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Lenses
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50mm f/1.8 AF-S versus 50mm f/1.8 "D"
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<blockquote data-quote="Brian" data-source="post: 248246" data-attributes="member: 17621"><p>Companies do make converters that will reduce the image circle, effectively reducing the focal length- but it also reduces the back-focus of the lens. It will work on mirrorless cameras, but not on an SLR as the optics would interfere with the mirror. It is the same idea as a Tele-converter. A Teleconverter increases focal length and increases back-focus. The "Wide-Converter" relies on the camera body having a small flange-to-sensor distance.</p></blockquote><p></p>
[QUOTE="Brian, post: 248246, member: 17621"] Companies do make converters that will reduce the image circle, effectively reducing the focal length- but it also reduces the back-focus of the lens. It will work on mirrorless cameras, but not on an SLR as the optics would interfere with the mirror. It is the same idea as a Tele-converter. A Teleconverter increases focal length and increases back-focus. The "Wide-Converter" relies on the camera body having a small flange-to-sensor distance. [/QUOTE]
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Lenses
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50mm f/1.8 AF-S versus 50mm f/1.8 "D"
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