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Thread: Sunrise or sunset?

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[quote=GAFFER,416036]Actually you can use any (semi) auto setting for the first shot just to get an average exposure setting. A Priority is fine. I suggested Auto because that is the one most people use when they get a new camera....some never try anything else :o)

Bracketing is necessary because in many situations you are asking the camera to take a photo which is beyond its capabilities. (latitude) So taking several exposures gives you a choice of the best compromise. Adjusting the shutter speed allows more or less light to reach the sensor in the same way as adjusting the aperture (f stops). But adjusting the f stop also affects the depth of field (the distance which is in focus)eg using F11 gives far more depth of focus than using F4. This is the reason for usually using Aperture Priority, you choose the F stop and let the camera adjust the shutter speed to suit. Changing the shutter speed keeps the focus the same. However, below a 30th sec will introduce camera shake, hence the need for a tripod. You can also increase the ISO setting (sensitivity) to maybe 1600, this in effect allows more light to reach the sensor (actually it makes the sensor more sensitive). Only do this when you need to as it introduces "noise" (speckles) into the picture. (ok for a sunset shot)

Our eyes/brain are so clever that we don't see that different light sources are different colours. Daylight is blue, tungsten light is orange, fluorescent yellow/green. Auto White Balance is ok in average conditions but if used indoors or outside in shadow it needs some help. You will have some preset levels, Tungsten (bulb) Fluorescent (strip) daylight, etc and manual. Using manual you need a white card or paper so the camera knows what is white. Point the camera at the card and set the white balance. This will remain set until you change it or turn off the camera.[/quote]

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