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<blockquote data-quote="Paliswe" data-source="post: 804963" data-attributes="member: 48977">The 24-200 mm is a Z-lens. (Nikkor Z 24-200/4-6.3)The results from my test with the rubber cubes has nothing to do with DOF. I just try to pinpoint how many cubes down the line that the lenses are moving the focus point by taking 10 pictures with 2 steps for each picture and I do no stacking on these pictures. It's just the last photo in a serie of 10 photos I have a look at.If you however do a stacking (using Zerene Stacker or similar software) then the DOF would have impact on the stacked photo and the aperture will have affect.But I suddenly realize that I have made one mistake; the number of focus steps in a series is 18, not 20. But never the less, the result is the same, different lenses moves the focus point different lengths for the same amount of focus steps. It is therefore necessary to check out each and every lens if you want to have control of the focus shift shooting.In the attached figure I have tried to illustrate that DOF doesn't matter, it's only the distance between the vertical dashed lines that matters in my test.</blockquote>

[QUOTE="Paliswe, post: 804963, member: 48977"] The 24-200 mm is a Z-lens. (Nikkor Z 24-200/4-6.3) The results from my test with the rubber cubes has nothing to do with DOF. I just try to pinpoint how many cubes down the line that the lenses are moving the focus point by taking 10 pictures with 2 steps for each picture and I do no stacking on these pictures. It's just the last photo in a serie of 10 photos I have a look at. If you however do a stacking (using Zerene Stacker or similar software) then the DOF would have impact on the stacked photo and the aperture will have affect. But I suddenly realize that I have made one mistake; the number of focus steps in a series is 18, not 20. But never the less, the result is the same, different lenses moves the focus point different lengths for the same amount of focus steps. It is therefore necessary to check out each and every lens if you want to have control of the focus shift shooting. In the attached figure I have tried to illustrate that DOF doesn't matter, it's only the distance between the vertical dashed lines that matters in my test. [/QUOTE]

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