Choosing the best lenses for astrophotography can sometimes be overwhelming because there are many options. But the key is understanding what makes a lens good for night sky photography.
You want wide-angle lenses (14mm–24mm) to capture big portions of the sky, especially when shooting the Milky Way. Faster apertures (i.e., f/2.8 or wider) are needed for more light and lesser exposure time so that stars come out sharp, and noise is reduced.
Prime lenses like the Sigma 14mm f/1.4 or Samyang 135mm f/2.0 are great with clarity and oppose distortion. Try cheap options like the Tokina 11–20mm f/2.8, which offers great performance for the price.
The ideal lenses should provide galaxy shots with sharpness, speed, and low-side-floor edge coma.
