how do you change the exposure on a Nikon d100?

Question

Exposure time and etc

Answer 1

I own a D100, but I don't use it much. I can tell you when looking at the top of the camera, there is a settings wheel on the top right hand with marking's such as ISO, CUST, M,A,S,P.
To allow for user set shutter speeds, choose S, which will put your camera in 'Shutter Priority' mode. You choose the shutter speed, the camera chooses a corresponding aperture to result in correct exposure.
OR
Choose M, which puts the camera in 'Metered Manual'. When using this setting you choose both the shutter speed and the aperture to use. Look through the viewfinder, at the bottom, slightly to the right for the exposure scale, which tells you how far over/under your settings are from what the camera recommends.
P.S. Although they resemble the unabridged encyclopedia, you might refer to the owners manual, which is filled with all kinds of useful info, on settings, AF modes, and Metering modes. The D100 has some cool features like spot metering linked to the AF points, and custom functions that allow you to set up the camera to be more user friendly.

Answer 2

First of all, if you don't have one, here's the user's manual.
http://www.nikonusa.com/pdf/manuals/dslr/D100_en.pdf

Press the +/- button while rotating the command wheel. You can increase or decrease the standard exposure by + 5EV (overexposure) or -5EV (underexposure). See page 86 of the manual.

You an also set the meter to Manual and change both the aperture & shutterspeed as you wish. Try different settings and see the results in the lcd.

If you have any more questions, please just ask.

Answer 3

Hello Peggy.

Set aside some time and READ & STUDY the Owner's Manual for your camera. Taking some photography classes would also help you to better understand your camera.