Cities that install red-light cameras usually shorten the yellow light in an effort to make more revenue. In addition, they are usually only ticketing the car and not the driver.
Think about that.
It's also not a moving violation from what I understand. It doesn't go on your record. And I've heard recently that most people never pay them, and they don't go under the same collection rules as unpaid tickets handed out by flesh and blood officers.
IOW, if you don't mind a small and temporary ding against your credit rating, simply ignore them.