shutter speed :)

assalamualaikum wa rahmatullah :)

i am sleepless....
well then let's continue with the shutter speed..

SHUTTER SPEED?

well... in words, shutter speed is the legth of time that the shutter remains open to allow light to reach the sensor for the photograph...
tak faham sangat kan?

well basically the DSLR that you are using has this mechanism called the shutter which can open to allow light to rach the sensor of the camera and close to ...err..not to allow light to reach the sensor ehehe...

hurm...lets make an example...

see the picture?

err..ignore the ugliness ..and the lameness..i'm not an art student anyway :)

okay.let's say you are the camera's sensor.

basically you are in a dark room so you can't see anything yet (just imagine it!! i should've drawn the orang lidi in a box@room but that's it...tak terlintas difikiran mase tu).

and the curtain which is the only window for you to see the outside world

is

the camera's shutter

well...that would work :p

aaannd outside

there's a "cat"..although it doesn't really look like one...

(insha Allah i'll change the picture with a better one (yang lagi senonoh)...if i have the time :p )

now basically the curtain need to be opened for you to see the "cat"

and same goes to the camera

the shutter need to be opened in order for the sensor to record the image of the "cat"...haih disturbing cat ni =="

now the problem is the camera's sensor is not like our human's eyes..

it records the image by collecting the light from outside...

thus, opening the shutter/curtain for too long would make the image too bright or in other word 'overexposed' (well..that's the term we use in photography :) )

therefore by the time the light collected is enough or suffice (cukup dah ) the curtain need to be closed.

and

if the light is not enough, then the shutter needs to be opened longer so that the camera's sensor could collect more light :)

NOW! the interval between the shutter opens for the light to come in and it closes back is called the shutter speed! see :) it's not that hard to understand this..

here see some example

here i took some photos with same setting but different shutter speed.

Note the difference. The one that i took wit longer shutter speed is brighter compared to the picture with the faster shutter speed.

usually entry-level cameras would have this range of shutter speed : 30sec - 1/4000sec (it means it can be opened from 30 seconds long and 1/4000 of a second)

and high-end cameras usually have the range of 30sec - 1/8000sec (well that's twice as fast as 1/4000sec)

and both would have this "BULB" setting..

BULB is where the shutter remains open as long as the shutter button is pushed.

this setting is used usually when you need an exposure longer than 30 seconds.

THE FUNCTIONS..

well as i told you before it controls the amount of light reaching the sensor

there's another function of the shutter speed where you can freeze or blur motion.

here's an example...

here are some examples (i googled them)

note how slower shutter speed captures the movement of the object 

So!! as the conclusion

longer shutter speed = brighter image / more movement blur

faster shutter speed = darker image / less movement blur :)

now2...let's stop here for now okay :)

next i'll tell you about the ISO!

 here :)

assalamualaikum :)