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Author Topic: Nikon 50mm Lenses for D810  (Read 3847 times)

Offline A.L.Amiri

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Nikon 50mm Lenses for D810
« on: February 25, 2015, 12:20:01 am »
This a comment for this page on the website
Hello, could someone please help me understand what's going on with the Nikon 50mm lenses scores on the D810? What I mean by that is, I've spent a bit of time comparing the 1.8G, 1.8D, 1.4G and 1.4D and for the life of me I cannot understand why the 1.4D is at the top of the list between all these. Seems to me that between f/4 and f/11, the 1.8D is actually more uniformly sharp than the 1.8G and just about as sharp at that aperture as the 1.4G and in any case it has the least linear distortion out of all of Nikon's 50mm lenses and is rated at 23P-Mpix overall, higher than the rest. How can this be so and why would they not even put the 1.8D on the list? Also, when comparing the sharpness measurements (field maps) between the 1.4G and 1.4D, it seems to me that the 1.4G is actually better than the 1.4D in overall sharpness yet somehow the D got a higher sharpness score and is considered the top Nikon 50mm for the D810? Either I must be missing something obvious here, (entirely possible) or I'm just totally confused (definitely so). Would someone care to explain?

Offline Bilbo

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Re: Nikon 50mm Lenses for D810
« Reply #1 on: February 25, 2015, 05:46:02 pm »
"Sharpness" is "maximum sharpness across aperture range". It is limited my diffraction from the top.

Offline markdstump

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Re: Nikon 50mm Lenses for D810
« Reply #2 on: July 09, 2015, 02:37:20 pm »
The F/1.4 gets points for being a F/1.4 in DXoMark's overall lens rating.