In photography, how would I change these things to get the best photos?

  • Thread starter Thread starter joni
  • Start date Start date
J

joni

Guest
The ISO. I don't know what this means or does, but why would I make it low or high? My camera has a range of 64 to 1600, and then 6400 (but that makes it 4mega pixels and not the usual 8)

The aperture. In what cases would that need to be low or high. My camera has a range of F2.8 to F8.

The shutter speed. I have a basic idea on what this is. But why use a slow one and does it need to be adjusted in tandem with the others. My camera has a range of 4" (I don't know what the " is for, but is goes down with numbers without them, down to 1.3, then goes to 1", 1.3", 1.5" etc) to 2000.

Thank you for all of your help!!
 
Use a higher ISO when there isn't enough natural light, either at night or when there isn't available natural light indoors. A higher ISO also helps prevent blur when using a flash isn't desirable. An ISO of 100 is fine when you're shooting outdoors during the day. An ISO of 1600 would be suitable for nighttime shots when there's at least some ambient light.

Aperture controls your depth of field. The larger the aperture (smaller f-stop number like 1.8) the more depth of field. The smaller the aperture (bigger f-stop number like 11) less depth of field. An example of photos taken with different apertures: http://fc05.deviantart.com/fs29/i/2008/109/8/1/Depth_of_Field_Tutorial_1_by_killrb323.jpg

Shutter speed controlls how quickly (or slowly) your shutter trips. You would use a slower shutter speed to get a creative motion blur like this: http://www.asiaexplorers.com/malaysia/penang/titikerawang/07.jpg or this: http://www.homephotog.com/tutorials/images/shutter-2.gif. Using a slower shutter speed can also help let in more light in darker conditions, while using a tripod of course, since leaving the shutter open can cause blur, even if that's not what you had intended. Also, the quotations are seconds. So 4" would be 4 seconds and 1.5" would be 1.5 seconds. 1/2000 would be 1/2000's of a second.
 
ISO is how much you expose the image.
If you want a lighter image use a higher ISO and vice versa for a darker image. A situation you would use ISO is when you are taking a high shutter picture but it's coming out dark, so you would up the ISO to get it lighter, but still have that crisp high shutter effect.

The aperture affects how much light is coming into the camera. The aperture is really a hole in the camera that opens up either bigger or smaller. The LOWER the aperture, the more light that comes into the image. The HIGHER the aperture the less light. It's confusing to some people because they think more light=higher aperture but it's really opposite.

Shutter speed is just how fast the image is being taken. This also affects the exposure of your image. You would use a high shutter speed if you were taking people moving. High shutter speeds do, however, make the picture a lot darker because your not exposing all of the image. But just make sure you have appropriate light for a high shutter image. Low shutter speed's are ideal for situations where you don't have enough light and you need more light exposed. People usually use this for night time photography. Also, say a group of car's were passing by and you took a picture with low shutter speed, you would get that cool streaking affect. Lower shutter speeds look like: 1.5, 2, 6, 20. Higher shutter speeds look like 15o, 2oo.


Hope I helped
 
Back
Top