Return of Interesting article on DxO about 5D III and D800...

Started Apr 10, 2013 | Discussions thread
Mako2011
Mako2011 MOD
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In reply to John Sheehy, Apr 11, 2013

John Sheehy wrote:

Dave Luttmann wrote:

John Sheehy wrote:

Mako2011 wrote:

You seem to be mixing terms and describing sharpness but calling it resolution.  Resolution only describes how much detail a camera/lens is capable of capturing — and not necessarily the quality of the detail that is captured. The problem, in these types of discussions, is that folks keep mixing related terms an using them to describe inaccurately a concept

Did you actually read my post?  It seems very unlikely, given your response.

It seems he read it perfectly.  The second you try to discuss "both types of resolution".... Your discussion was over.  There is only one type of resolution.  And one type of acutance.  You seem to miss that simple distinction.

Perhaps you both need to go back and read it again.  The two types of resolution were "per mm of sensor area", and "per sensor".  I introduced the post by referring to disagreements in the previous thread about which of these "resolution" refers to.  My point is that they are both measures of resolution.

Image resolution can be measured in various ways. Basically, resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, TV lines, or TVL), or to angular subtenant. Line pairs are often used instead of lines; a line pair comprises a dark line and an adjacent light line.

The two types of "resolution" you're speaking of...are are more related to the concept of sharpness and not resolution.  I've not seen any resolution measurements in units of per sensor or pmmsa (per mom sensor area)

My opinions are my own and not those of DPR or its administration. They carry no 'special' value (except to me and Lacie of course)

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