Using Fuji lenses for astrophotography

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Montanawildlives Contributing Member • Posts: 945
Using Fuji lenses for astrophotography
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I know that third-party lenses like the Samyang 12mm f/2 are very popular for astrophotography on Fuji cameras, but I'm wondering what Fuji branded lenses (I'll allow Zeiss as well) people are using for astrophotography.  Seems like they all have some limitations (e.g., 10-24 is only f/4, 16mm f/1.4 has substantial CA until stopped down, etc.), but I'm wondering anyway.

Someone in the astro forum was saying that the 27mm f2.8 was actually better in some way than a wider lens with a wider aperture (e.g., the Samyang 12mm f2) for some reason I really didn't understand...that the REAL thing to look at is diameter in relation to the aperture, so the 27mm, even though it is only 2.8, would allow more light (or more light per something or other).  Didn't understand a bit of it.

Thanks.

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