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Nikon DSLR Cameras
D5200
Flash Overexposure with telephoto zoom.
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<blockquote data-quote="JohnT" data-source="post: 551793" data-attributes="member: 42060"><p>I have recently purchased a Sigma 18-250 Macro. After a using it in an indoor situation I felt many pop-up flash pictures were slightly overexposed. Did some back to back tests comparing with my Nikon 18-55 VRII. Using same focal length, the 18-55 had an aperture of F5.6 while the Sigma was F4.8. Everything else, ISO, shutter speed etc. was the same. Is this F-stop difference a characteristic of any larger Zoom lens or is it simply Nikon vs Sigma???</p></blockquote><p></p>
[QUOTE="JohnT, post: 551793, member: 42060"] I have recently purchased a Sigma 18-250 Macro. After a using it in an indoor situation I felt many pop-up flash pictures were slightly overexposed. Did some back to back tests comparing with my Nikon 18-55 VRII. Using same focal length, the 18-55 had an aperture of F5.6 while the Sigma was F4.8. Everything else, ISO, shutter speed etc. was the same. Is this F-stop difference a characteristic of any larger Zoom lens or is it simply Nikon vs Sigma??? [/QUOTE]
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Nikon DSLR Cameras
D5200
Flash Overexposure with telephoto zoom.
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