Reply to thread

Message

<blockquote data-quote="AperturePriority" data-source="post: 51493" data-attributes="member: 9275">No Jeff, it was the mistake of the guy who wrote that calculator's program. He should not apply the crop factors to the calculator for DoF.DoF of a lens is independent with the formats/image sensors you use. Your 28mm lens has the same DoF as you mount it on a DX or an FX camera. Crop factors take effect to Field of View but not to the DoF of that same lens.Thereso, if you focus at 15' with f/16, 28mm lens has the same DoF doesn't matter what camera format you mount the lens on. A Canon 5D (FX), or 1D (crop factor 1.3), or a 7D (crop factor 1.6), or a Nikon DX 1.5 will give you the same DoF with it.&nbsp;Most of the P&amp;S camera have apertures larger than f/8. But they have VERY THICK DoF, because their REAL focals are about 4.5-70mm compare to DSRL cameras have longer lens focals. A lot of photographers like to take macro photos by P&amp;S cameras because of that thick DoF come from them.</blockquote>

[QUOTE="AperturePriority, post: 51493, member: 9275"] No Jeff, it was the mistake of the guy who wrote that calculator's program. He should not apply the crop factors to the calculator for DoF. DoF of a lens is independent with the formats/image sensors you use. Your 28mm lens has the same DoF as you mount it on a DX or an FX camera. Crop factors take effect to Field of View but not to the DoF of that same lens. Thereso, if you focus at 15' with f/16, 28mm lens has the same DoF doesn't matter what camera format you mount the lens on. A Canon 5D (FX), or 1D (crop factor 1.3), or a 7D (crop factor 1.6), or a Nikon DX 1.5 will give you the same DoF with it. Most of the P&S camera have apertures larger than f/8. But they have VERY THICK DoF, because their REAL focals are about 4.5-70mm compare to DSRL cameras have longer lens focals. A lot of photographers like to take macro photos by P&S cameras because of that thick DoF come from them. [/QUOTE]

Verification