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

Started 10 months ago | Discussions
LTZ470
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Re: Wow....Baby Otus almost doesn't do it justice...
In reply to ncsakany, 10 months ago

ncsakany wrote:

TrojMacReady wrote:

ncsakany wrote:

TrojMacReady 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

Calling it a baby Otus (with baby price compared to the Otus...) almost doesn't do its performance justice. Even actual transmission values appear close to identical.

There's much more to the photo than sharpness. The Otus has a rendering style that's medium format in character, something that the 55mm FE can't achieve. Don't get me wrong, I like the 55mm FE (I own it), but the Otus has a 3D feeling to it that I haven't seen in other lenses. Keep in mind that the distance between the front element and sensor determines perspective, and its diameter the DoF and far distance bokeh - the Otus is about twice the FE in both of these metrics. I have taken shots from the same location, with both lenses, using identical exposure, and the Otus has a much more noticeable clarity & pop. Sharpness was great on both, naturally, though the Otus had much more controlled fringing.

Interesting, thanks for the comments.

Would love to see your comparison shots between the two.

I'm going out this Saturday afternoon and will take fresh shots with both; will most likely start a new thread. In the meantime, here's a scene (albeit at high ISO) that illustrates the following:

- Excellent sharpness on both the FE55 and Otus 55.

- Significant fringing on the FE55, virtually non-existing on the Otus 55 (look at the lit C2 jetway sign)

- More DoF on the FE55 (look at the buildings behind the runway, and also the skyline even beyond it)

- More 3D-like rendering on the Otus 55 (look at the details on the C4 jetway doors area)

For reference, focusing was done on the UNITED logo type on the airplane in the foreground, at jetway C2. Also, image processing was done to favor the FE55, by applying Lens Profile corrections, and also removing chromatic aberrations. By contrast, the Otus 55 photo had no corrections applied. Both photos had an identical amount of luminance smoothing and sharpness applied.

FE55 photo:

Otus 55 photo, identical exposure

Amazing comparison...

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stevo23
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Re: Other 50s
In reply to captura, 10 months ago

captura wrote:

Petroglyph wrote:

MrT-Man wrote:

viking79 wrote:

leo9 wrote:

The 50mm E f1.8 OSS isn't far behind either on NEX-7:

About 15% (probably noticeable), but I wouldn't buy the ZEISS only for APS-C, the point is it covers full frame

Eric

Actually I think I'm about to pull the trigger on the 55mm FE for use on the NEX-7. The SEL50F18 is unquestionably a good lens and I'm not looking for more sharpness. I'm looking for better color/contrast, as I find the 50mm is a little lacking when I compare it to my Zeiss lenses. I'm not convinced that DXOMark scores adequately capture this metric.

Do you use the OSS on the SEL50 much? I'm hoping the 85mm FE will have OSS and have high hopes for the 24-70mm FE (I know it has OSS already). The 55mm is great on the FF cams no argument here.

As good or better a lens would be the Canon EF 85mm f1.8 IS, at about half the price. Smart adapters work very well with this for either NEX or A7.

Really? I've not been overly impressed with that lens.

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captura
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Re: Other 50s
In reply to stevo23, 10 months ago

stevo23 wrote:

captura wrote:

Petroglyph wrote:

MrT-Man wrote:

viking79 wrote:

leo9 wrote:

The 50mm E f1.8 OSS isn't far behind either on NEX-7:

About 15% (probably noticeable), but I wouldn't buy the ZEISS only for APS-C, the point is it covers full frame

Eric

Actually I think I'm about to pull the trigger on the 55mm FE for use on the NEX-7. The SEL50F18 is unquestionably a good lens and I'm not looking for more sharpness. I'm looking for better color/contrast, as I find the 50mm is a little lacking when I compare it to my Zeiss lenses. I'm not convinced that DXOMark scores adequately capture this metric.

Do you use the OSS on the SEL50 much? I'm hoping the 85mm FE will have OSS and have high hopes for the 24-70mm FE (I know it has OSS already). The 55mm is great on the FF cams no argument here.

As good or better a lens would be the Canon EF 85mm f1.8 IS, at about half the price. Smart adapters work very well with this for either NEX or A7.

Really? I've not been overly impressed with that lens.

Really. How much and where have you used it? It's been around for years and is highly considered. What difficulties did you have with it?

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captura
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Re: Sony Zeiss Sonnar T* FE 55mm f1.8 ZA DxOMark Score of 42
In reply to viking79, 10 months ago

viking79 wrote:

captura wrote:

The same Zeiss Sonnar T* FE 55mm scored 25 on the NEX-7.

http://www.dxomark.com/Lenses/Sony/Sony-FE-Carl-Zeiss-Sonnar-T-STAR-55mm-F18-mounted-on-Sony-NEX-7__736

That is about the same score as the NEX lens the OSS 50 SEL 1.8. And just slightly better than the 35/1.8.

So what is the big deal?

How well do those work on full frame? (rhetorical question, no need to answer)

Correct, but what if your goal is to use a NEX-7? (like me.) I'm asking this because there have been some attempts to get APS-C NEX owners to purchase the FE lenses.

Same with the Sigma 60mm f/2.8 (which is a lot sharper than the Sony 50mm f/1.8).

I didn't know that and will search that; thanks.

The point is this is a full frame 50mm class lens that performs well across the frame on a full frame camera. Buying the ZEISS for a NEX is not the best idea, but it is still better than the Sony 50mm f/1.8, but if you just care about sharpness on the NEX 7, the best lenses are probably the Sigma 30 and 60mm f/2.8.

Eric

I'm actually very happy with my 50SEL1.8 and it is the highest DxO-rated NEX lens of them all.

Steve

 captura's gear list:captura's gear list
Fujifilm X10 Sony Alpha NEX-7 Samsung NX1000 NEX5R Olympus M.Zuiko Digital ED 40-150mm 1:4-5.6 R +10 more
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