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Macro Effective Aperture Calculator
Online macro effective aperture calculator. Unit pupil magnification assumption.
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macro effective aperture calculator online
Use macro effective aperture calculator online for marked f number, magnification. Unit pupil magnification assumption. Geometric or data-budget estimate. Sensor behavior, processing, focus breathing and recording overhead are excluded unless explicitly modeled.
How to use it
Enter marked f number. Set magnification. Select Calculate and check the labeled output. Copy or download the JSON result.
Options and example settings
Calculation method
effective_f_number = marked_f_number*(1+magnification); light_loss_stops = 2*log2(1+magnification) (^ means exponentiation; trig functions ending in d use degrees).
Worked examples
Apply macro effective aperture calculator to the case below, keeping the displayed units and assumptions. Unit pupil magnification assumption.
Macro Effective Aperture Calculator — worked case
Settings: magnification: 1
Input:
8
Calculated result for these inputs:
Output:
{
"effective_f_number": 16,
"light_loss_stops": 2
}Choose the right tool
Exposure equivalence, depth-of-field equivalence and file storage describe different questions. Review whether a value is a focal length, a crop factor, a shutter time, a frame rate or a bitrate before calculating.
Limitations and common mistakes
- Unit pupil magnification assumption. Geometric or data-budget estimate. Sensor behavior, processing, focus breathing and recording overhead are excluded unless explicitly modeled.
- Use the displayed unit in every field. Ratios and percentages are different inputs; percent fields use values such as 25 rather than 0.25.
Frequently asked questions
How can I use macro effective aperture calculator online?
Enter marked f number. Set magnification. Select Calculate and check the labeled output. Copy or download the JSON result.
Where is my input processed?
The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.
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