When increasing or decreasing the camera exposure with the up/down buttons, its not so useful because all it does is add seconds. Normally camera exposure is controlled in power of 2 increments. This is especially a problem when the exposure is below 1 second, say .1 s. An up exposure select puts the exposure out of range to 1.1 sec. It would be better if the exposures moved in power of 2 starting with 1 sec. Thanks