Originally posted by sbyrne I finally pulled the trigger and ordered a sunpak DX 8R as per the recommendation of one of the forum members...
Me?
OK, try this (flash "auto" mode).
- Camera in M mode. Shutter speed 1/160 sec (or X, doesn't matter right now).
- Flash in one of 3 "auto" modes. Just pick one, it doesn't matter which one right now.
- Match the ISO setting on the flash and on the camera (say, 200).
- The flash indicates an aperture value. Set the aperture of the lens to that value if magnification ratio of the lens is less than 1:5. If the magnification ratio is around 1:2, open up the lens 1 more stop (or double the ISO setting on the camera). If the magnification ratio is around 1:1, open up the lens 2 more stops (or quadruple the ISO setting on the camera).
- Take a test shot.
- Adjust the lens aperture setting, or ISO setting to fix over/underexposure problem, if any.
- If you want ambient light to contributes more to the exposure, lower the shutter speed.
Manual mode:
- Camera in M mode. Shutter speed 1/160 (or X).
- Match ISO setting on the flash and on the camera.
- Estimate the distance from the image sensor plane (NOT from the front element of the lens) to the object, then adjust the flash's ratio setting (1, 1/2, 1/4....) so that the distance indicator on the flash matches the distance from the image sensor plane to the object.
- The flash indicates an aperture value. Set the aperture of the lens to that value if magnification ratio of the lens is less than 1:5. If the magnification ratio is around 1:2, open up the lens 1 more stop (or double the ISO setting on the camera). If the magnification ratio is around 1:1, open up the lens 2 more stops (or quadruple the ISO setting on the camera).
- Take a test shot.
- Adjust the lens aperture setting, or ISO setting to fix over/underexposure problem, if any.
- If you want ambient light to contributes more to the exposure, lower the shutter speed.
It's more complicated to type this than to actually do it. Before you know it, it'll become second nature.
Later on you'll know how to adjust ISO, aperture, and flash power to get the DOF or effect you want.