Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Samyang AF 14mm f/2.8 F for Nikon announced
#1
https://www.samyanglensglobal.com/en/pro...hp?seq=389
Chief Editor - opticallimits.com

Doing all things Canon, MFT, Sony and Fuji
#2
I was expecting it to have electronic aperture control like the Canon version, but I see mechanical aperture linkage.

Not sure if they will/can also bring the 85mm f1.4 to Nikon-F, because the back element sits inside the EOS mount:
https://www.samyanglensglobal.com/upload...1559813077
#3
It looks great!!!

Ephotozine has already reviewed it....

https://www.ephotozine.com/article/samya...view-32597
#4
Weirdness. EPhotozine reviews already often show a bit odd MTF results, but this is just weird.

This lens tested in EF mount on 5DS R:
https://www.ephotozine.com/article/samya...view-31895
https://www.magezinepublishing.com/equip...222492.jpg
This is sort of as expected: Due to high res. sensor is f5.6 already affected by diffraction limiting. Stopping down from f2.8 to f4 increases sharpness.

Now the weirdness. The same lens with Nikon F-mount tested in D850:
https://www.ephotozine.com/article/samya...erformance
https://www.magezinepublishing.com/equip...509381.jpg
Similar resolution sensor... Similar peak resolution, but at f8 instead of at f4, even though f8 should be affected by diffraction softening already. Something is off with these "measurements".
#5
Agreed.
I've never trusted ephotozine reviews and measurements anyway. I'm not gonna start to trust them now.
Unfortunately there are only a handful of review sites that I trust for lenses measurements, opticallimits being one of the few :-)
--Florent

Flickr gallery
#6
Folks, please don't deep link images.
Links are Ok.
#7
Please note that there ARE differences between different sensors other than resolution - and, of course, centering.
Chief Editor - opticallimits.com

Doing all things Canon, MFT, Sony and Fuji
#8
Sample variation? Sensor stack? Who knows.
#9
Sensor stacks undoing light diffraction? Really?

Sample variation dodging light diffraction? A different sample of physics?
#10
Is this version of the 14mm AF upgrade or AF+bettet optics?
  


Forum Jump:


Users browsing this thread:
1 Guest(s)