Quote:
can someone tell me how to change the shutter speed on mine? Without changing the rest of the settings?
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Kim,
That little dial on the top of your camera just to the right of the viewfinder should have one setting marked "T" (Time). If you place the dial to this setting you will be in shutter speed priority.
Notice that if you select this mode you can then dial in the shutter speed up or down. But it's not that simple. The shutter speed and the aperture (the hole that opens up and lets light into the camera) are dynamically linked. When you change the shutter speed the aperture will be changed as well. It is the combination of these two components for any given amount of light that gives the proper exposure.
I apologize for the following, the question was not that complicated. I just have to get this out of my system.
Let's assume that your subject and scene has "X" amount of light. The camera evaluates that scene and based on the sum of all it's settings produces a shutter speed / aperture combination which will satisfy those settings and produce what it thinks is a balanced exposure. In other words -- how wide shall I open my shutter (aperture) and how long shall I leave it open (shutter speed).
If you then come along and say that you're going to take your shutter speed and increase it by "Y" amount, the camera says fine, if you are going to give me less "Time" to gather the light that I need I'm going to increase the size of my aperture, which will let more light in and thus bring the exposure back into balance. No problem -- until you make a request of increased shutter speed (which is really a reduction of time) that requires an opening (aperture - 2.8, 4.5, 8 ... 22) that the lens cannot physically produce. What the camera then tells you is -- you can take this picture, but, I can't open wide enough with this short a period of time to produce a balanced exposure. Your little meter inside the viewfinder will begin to indicate an underexposed condition. Whew.
You can also go through this same exercise in the "A" aperture priority mode. I won't put you through that. But, each has it's own reason and purpose for being.
I don't think that's the best way to manage shutter speed for our purposes. I think the best way to manage shutter speed is through the ISO setting. By increasing the ISO you can increase the shutter speed and leave the aperture alone. I believe that the EOS Rebel will produce a usuable image at 800 ISO. But, you should only increase the ISO until you get the speed you need and no more. If you don't have enough light to to produce a decent shutter speed with 800 ISO you should wait until tomorrow.
Most of us know when we are in those low light situations. There are actually precious few things that I change when I go out with my camera. One thing I'm always considering is the light that I will be encountering. The way I have figured out how to manage that light is through the ISO setting.
All this has been learned(?) through years of trial and error, not out of an experts book or in an experts class. If someone has a better way to do it I'd sure be ready to listen.