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Matt OHarver wrote:
The lighting was ambient, no flash allowed during the ceremony, I went through and checked all of the files, each says the correct aperture and ss. I shot a session last night with the camera and lens combination with a new battery I picked up locally. And both performed flawlessly. I'm shooting basketball tonight and I'm going to use the same camera and lens combination as a wide angle baseline to see what happens. Will let you know.
At this point I believe it has to be a battery issue until I see it occur again. I shot a full studio session with it last night with not a single issue.
Sure is nice to hear your good news.
The reason I suspected 99.99% battery issue was because of what you wrote and my little understanding of how the shutter, sensor, micro-processor and memory works.
The electronic shutter will trip as long as the capacitive charge pump that is hidden in the grip of the DSLR reaches a certain set voltage level, it than release the latch that sets off the spring load shutters.
While the shutters (1&2) are open, the processor will process the signals from the sensor and store them in the Flash memory. While this is going on the set voltage level must be kept stable without rippples, but in case of unstable voltage level the process can be corrupted, interrupted or even reset. If that is the case the camera will not know, but the shutter will be ready to fire once again once the voltage level in the charge pump reach the set limit.
Note: The power requirement for the charge pump is a lot less than what is require for the sensor, processor and memory combine, and that is why it is causing what looks like a dark frame problem.
Hope your next test will be as sucessful as your last one.
Best of Luck!