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<blockquote data-quote="hark" data-source="post: 659086" data-attributes="member: 13196"><p>They do not come up with the exact measurements. I'm having trouble dialing in exactly 60 feet into TrueDoF-Pro. I either go over by 4" or at least 1" too short. But this is what I came up with as close as I could get to 60 feet:</p><p></p><p>[ATTACH=full]280372[/ATTACH]</p><p></p><p>TrueDof-Pro also has a setting to turn on/off factoring in diffraction. Below is the same thing with diffraction calculated in. Above was without diffraction.</p><p></p><p>[ATTACH=full]280370[/ATTACH]</p><p></p><p>BUT unless I am missing something, TrueDoF-Pro <em><strong>doesn't</strong></em> calculate for a crop factor body. In their directions it states, <em>Set the actual focal length, as printed on the lens. Do not carry out any '35mm/full-frame equivalent' conversions.</em></p><p></p><p>According to this online DoF Calculator which doesn't have the latest camera bodies listed, it too is very close to both without including diffraction. </p><p><a href="http://www.dofmaster.com/dofjs.html" target="_blank">Online Depth of Field Calculator</a> </p><p></p><p>[ATTACH=full]280371[/ATTACH]</p><p></p><p>So both apps are very close without factoring in diffraction. If you want to include diffraction, then you lose out on a true DX measurement with TrueDoF-Pro. Or use Simple Dof to calculate for both FX and DX, but you can't factor in diffraction. I just find Simple DoF much easier to dial in the settings.</p></blockquote><p></p>
[QUOTE="hark, post: 659086, member: 13196"] They do not come up with the exact measurements. I'm having trouble dialing in exactly 60 feet into TrueDoF-Pro. I either go over by 4" or at least 1" too short. But this is what I came up with as close as I could get to 60 feet: [ATTACH type="full" width="60%"]280372._xfImport[/ATTACH] TrueDof-Pro also has a setting to turn on/off factoring in diffraction. Below is the same thing with diffraction calculated in. Above was without diffraction. [ATTACH type="full" width="60%"]280370._xfImport[/ATTACH] BUT unless I am missing something, TrueDoF-Pro [I][B]doesn't[/B][/I] calculate for a crop factor body. In their directions it states, [I]Set the actual focal length, as printed on the lens. Do not carry out any '35mm/full-frame equivalent' conversions.[/I] According to this online DoF Calculator which doesn't have the latest camera bodies listed, it too is very close to both without including diffraction. [url=http://www.dofmaster.com/dofjs.html]Online Depth of Field Calculator[/url] [ATTACH type="full" width="60%"]280371._xfImport[/ATTACH] So both apps are very close without factoring in diffraction. If you want to include diffraction, then you lose out on a true DX measurement with TrueDoF-Pro. Or use Simple Dof to calculate for both FX and DX, but you can't factor in diffraction. I just find Simple DoF much easier to dial in the settings. [/QUOTE]
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