I've received many inquiries regarding a standard video production agreement that production companies and/or independent cinematographers can use with their clients. Below is a link to a standard contract.
Agreeing to the essential terms in a video production project before starting the project is always good practice. Doing it in written form through a video production contract is even better. A written contract will help you get paid on time and allow you to flex legal muscle if things go awry.
Here is a Standard Video Production Agreement that you are welcome to use that will help protect your interests. You can outline payment terms on scheduled delivery items, and specify licensing rights so after the project is over you can monetize video assets at Nimia.com.