How can we control aperture, i tried but when i take photoes it seem to go automatic.?

Your question is hard to answer because you have not given any specific information.





What kind of camera? Point and shoot? SLR?





What lens? Constant or variable aperture?





Are you in Auto mode or Aperture priority?





Even if you are in Aperture priority, if you have the typical non constant aperture zoom lens, the aperture will change on you as you zoom the lens. This will not happen with a constant aperture lens, i.e. a lens marked such as 2.8 that maintains the same aperture throughout the entire zoom range.





steveHow can we control aperture, i tried but when i take photoes it seem to go automatic.?
On an slr or dslr you will have an Av mode where you set the aperture, and the camera will set the shutter speed to obtain proper exposure. The aperture controls how much depth of field you have( background blurred to everything in focus). The more lower the number (f/stop) the more blur you will have, the higher the number(f/stop) the more of the scene will be in focus. Also you could use the manual mode and set both the aperture and shutter speed yourself.


Low number- f/4.5 background blurred out Great for posrtraits


High number- f/22 total scene in focus Great for landscapesHow can we control aperture, i tried but when i take photoes it seem to go automatic.?
You will have to tell us what camera model you are using.





Most P%26amp;S cameras don't have aperture or shutter speed priority options (although a few do) and some DSLR cameras have separate controls for aperture and shutter while others require you to toggle the control from aperture to shutter control.
it depends on the camera you have. a compact may not allow any contol.





Normally on the control wheel on the top of your slr camera it will say Av meaning aperture value switch it to that then you can control the aperture. f4 is more likely to give a blured background then f16