Questions tagged “math”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

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150

How do I crop a photo to match the field of view of a longer focal length?

mathfield-of-viewcompositioncroppingfocal-length

Daniel Jørgensen

2y ago

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2

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142

How do I calculate focal length for a 1 m × 1 m field of view at 10 m distance?

mathfield-of-viewframingsensor-sizefocal-length

Photography Stack Exchange contributor

5y ago

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121

How do I calculate a smartphone camera’s angle of view and subject distance correctly?

mathangle-of-viewsensor-sizefocal-lengthsmartphone-photography

Photography Stack Exchange contributor

7y ago

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196

How do you calculate light loss in stops from a teleconverter’s magnification?

mathaperturef-numberteleconverterexposure

Photography Stack Exchange contributor

8y ago

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2

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231

How can I estimate an object's size in pixels from its real size, distance, and camera settings?

mathfield-of-viewresolutionopticssensor-size

Photography Stack Exchange contributor

9y ago

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2

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155

How does a 1.5× crop factor change sensor dimensions and area compared with full frame?

mathfull-framecrop-factorsensor-sizeaps-c

Photography Stack Exchange contributor

11y ago

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92

Can flat-field correction be done with two 1D gain arrays instead of a full 2D table?

sensor-calibrationflat-fieldmathvignettingimage-processing

Photography Stack Exchange contributor

13y ago

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331

How does an object's apparent size change with distance from the camera?

distancemagnificationmathperspectiveoptics

Photography Stack Exchange contributor

13y ago

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2

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166

How do I calculate how far to move to keep the same framing with a different focal length?

distancemathcompositionframingfocal-length

Photography Stack Exchange contributor

13y ago

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206

How do I calculate vertical field of view from a known horizontal field of view?

mathfield-of-viewlensvideosensor

Photography Stack Exchange contributor

14y ago