Ever wonder why your astrophotos sometimes look grainy or uneven? Calibration frames are the secret weapon to clean up your images. They help reduce sensor noise, fix uneven lighting, and eliminate electronic glitches that can hide faint stars and nebulae.
There are three main types: dark frames target sensor heat noise, flat frames correct uneven illumination and dust spots, and bias frames capture electronic readout noise. Using these frames together during processing ensures your final image is sharp, balanced, and true to the night sky.
In short, calibration frames aren’t optional extras—they’re essential tools for anyone serious about astrophotography.
