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<blockquote data-quote="hark" data-source="post: 193965" data-attributes="member: 13196">Personally I prefer the color of the first although it does look slightly overexposed; however, I prefer the DOF of the 2nd. To answer your question on whether DOF can be measured in millimeters...no. The closer you are to a subject, the less DOF you will have to work with even if you don't change your aperture. Take a step or so backwards, and your DOF changes slightly. So the DOF will change as you move closer and further away. Many cameras made today still come with a depth of field preview button. This allows you to view your image as it would look with whatever aperture settings you have selected. Because it stops down the lens, the image through the viewfinder becomes darker. Your photo won't expose darker because you aren't factoring in any shutter speed when using the preview button--it just gives you an idea of how much DOF you will have with that aperture. Here's a video explaining more:[MEDIA=youtube]k2G90Cramxk[/MEDIA]</blockquote>

[QUOTE="hark, post: 193965, member: 13196"] Personally I prefer the color of the first although it does look slightly overexposed; however, I prefer the DOF of the 2nd. To answer your question on whether DOF can be measured in millimeters...no. The closer you are to a subject, the less DOF you will have to work with even if you don't change your aperture. Take a step or so backwards, and your DOF changes slightly. So the DOF will change as you move closer and further away. Many cameras made today still come with a depth of field preview button. This allows you to view your image as it would look with whatever aperture settings you have selected. Because it stops down the lens, the image through the viewfinder becomes darker. Your photo won't expose darker because you aren't factoring in any shutter speed when using the preview button--it just gives you an idea of how much DOF you will have with that aperture. Here's a video explaining more: [MEDIA=youtube]k2G90Cramxk[/MEDIA] [/QUOTE]

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