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I have a mid term tomorrow in photography but i am having trouble learning the
- Thread starter xkarafsx
- Start date
M
Mere_Mortal
Guest
There are all kinds of bracketing; focus bracketing, exposure bracketing, ISO bracketing, white balance bracketing.
It basically means taking a series of shots on either side of nominal.
For example: Let's say you had a nominal read of f/8 at 1/250 using Ektar 100 Negative film. I would probably bracket by 1/2 stops for that particular film.
F/8 - 1/500 EV-1.0
F/8 - 1/350 EV-.5
F/8 - 1/250 EV0
F/8 - 1/180 EV+.5
F/8 - 1/125 EV+1.0
Using slide film or digital you might only exposure bracket by 1/3 or even 1/4 stops.
Digital allows one to bracket for white balance as seen in this tutorial:
http://www.flickr.com/photos/samfeinstein/2996707491/
It basically means taking a series of shots on either side of nominal.
For example: Let's say you had a nominal read of f/8 at 1/250 using Ektar 100 Negative film. I would probably bracket by 1/2 stops for that particular film.
F/8 - 1/500 EV-1.0
F/8 - 1/350 EV-.5
F/8 - 1/250 EV0
F/8 - 1/180 EV+.5
F/8 - 1/125 EV+1.0
Using slide film or digital you might only exposure bracket by 1/3 or even 1/4 stops.
Digital allows one to bracket for white balance as seen in this tutorial:
http://www.flickr.com/photos/samfeinstein/2996707491/
Z
zanthus
Guest
bracketing means that you just manually adjust the exposure of the picture. Lets say you are taking a picture and the camera is telling you that
You are picking a 1/500th shutter speed for example, and the camera is
picking a f8 aperture for example (In a case where you are shooting in shutter priority.
Well now you take one picture at the camera's recommended setting, AND ALSO, you manually adjust the aperture to f5.6 (to overexpose)
and take the picture at f5.6 with the same 1.500th shutter, AND ALSO
you then Manually adjust the exposure to f`11 and keep the shutter at 1/500th....hence underexposing the image
So now you have 3 pictures. One taken at the cameras recommended setting, One picture is underexposed by what is called ONE STOP
and the other is Overexposed by what is called ONE STOP.
The theory is that the camera's internal light meter which it used to suggest a recommended exposure is often fooled by environmental factors. Thus, by taking three pictures at different exposures, you are likely to have at least one turn out pretty good.
Most camera actually have an exposure compensation dial which will allow you to either overexpose or underexpose the image by as much as 2-3 STOPS.
You are picking a 1/500th shutter speed for example, and the camera is
picking a f8 aperture for example (In a case where you are shooting in shutter priority.
Well now you take one picture at the camera's recommended setting, AND ALSO, you manually adjust the aperture to f5.6 (to overexpose)
and take the picture at f5.6 with the same 1.500th shutter, AND ALSO
you then Manually adjust the exposure to f`11 and keep the shutter at 1/500th....hence underexposing the image
So now you have 3 pictures. One taken at the cameras recommended setting, One picture is underexposed by what is called ONE STOP
and the other is Overexposed by what is called ONE STOP.
The theory is that the camera's internal light meter which it used to suggest a recommended exposure is often fooled by environmental factors. Thus, by taking three pictures at different exposures, you are likely to have at least one turn out pretty good.
Most camera actually have an exposure compensation dial which will allow you to either overexpose or underexpose the image by as much as 2-3 STOPS.
L
Lover not a Fighter
Guest
Brackets are like paranthesis "(" and ")". So they go AROUND the important stuff.
So if you were to BRACKET an exposure, you would have
(1) correct exposure
(2) under exposure - bracket
(3) over exposure -bracket
The under and over BRACKET (goes around) the correct exposure. So you would take 3 pictures just to make sure you have the correct exposure. Some people would take 5 pictures
1 WAY UNDER
1 little bit under
1 correct exposure
1 little bit over
1 WAY over
Good Luck...
So if you were to BRACKET an exposure, you would have
(1) correct exposure
(2) under exposure - bracket
(3) over exposure -bracket
The under and over BRACKET (goes around) the correct exposure. So you would take 3 pictures just to make sure you have the correct exposure. Some people would take 5 pictures
1 WAY UNDER
1 little bit under
1 correct exposure
1 little bit over
1 WAY over
Good Luck...