
Originally Posted by
northernbillfan
Depends on how much light you need. If you are shooting in low light and want as much in the lens as you can squeeze, you'll want to try a lower setting such as f2.8-4.0. Your shutter speed should be no lower than 1/25. So in low light situations such as anything indoors, have your aperature as low as you can go to achieve the 1/25 or 1/30. If you are shooting in bright light you need a higher aperature such as f11 or higher. The shutter speed should be around 1/100 or so.
If your camera has TV mode, you can use this until you get used to the AV mode. TV mode allows you to set your shutter speed and it will then pick the apropriate aperature value. This will be the opposite settings as mentioned above. Set your shutter speed to 1/30 or 1/25 (the lowest you can go without a flash) and see what the aperture sets to.
This is all depending upon if you have onboard metering that shows you the settings.
I no longer use the AV or TV mode and just use Manual settings. The biggest trick to photography is knowing how much light you actually need to get the shot.
Hope this helps.