Reply to thread

Message

<blockquote data-quote="§am" data-source="post: 120515" data-attributes="member: 9187">Your calculations are off I'm afraid.The online calculator clearly states &quot;Use the actual focal length of the lens for depth of field calculations. &quot;Also, &quot;The calculator will automatically adjust for any &quot;focal length multiplier&quot; or &quot;field of view crop&quot; for the selected camera.&quot;Therefore, lets redo the test and use a lens which works on both DX &amp; FX without cropping (AF-S 24-85mm):Lens at 85mm f/8 focused at 25ft on a FX body (D800), total dof = 13.4ftLens at 85mm f/8 focused at 25ft on a DX body (D7000), total dof = 8.58ft</blockquote>

[QUOTE="§am, post: 120515, member: 9187"] Your calculations are off I'm afraid. The online calculator clearly states "[COLOR=#000000][FONT=Verdana][B]Use the actual focal length of the lens for depth of field calculations. " [/B][/FONT][/COLOR]Also, "[COLOR=#000000][FONT=Verdana][B]The calculator will automatically adjust for any "focal length multiplier" or "field of view crop" for the selected camera.[/B][/FONT][/COLOR]" Therefore, lets redo the test and use a lens which works on both DX & FX without cropping (AF-S 24-85mm): Lens at 85mm f/8 focused at 25ft on a FX body (D800), total dof = 13.4ft Lens at 85mm f/8 focused at 25ft on a DX body (D7000), total dof = 8.58ft [/QUOTE]

Verification