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Photozone tests the 24mm f2 Zeiss ZA on APS-C
- Thread starter auksnapper
- Start date
That's a piece of glass!!! I'm drooling
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Rod
carljervis
Veteran Member
So, if canikon owners continue to say that Sony Zeiss is rebadged Sony, then is it one heck of a compliment to Sony techs?
samhain
Veteran Member
Those MTF numbers are insane! A rare level of perfection indeed. Looking forward to the FF test.
auksnapper
Leading Member
Nordstjernen
Veteran Member
Two comments:
1)
When using this lens with a FF/high megapixel count camera, images doesn't have to be enlarged that much, which ensures an even higher technical image quality than the very good test results indicates.
2)
For handheld low light photography light falloff at wide aperture settings doesn't really matter, since shallow depth of field wil make everything except the subject out of focus. For tripod work using wide aperture settings seems like a contradiction.
I have said this before, but I repeate: The Zeiss 24 mm f:2 is my favourite lens!
1)
When using this lens with a FF/high megapixel count camera, images doesn't have to be enlarged that much, which ensures an even higher technical image quality than the very good test results indicates.
2)
For handheld low light photography light falloff at wide aperture settings doesn't really matter, since shallow depth of field wil make everything except the subject out of focus. For tripod work using wide aperture settings seems like a contradiction.
I have said this before, but I repeate: The Zeiss 24 mm f:2 is my favourite lens!
Edward Karaa
Veteran Member
I would add that PZ test is done at a very close distance. In my experience, vignetting is much lower in normal shooting distances. In fact, low vignetting is one of this lens forte.
A900 ZS 35/2 50/1.4 ZA 24/2 85/1.4 135/1.8 SA 100/2.8 Macro
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A900 ZS 35/2 50/1.4 ZA 24/2 85/1.4 135/1.8 SA 100/2.8 Macro
Klaus Schroiff
Leading Member
The vignetting tests are performed at infinity focus.
Please no guessing here.
Klaus
photozone.de
Please no guessing here.
Klaus
photozone.de
gianlucaficociello
Well-known member
Why no example photos and bohen test like 24 canon and nikon Klaus?
Edward Karaa
Veteran Member
Sorry, I wasn't aware of that. I was just trying to understand why the vignetting is so high at f/2 in your test, while I do not observe it in my own photos.
If you would allow me a couple of questions:
I noticed that you consider the ZA to produce better results than the competitors at comparable apertures. I assume you are talking about the Canon and Nikon 24/1.4. However, in your reviews, these 2 lenses achieve mostly higher resolution marks than the ZA. I would be interested in hearing your point of view.
Also the excellent, and other ratings thresholds seem to be the highest for Nikon and the lowest for Sony. It is therefore easier for the ZA to achieve an excellent rating (it does get excellent center, border and corners at f/5.6 and f/8) and more difficult for the other 2. That is certainly a point that I would love to understand.
Thanks,
Edward
A900 ZS 35/2 50/1.4 ZA 24/2 85/1.4 135/1.8 SA 100/2.8 Macro
If you would allow me a couple of questions:
I noticed that you consider the ZA to produce better results than the competitors at comparable apertures. I assume you are talking about the Canon and Nikon 24/1.4. However, in your reviews, these 2 lenses achieve mostly higher resolution marks than the ZA. I would be interested in hearing your point of view.
Also the excellent, and other ratings thresholds seem to be the highest for Nikon and the lowest for Sony. It is therefore easier for the ZA to achieve an excellent rating (it does get excellent center, border and corners at f/5.6 and f/8) and more difficult for the other 2. That is certainly a point that I would love to understand.
Thanks,
Edward
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A900 ZS 35/2 50/1.4 ZA 24/2 85/1.4 135/1.8 SA 100/2.8 Macro
Nordstjernen
Veteran Member
I think vignetting doesn't matter for most subjects when using bright lenses wide open with a FF camera.
For real life work the Zeiss 24 mm f:2 is way better than the Zeiss 24-70 mm zoom at 24 mm when it comes to corner sharpness and vignetting. I could live with the lack of corner sharpness of the zoom lens, but I struggeled with the amount of vignetting at widest setting -- even when stopped down to f:8. With the 24 mm f:2 vignetting is kept well under control, though visible at widest aperture settings -- as expected.
For real life work the Zeiss 24 mm f:2 is way better than the Zeiss 24-70 mm zoom at 24 mm when it comes to corner sharpness and vignetting. I could live with the lack of corner sharpness of the zoom lens, but I struggeled with the amount of vignetting at widest setting -- even when stopped down to f:8. With the 24 mm f:2 vignetting is kept well under control, though visible at widest aperture settings -- as expected.
This is an interesting question. If you just read the review, you get the idea that this zeiss is superior to canon or nikon, but if you look at the numbers, it doesn´t seem that goo in comparation. Maybe it´s because I don´t know how to compare those resolution numbers properly.
I think the absolute numbers depends on the software and the AA filter.
So you can only compare the "curves": How "high" is the center compared to the theorical maximum and how "high" the borders are compared to the center.
http://flickr.com/ephankim
http://photo.net/photos/eric.phan-kim
So you can only compare the "curves": How "high" is the center compared to the theorical maximum and how "high" the borders are compared to the center.
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http://flickr.com/ephankim
http://photo.net/photos/eric.phan-kim
Of course I read that long ago, and if that´s true, result from d3x and a900 are quite comparables because they share sensor. So, this zeiss 24 is not better than nikon´s counterpart apart from CA and edge sharpness. I don´t understand why they say: ""The Zeiss Distagon T* 24mm f/2 SSM may not be as fast as its Canon and Nikon counterparts but it's capable of delivering a substantially better image quality at comparable aperture settings.""
Tony Beach
Veteran Member
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Apparently, you cannot accept that the Zeiss is better in the corners and has less CA there than the Nikkor, so you dismiss it.
In part because the Zeiss is better in the corners and has less CA there. It's not just the corners either, but everything outside of the center of the image circle, and you can see that very clearly by comparing the APS-C reviews of these two lenses (the center of the Zeiss is off the charts at f/4 while the Nikkor isn't off the charts at that same aperture). In the Verdict section of the APS-C/DX reviews they say:
- Zeiss: "The low level of CAs helps to boost the subjective sharpness perception even further." Nikkor: "CAs are moderate."
- Zeiss: "bokeh fringing (LoCAs) is also very well controlled." Nikkor: "LoCAs are present at larger apertures."/
- Nikkor: "The bokeh is very smooth and actually pretty much outstanding for a wide angle lens." Zeiss: "The quality of the bokeh is very good for such a kind of lens (albeit average in absolute terms)"
Next up, the fast 50mm primes; then the fast 85mm primes; and then the fast 135mm primes. In every instance the Sony mounted lenses have image stabilization. Looking at the 85mm and 135mm Zeiss primes, it's hard to argue that Sony doesn't have a significant edge over all the other systems when using those lenses. My one niggle with the Sony/Zeiss lenses is that there are no gaskets on their mounts.
I don´t have problems accepting anything. The problem is that I see two similar lenses in the numbers, but if you read the review and don´t look at the numbers it seems that they are not talking about those 24 mm lenses...
markhsu
Well-known member
I do not have this lens and am not a SONY user, but in the test result and real life samples, I think Zeiss 24mm f2 is a winner compared with other brands. Now, Sony has the best 24, 85, and 135mm primes. I am still waiting new 35 and 50, then switch to SONY. HAHA.
Tony Beach
Veteran Member
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I suspect it boils down to two sentences from the Verdict section of the APS-C review of the Zeiss 24/2: "The lens is exceedingly sharp across the image frame starting straight at f/2 till f/8. The low level of CAs helps to boost the subjective sharpness perception even further." It seems that the reason Photozone likes the Zeiss better than either the Canon or Nikon fast 24mm primes is better control of CAs and better across the frame sharpness -- and if you look closely at the numbers in the "Full Format" reviews, you will see that (although admittedly, the numbers taken in isolation do not make it readily apparent).
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