If you are going to make a business from doing HDR Photography, a question that might come up is where to base on the business legally. I highly recommend having it based in Hong Kong. There is many reasons for this.
If you are an American, this will not matter as much because we are taxed on world wide income to a degree. It is not as clear cut as it seems but there is some ways to reduce that burden.
The rest of the world might be very smart to look toward the old city to establish their legal base. There are quite a few interesting benefits to doing so.
HDR School is based in Hong Kong for tax purposes as well. The following is my experience is setting up a business there.
Steps to establishing a business in Hong Kong