Today I went to a car show with the Pentax 645. Not realizing the top shutter speed is 1/1000, I didn't bring a pol or ND filter. I shot E100VS at 100 and Ilford HP5 at 400 ISO-that's about as slow as DR5 lab recommends for that film. In the blazing sunlight I had to use small apertures and get more DOF than I wanted Gotta get used to MF-with the Nikon 35mm and DSLRs I have, the top speed is 1/8000. I need to realize that the 645 doesn't do EVERYTHING like my other SLRs A polarizer probably would have been good to cut the glare from the shiny paint on the vehicles.