With what unit do we gauge them?
2007-02-23 08:14:07 · 5 answers · asked by rnramv 1 in Consumer Electronics ➔ Cameras
Light.
2007-02-23 08:21:16 · answer #1 · answered by oldmanwitastick 5 · 0⤊ 0⤋
Shutter speed is measured in fractions of a second. It indicates the length of time the shutter is open and hence the length of time the film is exposed to light. 1 second is a lot of time and light, 1/1000 of a second is less time and light. 1 second is more apt to blur while 1/1000 will stop the action of the subject in most cases.
Aperture settings are measured in f stop numbers. Indicate the size of hole light is allowed to pass through. Smaller numbers means a bigger hole, more light and less depth of field (that's another matter entirely)
Film speed is measured in ASA numbers. It indicates the grain size of the film and hence the light sensitivity. Bigger numbers mean less light needed to expose the film.
I can tell you how they relate but I can't think of any measurement that is common to the three. If this is a rhetorical question, i.e. you know the answer, would you please email me the answer at my profile. Thanks.
2007-02-23 16:34:46 · answer #2 · answered by gimpalomg 7 · 5⤊ 0⤋
Stops
2007-02-24 01:22:06 · answer #3 · answered by Brian Ramsey 6 · 0⤊ 0⤋
I don't know if this was a trick question, but gimpalomg couldn't have explained it better. For illustrations check out your local library.
2007-02-23 16:46:58 · answer #4 · answered by Vintage Music 7 · 0⤊ 1⤋
oldmanwit- that is the best, most susinct answer I've read on this yahoo answer thing yet. right on!
2007-02-23 17:45:38 · answer #5 · answered by no pepper 3 · 1⤊ 0⤋