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Forum: Pentax SLR Lens Discussion
04-16-2019, 02:02 AM
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As for your 20-mil Samyang, I concur with what several other posters have noted: centring seems fine, and considerable fall-off towards the corners of resolution, contrast, and brightness levels is only to be expected wide open. Enough of which could probably be mitigated by careful post processing. DxO offers correction profiles for a fair number of Samyang lenses, I recall, so they might well come up with one for that particular lens eventually (particularly, when they deem there to be sufficient demand for it).
BTW, F1.8 on an ultra-wide is not exactly the most likely use scenario for landscapes (nor even astro, I imagine)? If F5.6 to F11 looked meh, I would be much more concerned.
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Forum: Pentax SLR Lens Discussion
04-15-2019, 12:13 PM
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Indeed. This is such a saddening sight. Hopefully, they can at least rescue some of it. Rooting for the firefighters, and hoping no one comes to harm.
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