tag:blogger.com,1999:blog-87541408081873950.post8004447902917019373..comments2015-11-19T20:50:39.609-08:00Comments on Hub's Photography Tips & Picks: Guidelines for Purchasing Your First Digital Single Lens Reflex (DSLR) CameraHubhttp://www.blogger.com/profile/00286182348158010983noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-87541408081873950.post-88868017455184088382009-09-17T23:45:14.178-07:002009-09-17T23:45:14.178-07:00i have a friend who is into photography as well, h...i have a friend who is into photography as well, he told me to point the camera at the sky at f/16 to determine if there dust in the sensors..gate valveshttp://www.meaincorporated.comnoreply@blogger.com