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Forum: Visitors' Center
03-05-2019, 12:31 AM
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Yup, Rokinon and Samyang are the same. Which is marketed where varies, but the product doesn't.
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Forum: Visitors' Center
03-03-2019, 11:03 PM
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Your best bet would be to use live view magnification to verify correct focus.
Also, with a lens as wide as the 8mm fisheye, the astrotracer will likely produce blurry corners and only allow for relatively short exposures (perhaps in the 15-30 second range). A bit of trial-and-error would definitely be the way to go in ensuring that the focus is correct, and the exposure time reasonable.
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