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Photography Q&A
200mm f/4 lens focusing distance and blurry image at 1:1 magnification ratio
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<blockquote data-quote="BF Hammer" data-source="post: 836787" data-attributes="member: 48483"><p>Here is an example of manipulating Depth Of Field with your f-stop. At f/2.8 with a 90mm lens first.</p><p></p><p><img src="https://imgur.com/qwfKpYu.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>And shrinking the Aperture to f/16 and rotating the subject for a flatter plane to the camera sensor.</p><p></p><p><img src="https://imgur.com/MW6xcBu.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The physics of the lenses means that my 90mm lens in the example will give a wider DOF than a 200mm lens. The more magnification you use, the shallower that DOF will get. So getting closer to your subject is going to be working against your goal of sharper photos.</p></blockquote><p></p>
[QUOTE="BF Hammer, post: 836787, member: 48483"] Here is an example of manipulating Depth Of Field with your f-stop. At f/2.8 with a 90mm lens first. [IMG]https://imgur.com/qwfKpYu.jpg[/IMG] And shrinking the Aperture to f/16 and rotating the subject for a flatter plane to the camera sensor. [IMG]https://imgur.com/MW6xcBu.jpg[/IMG] The physics of the lenses means that my 90mm lens in the example will give a wider DOF than a 200mm lens. The more magnification you use, the shallower that DOF will get. So getting closer to your subject is going to be working against your goal of sharper photos. [/QUOTE]
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Photography Q&A
200mm f/4 lens focusing distance and blurry image at 1:1 magnification ratio
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