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Anonymous
>>43990
Well, almost all shutters up until the early forties had b and t settings, but from what i've read, shutter makers and the general populace started to think it was redundant to have both B and T since they did the same thing, and so they axed the T setting, leaving cameras to require a cable release for long exposures. I don't know how true that is, but it sorta makes sense. Nowadays, since only digital slrs use mechanical shutters, anything else would be a major battery drain, and even with the dSLR it's a battery drain, because the sensor is electronic and thus would be on the whole time the shutter is open.
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