I would sometimes like to take two shots quickly, at different apertures, such as f/2.8 and f/4, but with the same exposure value (EV). Is there a way to do this with the Sony NEX-5R?
In some situations, I don't have time to fiddle with the settings and then wait a couple of seconds to avoid camera shake, and then take the second shot -- whatever I'm trying to capture would have passed by then. An example is taking a long exposure photo of a passing train at night. By the time I adjust the aperture and wait for camera shake to stop, the train would have passed. So, I wanted to check if there's some way to set this up ahead of time, and then trigger a rapid sequence of shots when the train comes.
Note: I don't think exposure bracketing will help here, since it will take a sequence of photos with a different EV value. Whereas I want a sequence of photos that are equally bright or dark, but shot with different apertures (and correspondingly shorter or longer shutter speeds).