The three elements of exposure are:
1. ISO - the measure of a digital camera sensor’s sensitivity to light
2. Aperture - the size of the opening in the lens when a picture is taken
3. Shutter Speed - the amount of time that the shutter is open
Imagine the camera has an eye that is going to let in light.
The aperture decides how much light will come in like a pupil.
The shutter speed is the eyelid and will open at different speeds controlling how long light will come in.
If you have the hole (aperture) wide open you don't want it open for too long or you will OVER expose your image.
If you have the hole closed small you need to open it long enough for enough light to get in or you will UNDER expose your image.
Now the smaller the number of your aperture the bigger the opening.
And your shutter speeds represent fractions of a second: 1/2 1/4 1/8.....1/60 1/80 1/100.
OK now not to confuse you, but film speed also plays a role here.
Just know that the darker your shooting conditions the faster the film you want. 100, 200 are slower 400, 800 are faster.
Even digital cameras have film speed settings.
Ok that said your camera should have a meter. It should tell you if you have the right settings. If you want to shoot moving things in daylight have a fast shutter speed and a small (bigger #) aperture.
If you want to shoot close ups or portraits with a blurry back ground you'll want your aperture wide open and an appropriate (for the light) shutter speed. Fast for bright light slower for low.
Posts
Aperture is like human eyes. If there's too much light, we minimize the opening of our eyes. If it is too dark, our eyes are wide open. Same with the apperture. If there's too much light, we minimize the aperture (8 for example), and if it too dark, we maximize the aperture (for example 2.8). Usually, we use fast speed for bright light and slower speed for lower or dark setting. I can say that, taking pictures in night setting is very challenging for me, and yet fun. My hobby in photography turns out to be a good business for me. I have some clients hire me for events and some buy my pictures for conceptualizing/making web designing. Here in Toronto, web design company plays big role in business because a beautiful website designed by a professional web designer (Toronto) is very effective in calling the attention of potential clients.
ReplyDelete