Shutter speeds in the seconds – is “B” or “T” best?

[Bob McCarthy]

Ok

B when I'm counting one thousand one.... one thousand two...


T when I an using a watch (now days my iphone stopwatch) to time a long exposure

bob

[Jim Rice]

As an aside, I have begun carrying an electronic metronome to improve my accuracy on multi-second exposures.

[ic-racer]

T only when I anticipate walking away from the camera during exposure. For me, having to grapple for the cable release at the right time to fire it again is more likely to cause vibration problems than just holding the release in B mode.

[Ernest Purdum]

I have just remembered an occasion when I was using the kind of release that has a little ring to lock the plunger down. Sure enough, I had a longer exposure than desired, and used some words I should have mentioned in confession, when the little ring was unintentionally left in lock position.

[Wallace_Billingham]

I once snowshoed about half a mile in sub zero degree weather out onto the pack ice of Lake Erie to get a shot of glow over the ice after the sun had set. I was using bulb and had a locking cable release with a medium format camera.

It was so cold that the lock was frozen but seemed to unlock and I slung my camera and tripod over my shoulder for the hike back. Once back in the car I cranked the heat and about 30 seconds later I heard the shutter click back down. Yep it had been open the whole time and the shot was toast