 Allan |
changing iso setting on camera I understand that if I chang the iso setting on the camera to something other than that of the speed of the film, the contrast picture can be enhanced. Does changing the iso rating do exactly the same thing as exposure bracketing or will the outcome be different.
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Jeff S. Kennedy |
Changing the ISO setting on the camera fools the camera into thinking you have either slower or faster film than you really do. Setting it to a slower ISO will cause the camera to "think" the film needs more exposure than it normally would and you will overexpose your film. Overexposure of negative film results in more contrast and more saturated colors. If you are shooting slide film it results in less contrast and less saturated colors. Setting the ISO higher causes the camera to suggest less exposure. This will cause underexposure, which on negative film results in muddy low contrast prints. With slide film you get more contrast and more saturated colors. Bracketing is just another way to do the same thing. You bracket when you aren't sure of the correct exposure. You set the ISO when you know the film responds better at that ISO. Then if need be you can bracket within that ISO.
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Allan |
Thanks Jeff, off to experiment now Allan
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