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THE FEUTEX TOOLKIT

Focus Stack Plane Count

Estimate focus steps over a subject depth with an entered overlap allowance.

Photography workspace● Runs in your browser
01 Your input
02 Your result
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FormulaStep = plane_depth*(1-overlap/100); Frames = Math.max(1,Math.ceil(Math.max(0,depth-plane_depth)/(plane_depth*(1-overlap/100)))+1)

Made for real tasks

  • Estimate focus steps over a subject depth with an entered overlap allowance.
  • Compare two scenarios by changing the inputs and rerunning the tool.
Explore step-by-step workflows →

Worked example

Inputs

Depth
20 mm
Plane depth
2 mm
Overlap
30 %

Expected results

Step
1.4 mm
Frames
14 frames

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter depth, plane depth, overlap.
  2. Use consistent units shown beside each input. Run the calculation and review the assumptions below.

Try this example

{
  "depth": 20,
  "plane_depth": 2,
  "overlap": 30
}

Accuracy and scope

Uses user-supplied usable sharp depth per plane; does not calculate lens depth of field or control a focus rail.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.