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Old 06-11-2007, 04:47 AM   #1
JakeB.
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Default Tutorial: Aperture (repost)
Aperture

Aperture is how wide a lens opens, effecting how much light is let into the camera when the shutter is released.
When a poor lighting situation is unavoidable, a large aperture is necesarry to keep the shutter speed high enough to avoid motion blur.

The aperture a lens is using or capable of is referred to with f/x... the smaller a number, the larger the aperture.

These are shots of my 50mm f/1.8

1. f/1.8 - You can see that the lens is completely open


2. f/4


3. f/8


4. f/16


5. f/22
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Old 06-11-2007, 06:18 PM   #2
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Default Re: Tutorial: Aperture (JakeB.)
very helpful info, thanks
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Old 06-13-2007, 01:58 PM   #3
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Default Re: Tutorial: Aperture (hapexamendios 2.0)
nice my d40 shows this on the lcd screen which is a plus
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Old 06-13-2007, 02:15 PM   #4
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Default Re: Tutorial: Aperture (EP Kreuzer)
nice, Jake.
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Old 06-14-2007, 05:41 AM   #5
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Default Re: Tutorial: Aperture (matt_shaban)
That original description while correct is far from complete... the effects of wide open versus closed down are vast, but the biggest issue is the effect on depth of field.


Wide open settings yields depths for fields that are extremely short:



Closed down Settings yield near infinity depths:

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Old 06-14-2007, 05:48 AM   #6
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Default Re: Tutorial: Aperture (MSchu)
Quote:
Originally Posted by MSchu
That original description while correct is far from complete...
http://honda-tech.com/zerothread/2010790
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Old 06-14-2007, 06:00 AM   #7
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Default Re: Tutorial: Aperture (JakeB.)
Like you said... 101
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