i understand what is shutter and apeture..but i'm though since they have 1/4000s then i must at least be able to ultilise it...if not won't it be a white elephant?
Yes... It is 100% true that you should be able to use it. But at first, you must understand when and why you should use it.
Do you know how to read (understand) the camera meter? I don't think so..
There is something like this you can find in your view finder. Can be horizontal or vertical depends on the brand of the camera.
"--'--'--"--'--'--"
If the expoture is right, you will see this.
"--'--'--
*--'--'--"
If the expoture is not enough, you will see something like this (take note of the star which is on the left).
"--
*--'--"--'--'--"
If the expoture is high, you will see something like this (take note of the star which is on the right).
"--'--'--"--'--
*--"
let's say you want to shoot a fish in your fish tank (aquarium) and
Conditions.........
(1) you are not using flash.
(2) There is no ambient light (i.e at night and all your room lights are off)
(3) You fixed your zoom (e.g at 50 mm) and your lens has maximum aperture of F2.8.
(4) Your camera is mounted on tripod.
(5) Your fish tank is evenly lit with fish tank lights.
(6) Your fish is moving.
READ CArefully..
First, you shoot
full auto at iso 400 (assuming your camera have no auto iso or you are not using auto iso).
-- your camera metering shows "--'--'--
*--'--'--" and shutter speed is 1/30 and aperture value is F4.0.
The picture will be nice. Not too dark and not too bright. But because your fish is
moving, you will see your fish a bit blur.
Second, you shoot
manual exposure at iso 400. You want your fish to be sharp in the pic (i.e. stationary). You set your aperture to F4.0, and Shutter speed to 1/120.
-- your camera metering shows "--
*--'--"--'--'--" (i.e the amount of light enters the sensor is 2 stops under.)
The picture will be darker than the first one but your fish is more stationary (sharper).
That was how your 1/4000 case happens.
There is no enough light for your photos to be properly exposed.
Try to use AV (aperture priority) mode and put the aperture value to the smallest value. (i.e 2.8 or 3.5, the smaller the no, the bigger the apperture and more light goes into the sensor).
And aim at whatever you want to shoot. Read out the shutter speed from the viewfinder.
That is the fastest you can go for that scene or subject. If anything faster, your photo will turns out dark. You may wish to push up your iso but there is limitation that your camera can deliver.
hope you understand.:sweat::sweat::sweat: