Photography

• Depth of Field Calculator — Enter the focal length, aperture, subject distance and sensor format to see how much of the scene will be in sharp focus.
• Hyperfocal Distance Calculator — Enter the focal length, aperture and sensor format to find the hyperfocal distance.
• Field of View Calculator — Enter the focal length, sensor format and, optionally, the subject distance.
• Crop Factor Calculator — Pick the sensor format and enter the focal length (and, optionally, the aperture) to see the full-frame equivalent.
• Flash Guide Number Calculator — Choose what you want to find and enter the other known values for your flash.
• ND Filter Calculator — Enter your unfiltered shutter speed and pick the ND filter strength to see the new long-exposure shutter speed.
• Equivalent Exposure Calculator — Enter the original exposure, what you're going to change, and which of the other two fields should be recalculated.
• Print Size Calculator — Choose whether to calculate the maximum print size from your image, or the megapixels needed from your target print size.
• Astrophotography Exposure Calculator — Pick the rule, enter the focal length and crop factor (and, for the NPF rule, the aperture and pixel pitch).
• Timelapse Interval Calculator — Pick the calculation mode and enter the event duration, video frame rate and target duration (or the shot interval).
• Handheld Shutter Speed Calculator — Enter the focal length, crop factor and image stabilization to find the minimum safe handheld shutter speed.