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Nikon DSLR Cameras
D850
DX Mode
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<blockquote data-quote="nickt" data-source="post: 642628" data-attributes="member: 4923"><p>To say things another way, the image is simply cropped in camera to dx dimensions. If you took a shot with a dx lens and put the camera in fx mode and cropped the result yourself, it would be the same. And it really doesn't matter if the lens is dx or fx, dx mode crops it down the same. A 50mm fx lens and a 50mm dx lens both cast the same size image. The dx lens was just designed with budget and weight in mind and might show vignetting or edge distortion if used on a full size sensor. Since the dx sensor is smaller and the same distance from the lens, it doesn't catch the entire image cast. Because the dx sensor doesn't catch those fringes, some corners (figuratively and literally) can be cut in the dx lens design. That is why you can use either a fx or dx lens on a dx camera without care or difference, the dx sensor is not catching the fringe areas anyway.</p><p>The dx extra 'reach' comes from enlarging that smaller sensor area to be a comparable size to an fx image.</p></blockquote><p></p>
[QUOTE="nickt, post: 642628, member: 4923"] To say things another way, the image is simply cropped in camera to dx dimensions. If you took a shot with a dx lens and put the camera in fx mode and cropped the result yourself, it would be the same. And it really doesn't matter if the lens is dx or fx, dx mode crops it down the same. A 50mm fx lens and a 50mm dx lens both cast the same size image. The dx lens was just designed with budget and weight in mind and might show vignetting or edge distortion if used on a full size sensor. Since the dx sensor is smaller and the same distance from the lens, it doesn't catch the entire image cast. Because the dx sensor doesn't catch those fringes, some corners (figuratively and literally) can be cut in the dx lens design. That is why you can use either a fx or dx lens on a dx camera without care or difference, the dx sensor is not catching the fringe areas anyway. The dx extra 'reach' comes from enlarging that smaller sensor area to be a comparable size to an fx image. [/QUOTE]
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D850
DX Mode
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