Kitty Singsuwan

Photography

Is the Sigma 24-70 mm f2.8 (for Sony E-mount) good enough for astrophotography?

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I know what you’re thinking: why would I even consider using a zoom lens for astrophotography?

Well, let’s just say I’m still researching primes, and wondering if want to carry yet another lens on hours-long hikes…

Plus, you can a lot with a 24-70 mm, why not try it for astro?

Anyway, I finally put the Sigma 24-70 mm f2.8 DG DN II through a true, low-light test. As you can see, this lens is good enough for astrophotography.

Star trails at John Glenn Astronomy Park | Kitty Singsuwan
Star Trails at John Glenn Astronomy Park | © Kitty Singsuwan

All the things we love about Sigma – bang-for-your-buck clarity, sharpness and color accuracy – shines through. It was no different than working with a prime for astrophotography. What Sigma delivers for the price, is phenomenal.

And the things we don’t really like about Sigma – weight, limited frame rates, barrel distortion… Well, that can be tolerated, or corrected in post 😉

Now, I said this lens is good enough for astrophotography. I didn’t say it was great.

As far as astrophotography goes, I have 2 downsides:

  • the f2.8 was fast, but not quite fast enough. If you plan on shooting a lot of astro, I would consider an f1.2 or f1.4 for maximum light gathering.
  • at its widest, 24mm probably isn’t wide enough. You may want something wider for astro.

So yeah, if you’re an occasional astro shooter, the 24-70 mm will do the job. If you plan on shooting astro every chance you get, I would consider something helps you dial in.

Until next time,
K

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