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Digital Lifestyle
Images, Graphic Design, and Digital Photography
For those confused about aperture and shutter speed.
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<blockquote data-quote="BCRose" data-source="post: 1420035" data-attributes="member: 257329"><p>The original poster may want to do a little research on this matter and edit the post. It is not accurate and not explained particularly well. </p><p></p><p>As a professional photographer I shudder when I see people who mean well but do not understand the basics try to explain the relationship between Aperture and Shutter speed.</p><p></p><p>As Paull_77 explains, you can have a correct exposure at any shutter speed, I have taken many at 1/8000th that were not 'dark' as suggested. It all depends on the volume of light exposed to the sensor that is controlled by the Aperture. That in turn can be affected by ISO setting.</p><p></p><p>Try this real world experiment. If you have a lens that will open up to 2.8 or larger Aperture go outside on a sunny day and open your lens as wide as it will go. You will more than likely require a shutter speed of at least 1/4000 to create a correct exposure, depending of course on your subject.</p><p></p><p>The 'Sunny 16' rule is a tried and true method of determining a correct exposure. This rules says that on a sunny day a correct exposure will be f/16 at 1/125th of a second. So given that you can determine what the settings will be for any other shutter speed or aperture because they both divide exactly in half or double with each increment.</p><p></p><p>For example;</p><p></p><p>If the sunny 16 rule says that f/16 and 1/125 is correct then so will:</p><p></p><p>f/8 and 1/250</p><p>f/5.6 and 1/500</p><p>f/4 and 1/1000</p><p>f/2.8 and 1/2000</p><p></p><p>All these settings will give you the exact same exposures. As the Aperture increases in size and allows double the volume of light to reach the sensor then the shutter must match by doubling its speed and allowing the volume of light to be exposed to the sensor for half the time. The only thing that will change is the depth of focus. But that is another story <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="BCRose, post: 1420035, member: 257329"] The original poster may want to do a little research on this matter and edit the post. It is not accurate and not explained particularly well. As a professional photographer I shudder when I see people who mean well but do not understand the basics try to explain the relationship between Aperture and Shutter speed. As Paull_77 explains, you can have a correct exposure at any shutter speed, I have taken many at 1/8000th that were not 'dark' as suggested. It all depends on the volume of light exposed to the sensor that is controlled by the Aperture. That in turn can be affected by ISO setting. Try this real world experiment. If you have a lens that will open up to 2.8 or larger Aperture go outside on a sunny day and open your lens as wide as it will go. You will more than likely require a shutter speed of at least 1/4000 to create a correct exposure, depending of course on your subject. The 'Sunny 16' rule is a tried and true method of determining a correct exposure. This rules says that on a sunny day a correct exposure will be f/16 at 1/125th of a second. So given that you can determine what the settings will be for any other shutter speed or aperture because they both divide exactly in half or double with each increment. For example; If the sunny 16 rule says that f/16 and 1/125 is correct then so will: f/8 and 1/250 f/5.6 and 1/500 f/4 and 1/1000 f/2.8 and 1/2000 All these settings will give you the exact same exposures. As the Aperture increases in size and allows double the volume of light to reach the sensor then the shutter must match by doubling its speed and allowing the volume of light to be exposed to the sensor for half the time. The only thing that will change is the depth of focus. But that is another story :) [/QUOTE]
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Images, Graphic Design, and Digital Photography
For those confused about aperture and shutter speed.
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