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Shutter speed confusion
Maybe this sounds irrevelant, but I believe the following "increase/decrease" statements, which I read quite often in articles, are confusing to beginners..

1. Going from for instance a shutter speed of 1/60 sec to 1/125 sec is sometimes called "increasing your shutter speed". Sounds logical, 1/125sec is a "faster" shutter speed than 1/60sec. In this sense you could say that you "increase" the speed..

2. But most often, going from 1/60 sec to 1/125sec is also called "decreasing your shutter speed by one stop". Sounds logical too, the length of time that the light hits the sensor is smaller, so one stop less light..

English is not my mother tongue, obviously, but is there a kind of convention that statement 2 is the correct way to go ? .

Rudi De ClercqBelgium..

Comments (6)

RudiDeClercq wrote:.

Maybe this sounds irrevelant, but I believe the following"increase/decrease" statements, which I read quite often in articles,are confusing to beginners..

1. Going from for instance a shutter speed of 1/60 sec to 1/125 secis sometimes called "increasing your shutter speed". Sounds logical,1/125sec is a "faster" shutter speed than 1/60sec. In this sense youcould say that you "increase" the speed..

2. But most often, going from 1/60 sec to 1/125sec is also called"decreasing your shutter speed by one stop"..

To be frank, I don't think I've heard it used in this way..

Sounds logical too, thelength of time that the light hits the sensor is smaller, so one stopless light..

English is not my mother tongue, obviously, but is there a kind ofconvention that statement 2 is the correct way to go ? .

Rudi De ClercqBelgium.

As a native English speaker, statement 1 is the correct usage..

You could say, going from 1/60 to 1/125 is increasing the shutter speed (or using a faster shutter speed). It is also decreasing the exposure time..

"Exposure Time" is more often used for long exposures, such as 30 seconds, or 2 minutes, but is also correct for fractions of a second. As the shutter speed increases, the exposure time decreases..

Regards,Peter..

Comment #1

Peter is right. But let me stress one of his points....

The term "shutter speed" is illogical, which leads to other illogical expressions, such as "faster shutter speed". If we would all convert to "exposure time", we would be able to communicate more clearly..

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #2

CharlieGood point. I like the term "exposure time" much better.I am going to start using it..

It is definetly much clearer, especially since there are different shutters, electronics, etc which all control the "exposure time"..

Ed.

Chuxter wrote:.

Peter is right. But let me stress one of his points....

The term "shutter speed" is illogical, which leads to other illogicalexpressions, such as "faster shutter speed". If we would all convertto "exposure time", we would be able to communicate more clearly..

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #3

Thanks, Ed. BTW, "exposure time" has the same number of characters as.

"shutter speed", so there is little reason to NOT use it. We need a growing cadry of people who consistently use "exposure time" so that others will adopt that convention. Thanks for your help!.

Ed Grenzig wrote:.

CharlieGood point. I like the term "exposure time" much better.I am going to start using it.It is definetly much clearer, especially since there are differentshutters, electronics, etc which all control the "exposure time"..

Ed.

Chuxter wrote:.

Peter is right. But let me stress one of his points....

The term "shutter speed" is illogical, which leads to other illogicalexpressions, such as "faster shutter speed". If we would all convertto "exposure time", we would be able to communicate more clearly..

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'.

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #4

Wouldn't the correct terminology in OP's #2 be "stopping down"? rather than decreasing the stop...

Comment #5

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #6

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