It's 2005, and you need to capture ALL the sky!

Up until recently, this was Sigma's "newest" 180 degree diagonal fisheye lens for full frame cameras. While that's recently changed, let's take a walk down memory lane and look at this ol' thang. It's an order of magnitude cheaper, after all!
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Tracked samples were tracked using the Fornax Mounts LighTrack II. (Fervent Astronomy is Fornax's North American Distributor):
ferventastrono...
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Vetting a lens for astrophotography can be a bit of a pain, as most reviews don't dive deep into lens performance when used on the night sky. As such, I have been compelled to create lens reviews specifically for astrophotographers, which dig into lens performance in somewhat exhaustive detail - all to uncover how the lens performs on the stars.
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To download samples and read up on some of the information discussed in this video, just follow this link:
ferventastrono...
(please respect my copyright and do not distribute these samples or otherwise use them for any purposes other than personal assessment of this lens' characteristics, thanks!)
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Into astrophotography and looking for some gear? Check us out:
ferventastrono...
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Clear skies!

[@mauriciosalazar5148]

Sigma 15mm 1.4 fisheye review would be awesome 🤓

[@FerventAstronomy]

Coming Soon ™️ I have a few more fisheye tests to make folks sit through before I bring out the big guns, haha.