an agreement to the contrary. The Copyright Act applies this provision to a ìportrait or ìother original created on a commission basis, but doesn't specifically define what types of commissioned illustrations this includes..
The person who paid to have the pictures done is the copyright owner unless the photographer and buyer have an agreement stating otherwise.
You have to look at legal cases though. I am not sure on Canadian Law, but in U.S. Law, there is criteria to determine what is "work for hire" and what is not. Depending on whether the person is an employee, or an independent contractor. A wedding photographer would be the latter. For independent contractors, it must be specified within the contract that this is "work for hire." If it does not, then the contractor retains copyright for all work created. You have to look at what makes someone an "employee" as well. In the US, this has been determined through previous court cases, as I am sure could be found in Canada as well and could help to strengthen or defeat a claim of work for hire.
In the US, a few factors in order to be considered an employer/employee relationship consists of some of the following:
1 Control by the employer over the work (e.g., the employer
may determine how the work is done, has the work done
at the employers location, and provides equipment or
other means to create work)
2 Control by employer over the employee (e.g., the employer
controls the employees schedule in creating work, has the
right to have the employee perform other assignments,
determines the method of payment, and/or has the right
to hire the employees assistants)
3 Status and conduct of employer (e.g., the employer is in
business to produce such works, provides the employee
with benefits, and/or withholds tax from the employees
payment
This does not apply to a wedding photographer. They do not have benefits or taxes witheld. THEY determine payment methods not the client. The client has limited control over the photographers creative input, gear, assistants etc. Nor does the client provide any type of gear to complete the job.