Free 500 Rule Calculator (for Astrophotography Long Exposures)

The 500 Rule for Astrophotography is a quick and simple way to work out the exposure time you should use on your camera settings when taking a photo of the night sky. You can use our free 500 Rule Calculator here: How to Use the 500 Rule Calculator You need to enter two pieces of … Read more

Free NPF Rule Calculator (for Sharp Stars in Night Sky Images)

The NPF Rule can be used to work out the ideal exposure time for photographing the stars and Milky Way in the night sky based on the camera and lens you are using. Use our free NPF Rule Calculator here: How to use the NPF Rule Calculator You need to enter three pieces of information … Read more