The best lenses for astrophotography: our quick list We’ve ordered the roundup by sensor size, starting with full-frame, then moving to APS-C, then finally Micro Four Thirds. While we can’t sensibly include every suitable astro lens in this list, we’ve made an effort to regularly note alternatives to our top picks, especially when the alternatives are more affordable. Our list includes options for all the major lens mounts, including Nikon F, Nikon Z, Canon EF, Canon RF, Sony E, Pentax K, Leica L, Fujifilm X and Micro Four Thirds. For example, a fixed focal length lens is likely to be cheaper, smaller, and offer a wider maximum aperture, whereas a zoom lens is usually bulkier but affords focal length flexibility. We feel that the main differentiators concern handling rather than image quality. Quality-wise, zoom lenses have come a long way. There is a choice between zoom and fixed focal length lenses, too. Mirrorless lenses tend to perform better for corner detail than equivalent DSLR lenses when set to their widest aperture. A common downside to wide-angle lenses is the image quality fall-off in the corners, so you’ll want to pick one that holds detail well. Anything around f/1.4 to f/4 is appropriate. The size of the aperture is important too – the wider the maximum aperture, the more light is let in, which is crucial for the best possible image quality when working in low light. Even complex vertical-multi-shot panoramas capturing the Milky Way work well with a wide-angle lens in this (Britain) region. For APS-C lenses, the equivalent focal length is roughly 9-16mm, while for Micro Four Thirds you’re looking at something between 7-12mm. Many lenses in this roundup are designed for full-frame because this is the optimum sensor size for astrophotography – and the most popular focal length is around 14-24mm. ![]() ![]() How to find a great lens for astrophotography Read on to learn the best focal lengths to use, as well as the key features that an astro lens shouldn’t be without. We’ve picked out as many as fifteen excellent astro lenses here, in the hope that there’s something for everyone.īefore we get to our list, we’ve put together a quick how-to on choosing the right lens for your astrophotography. When choosing a lens, the circumstances of your camera system, as well as its sensor size will determine your choices to some extent. (See our guide to the best cameras for astrophotography if you don’t yet have yours.) Different lenses fit different lens mounts, and some lenses only work with certain sensor sizes.
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