Images produced using the 14mm f/2.4 are supremely sharp from center to edge, even wide open. You will still need to composite in a foreground image but. The lens is manual focus only, but handles very nicely via a smooth and well-dampened rubber focus ring, making it well suited to astrophotography. Think about this, if you don't have to worry about star trails because you're tracking, then an f/4 exposure at ISO 400 becomes realistic and potentially a better result. The f/4 helps with focusing too as you don't have to be as precise.īut that said, AF is like the least important thing to any astrophotography, so these less expensive lenses like the Irix Firefly 15mm f/2.4 would be a great Milky Way lens and you would have money left over for a star tracker (there are several that are in the $200-$400 range) that will open up more types of astrophotography beyond the Milky Way. If your camera lets you use a higher ISO, you can use a smaller aperture, so the 14-30mm f/4 would require you to go to 6400, which is well within the Z 6's capability. I shot some stuff yesterday on my Z 6II at quite high ISOs (12,800) and I was very impressed by how low the noise was.Ī standard Milky Way formula calls for 14mm f/2. Star trails can be done at utlra-wide angles, but it's not quite dependant on them and f-stop really doesn't matter. Most other astro subjects needs normal to super-telephoto lenses. I'm going to assume when you say "astrophotography", you mean Milky Way shots.
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