This is the final weekend for 2013...
There are many great photo opportunities that can be found at the Maryland Renaissance Festival. From the jousting to the costumes. It is almost impossible to not find something to photography.
This is an open un-led group event. You can RSVP if you want to try and meet up together (I usually hang out at one of the Taverns :) ).
Cost is $22 for adults and can be purchased online.