Originally posted by: punchkin
Originally posted by: joutlaw
Like I said... we're noobs to D-SLRs... and we're learning.
I read the entire manual at work yesterday and picked up a few things. I could tell from the pictures that they got washed out from the flash.
I think she could have gotten same lighting effect without the flash if a higher ISO was used. Also to blur the background I need a smaller aperature? Correct me if I'm wrong.
You have to start to become great. I wasn't sneering, just remarking. It's good you read the manual, because most don't!
For outdoor shots, you will generally get the best results using Av mode. You choose the aperture, which directly controls the depth of field (DOF). Then the camera calculates the shutter speed needed to achieve a correct exposure, based on the ISO you've chosen, and uses that shutter speed. Hence the camera lets any excess light "spill over" into a faster shutter speed, which is usually a good thing unless you are going for a special slowing effect, e.g. a waterfall shot where the watter is blurred on purpose.
Using Av mode, you still need to keep an eye on your results every so often in changing light conditions, especially in the late afternoon as light falls. If the shutter speed falls too low, up the ISO to the next level.
I would not use the built-in flash at all until you are more advanced. You need to know what you are doing, including ratios of foreground to background exposure and how to use Flash Exposure Compensation (FEC) to dial it down. In the meantime, much more valuable learning, and better shots, will result from just watching the light and the background. Especially at first, don't shoot subjects in murky light against a bright-lit background; these are not good conditions.
Going back to DOF: to blur the background, you need more distance between the subject and the background (relative to the distance between subject and camera), and/or a WIDER aperture, i.e. lower f/number. This stuff is in the manual in limited degree.
You need to get a feel for what f/number in a particular situation will give the correct amount of DOF, so you must experiment. I would pick up a 50mm f/1.8 prime ($75 new) to speed this part of your development; you can get some nice portraits with it as well.