First of all hello, I'm new here! Been lurking off and on for a couple of years now, and am slowly becoming more active as a photographer. Mainly shooting weddings at the moment, but more recently have been combining my love of photography with my love of mountain biking, and have been really pleased with the results (and the response!).
I've been shooting mtb races, selling the images as downloads or prints to the participants. The download option (using Zenfolio) comes with a personal use licensing agreement. Some of these riders are sponsored to a certain degree by bike shops or manufacturers, and I have received a couple of orders from these bike shops. The last order was from a bike shop for every rider wearing their gear, and I added a note in the email containing their download link that this order allows for personal use of the images as per the licensing agreement, and that they should contact me to discuss negotiating a commercial use agreement should they wish to use the photos on their shop website. No word back from the shop, however I have since discovered they are using the images on their shop Facebook page. Now correct me if I'm wrong, but this would constitute commercial use yes?
Any ideas as to how I should proceed? At the moment it's been suggested a friendly email asking where to send the invoice for starters. Definitely want to keep it friendly - the mtb industry is a fairly small one here in Australia. And also any ideas as to how much I should charge per image for this usage? And how I should charge - ie time-based or one-off fee? I currently charge $7.50 per download with a personal use license for all the race participants, but would love to try selling images of sponsored riders to shops and manufacturers.
Thanks heaps for your help,
Tim