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PASM Modes

trevor51590
03/08/04 12:35 AM GMT
Hey i have a camera that has PASM mode. Im not really experienced with it. Supposively it gives you more creativity when shooting. I can also change my iso speed. Can anyone really give me a descriptive response on what these settings do and like some examples? Thanks! Help is appreciated!
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Chamaelon
03/08/04 1:37 AM GMT
Ok...PASM is 4 seperate modes...
-P=Auto-Multi Program; basically the same as the full Auto mode
-A=Aperture Priority; you choose the aperture, the camera selects shutter speed
-S=Shutter Priority; you select shutter speed, camera chooses aperture
-M=Manual; you choose everything
~~~hope this helps! ;-)
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nil magnum nisi bonum
trevor51590
03/08/04 2:08 AM GMT
I got all that but what does each do to like the outcome of the picture?
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CrazyIvan
03/08/04 3:02 AM GMT
Automatic sets the camera to what it thinks the best settings are. The outcome is pretty generic for most conditions, but it is very helpful for beginners or for a "quick shot"

Aperture priority (my personal fav :-) )allows you to select how much depth of field (how 3-dimensional the picture looks) you want; the higher the number, the smaller the aperture and the greater the depth of field (confusing ain't it). ex: If you are shooting a butterfly but don't want the background foliage to be in focus, set the aperture to about 4.5 or 5.6. the camera will automatically set the shutter speed to correctly expose the picture.

Shutter Priority allows you to choose how long you want the shutter to be open. (This is most commonly used to photograph moving water or fast moving objects to increase or decrease the blur in the picture) Aperture is set automatically.

Manual mode is for the photographic trooper ;-) or if you are using an external boot flash that requires to adjust the settings to a certain mode. You must select the aperture and shutter speed seperately.

Hope this helps . . . the best advice is "experiment" . . .
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"The sky is not the limit . . . the ground is."
trevor51590
03/08/04 11:11 AM GMT
Thank you very much Crazylvan!
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+ppigeon
03/10/04 7:51 PM GMT
Changing iso can modify the perception of the light by the camera.
100 iso (normal mode): you can take photos in the sun, under the clouds, maybe inside a lighted room.
800 iso: you can take pictures in dark rooms (or in the night) without flash.
Be careful: with 400 or 800 iso, you can have many "noise" in your pictures (grainy pictures)
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"Violence is the last resort of the incompetent" (I. Asimov)
+WinterNight
03/11/04 2:36 AM GMT
Good to know this stuff, I actually just found out about all this stuff about 2 months ago. I have yet to use this new stuff for my pictures, I have tried to though.
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-WinterNight

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