NPF is an app that attempts to make astrophotography easier.
There are several rules that can calculate the maximum shutter speed to get sharp stars, but NPF is considered by many to be one of the most effective for capturing sharp stars.
What you need to do is enter the aperture of your lens, the focal length of your lens and the pixel pitch.
The aperture and focal length of your lens are generally easy to discover, the same cannot be said for the pixel pitch.
The pixel pitch is the camera sensor's physical width in millimeters ÷ number of pixels in width x 1000 to measure it in microns.
There are several rules that can calculate the maximum shutter speed to get sharp stars, but NPF is considered by many to be one of the most effective for capturing sharp stars.
What you need to do is enter the aperture of your lens, the focal length of your lens and the pixel pitch.
The aperture and focal length of your lens are generally easy to discover, the same cannot be said for the pixel pitch.
The pixel pitch is the camera sensor's physical width in millimeters ÷ number of pixels in width x 1000 to measure it in microns.
Show More
