Ace Photo in Ashburn is hosting a demo day where you can try out the Pentax 645Z on Wednesday August 13th - 2:00 PM - 7:30 PM. They will be supplying the camera, lighting and a professional model and it's FREE! All you need to bring is an SDHC memory card.
Click the link below to register and select a time. I'm going to the 3-4PM session.
Pentax 645 Z Medium Format Hands-On Studio Workshop Tickets, Ashburn - Eventbrite
Mike