If someone else borrowed your car, you can't be prosecuted. However, understand that some states such as new york treat red-light camera tickets like parking violations, holding registered owners liable rather than the driver specifically.
[header] How to dispute a traffic camera ticket [title] Check the date, time, and location of the ticket. [step] Because camera tickets are sent to the owner of the car, not the driver, make sure you actually were driving the car when the ticket was issued. [substeps] Generally, the prosecutor must prove that you were driving in that location at that date and time.