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<blockquote data-quote="pforsell" data-source="post: 667135" data-attributes="member: 7240"><p>While the D7200 is a much more versatile camera with better handling and auto focus, the difference in noise is negligible. Perhaps one third of a stop at best.</p><p></p><p>See the measurements below done by Bill Claff and DXOMArk respectively.</p><p></p><p>There's two scenarios involving lenses, depending on whether you need to crop and enlarge, or not.</p><p></p><p>If you do not need to crop and enlarge, then a faster lens helps a lot. For example a Nikkor AF-S 300mm f/4 D would be 1 stop faster, letting you shoot at ISO 800 in conditions when you now need to go to ISO 1600. The lens doesn't break the bank, but is a prime which won't do if you need a zoom. Wide aperture long zooms will be <strong>very</strong> expensive, though. The Nikon AF-S VR 180-400 f/4 costs over $12,000. The newer AF-S VR 300mm f/4 PF is smaller and ligher than 300/4D, has faster focusing, but costs more. Could you cope with a Nikkor AF-S 70-200mm f/4? Lower cost but shorter reach. </p><p></p><p>If you on the other hand need to crop and enlarge, then a longer lens with the same maximum aperture as you have now would increase the image quality. Cropping and enlarging by a factor of 2 means exactly a 2 stop increase in noise visibility. Similarly a 1.4x crop and respective enlargement corresponds to a 1 stop increase in noise visibility. So, if you currently need to crop a lot, then maybe a Nikkor AF-S VR 200-500 f/5.6 would offer the best bang for the buck? Optical enlargement (longer lens) does not increase noise, digital enlargement does.</p><p></p><p></p><p><span style="font-family: 'Verdana'"><span style="font-size: 10px"><a href="http://www.photonstophotos.net/Charts/PDR.htm#Nikon%20D3200,Nikon%20D7200" target="_blank">Photographic Dynamic Range versus ISO Setting</a></span></span></p><p><span style="font-family: 'Verdana'"><span style="font-size: 10px"></span></span></p><p><span style="font-family: 'Verdana'"></span></p><p><span style="font-family: 'Verdana'"></span>[ATTACH]286226[/ATTACH]</p></blockquote><p></p>
[QUOTE="pforsell, post: 667135, member: 7240"] While the D7200 is a much more versatile camera with better handling and auto focus, the difference in noise is negligible. Perhaps one third of a stop at best. See the measurements below done by Bill Claff and DXOMArk respectively. There's two scenarios involving lenses, depending on whether you need to crop and enlarge, or not. If you do not need to crop and enlarge, then a faster lens helps a lot. For example a Nikkor AF-S 300mm f/4 D would be 1 stop faster, letting you shoot at ISO 800 in conditions when you now need to go to ISO 1600. The lens doesn't break the bank, but is a prime which won't do if you need a zoom. Wide aperture long zooms will be [B]very[/B] expensive, though. The Nikon AF-S VR 180-400 f/4 costs over $12,000. The newer AF-S VR 300mm f/4 PF is smaller and ligher than 300/4D, has faster focusing, but costs more. Could you cope with a Nikkor AF-S 70-200mm f/4? Lower cost but shorter reach. If you on the other hand need to crop and enlarge, then a longer lens with the same maximum aperture as you have now would increase the image quality. Cropping and enlarging by a factor of 2 means exactly a 2 stop increase in noise visibility. Similarly a 1.4x crop and respective enlargement corresponds to a 1 stop increase in noise visibility. So, if you currently need to crop a lot, then maybe a Nikkor AF-S VR 200-500 f/5.6 would offer the best bang for the buck? Optical enlargement (longer lens) does not increase noise, digital enlargement does. [FONT=Verdana][SIZE=2][url=http://www.photonstophotos.net/Charts/PDR.htm#Nikon%20D3200,Nikon%20D7200]Photographic Dynamic Range versus ISO Setting[/url] [/SIZE] [/FONT][ATTACH=CONFIG]286226._xfImport[/ATTACH] [/QUOTE]
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