The difference in resolution is probably imperceptible in real world
use, even on a demanding sensor such as that in the K-3, you don't
mention distortion, the 14mm displays noticeable barrel distortion on
APS-C, I don't know about the 16mm, haven't looked at that too much.
The other question is do you need that extra stop wide open for
focusing, these are manual focusing lenses, that the 16mm give you?
On 6/26/2015 11:36 AM, Darren Addy wrote:
Normally, I dislike seeking opinions on This vs That, because I figure
one should do their own research and not "outsource their brain" on
such matters. However, on this one I've done my research and I'm still
torn. I would be using this lens for night sky stuff (aurora, meteors,
mostly). I live at 41N latitude so normally my Sigma 30mm f/1.4 is
what I will use, but the recent aurora outburst surprised me by
surpassing the FOV I have with that lens. I don't want to get caught
in that situation again.
I have a Sigma EX 10-20mm f4-5.6 that I happily use for daytime
ultrawide, but it is possible that this new lens would ALSO have use
in that scenario in lowlight also. (I like to do severe storm
photography and it often gets very dark under them, even in daylight
hours.) So that usage is of secondary concern, but for THAT I would
definitely prefer the extra wide FOV of the 14mm over the 16mm.
It appears that the 14mm outperforms the 16mm in CA:
16mm:
http://www.ephotozine.com/articles/samyang-16mm-f-2-0-ed-as-umc-cs-lens-review-22335/images/highres-Samyang16mmCA_1373266588.jpg
14mm:
http://www.ephotozine.com/articles/samyang-14mm-f-2-8-ed-as-if-umc-lens-review-19621/images/highres-Samyang14mmCA_1341302313.jpg
But on resolution, the 16mm seems to outperform the 14mm (and I shoot on a K-3)
16mm:http://www.ephotozine.com/articles/samyang-16mm-f-2-0-ed-as-umc-cs-lens-review-22335/images/highres-Samyang16mmMTF_1373266691.jpg
14mm:http://www.ephotozine.com/articles/samyang-14mm-f-2-8-ed-as-if-umc-lens-review-19621/images/highres-Samyang14mmMTF_1341302315.jpg
However, with aurora, a shorter exposure is more important than
resolution because the longer you leave the shutter open the less
resolution you are going to get with the aurora "motion". So the f/2
would be advantageous.
Anyone with Real World experience with one or the other? At this
point, I'm leaning slightly towards the 16mm f/2
--
I don't want to achieve immortality through my work; I want to achieve
immortality through not dying.
-- Woody Allen
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