Sony Zeiss Sonnar T* FE 55mm f1.8 ZA DxOMark Score of 42

Started 7 months ago | Discussions thread
viking79
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Re: Other 50s
In reply to neil holmes, 7 months ago

neil holmes wrote:

Martin Muehlemann wrote:

LBJ2 wrote:

Sharpness comes in at 29P-mpix (tested with A7r) !

http://www.dxomark.com/Lenses/Sony/Sony-FE-Carl-Zeiss-Sonnar-T-STAR-55mm-F18

Makes the other vendors 50mm look really bad.

canon 50L has 17p and the Nikon 50 1.4g with 15p

The FE 55 "only" gets 15 on the Nex 7 (the Sony 50 1.4 gets 16 on the A850).

That is terrible that a full frame is scoring the same as the NEX 7. This is an indicator that the lens isn't so great on A850 but the lens on the NEX 7 is excellent (full frame should be much higher perceptual MP for the same sensor resolution).  This also shows why I like full frame, you get much higher resolution with same lens quality (15 MP vs 29 MP) as you should since sensor is more than twice as large.

We can easily verify this, the FE 55mm tests notably better than the A50 f/1.4 on A77 (9 MP), and even better than the very good E50 f/1.8 (13 MP) on NEX 7.

I do not think you can say then the other lenses are bad.

No, but they aren't as good Comparing the D800 with Nikon 58mm f/1.4 and A7r with 55mm f/1.8, and it is very clear that the Nikon lens doesn't perform up to the sensor. It looks like a great lens for a D4, not to maximize what the D800 is capable of.

The thing would be what the Canon and Nikon lenses score ON the A7R.,,,though it is CLEARLY a very good lens.

Eh, the Nikon 58mm f/1.4 is very over priced, the 50mm f/1.4 G is no better than the cheaper 50 mm f/1.8 G which is pretty decent on a D700 (12 MP), I have heard a lot of complaints that those lenses just aren't good enough for the D800 (start to notice with the 36 MP, or even on APS-C they aren't so hot). I have tested the 50mm f/1.4 and 1.8G on D700. They were really nice on the 12 MP camera.

Eric

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