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TopPhotography Photography

You can use these calculators to calculate the size of the airy disk and assesses, number of stops, golden hour, and more..

Diffraction Limited Photography: Pixel Size, Aperture and Airy Disks
The form calculates the size of the airy disk and assesses whether the system has become diffraction limited. Click on "show advanced" to define a custom circle of confusion (CoC), or to see the influence of pixel size.

How many stops?
Calculate the number of stops difference between two exposure settings - enter the values in the upper and lower marked boxes. You can compare complete exposure settings of aperture and shutter speed, or shutter speed or aperture separately.

Moon & Night Calculator for Photography
Planning is more important than ever with moon, night and astrophotography, in part because the desired conditions may only arise a few times a year. The following calculator can be used for guidance.

Photo Stitching Digital Panoramas
The following calculator demonstrates how the number of megapixels and camera lens settings change when attempting to make a stitched photo mosaic out of a scene which could have otherwise been captured in a single photograph. This could also be used to quickly assess what focal length is needed to encompass a given scene.

Photography Calculators
This page contains several calculators of use to photographers.

Sunrise & Sunset Calculator for Photography
Planning when to be on location for the right light can make a tremendous difference in your photography. The following daylight calculator can be used for guidance.

The Golden Hour Calculator / Sunrise and Sunset information for photographers
The Golden Hour (sometimes referred to as the Magic Hour) is often defined as the first and last hour of sunlight in the day when the special quality of light yields particularly beautiful photographs. Find the golden hour where you live and see how sunrise and sunset change with latitude and time of year.

Understanding Your Camera’s Hyperfocal Distance
Focusing your camera at the hyperfocal distance ensures maximum sharpness from half this distance all the way to infinity. The hyperfocal distance is particularly useful in landscape photography, and will help you make the most of your the depth of field — thereby producing a more detailed final print.

Using Camera Shutter Speed Creatively
A camera's shutter speed can control exposure, but it's also one of the most powerful creative tools in photography. It can convey motion, freeze action, isolate subjects and smooth water, amongst other abilities.

Using Tilt-Shift Lenses to Control Perspective
The tilt shift calculator below computes the angle of view encompassed by shift movements in up-down or left-right directions, along with other relevant values.