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  • Close-up
    You can use these calculators to calculate focal length, focusing distance, native extension, and more..
  • Depth of field
    You can use these calculators to calculate depth of field.
  • Design
    You can use these calculators to calculate how to design your pinhole camera.
  • Exposure
    You can use these calculators to calculate exposure for teleconverters and extension tubes.
  • Field of view
    You can use these calculators to calculate field of view (FOV) and angles of view.
  • Photography
    You can use these calculators to calculate the size of the airy disk and assesses, number of stops, golden hour, and more..
  • View angle
    You can use these calculators to calculate view angle.