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Archive 2018Zeiss Loxia 25mm f2.4 is a distagon

  
 
ChrisMak
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p.8 #1Zeiss Loxia 25mm f2.4 is a distagon
Another review of the new Loxia 25mm f2.4
"Sensational", "nothing quite like it on the market right now".
Anyone getting exited yet?
I am, I just sold my ZF.2 25mm f2 this week.

http://www.trustedreviews.com/reviews/zeiss-loxia-25mm-f2-4
Feb 22, 2018 at 06:45 AM
Makten
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p.8 #2Zeiss Loxia 25mm f2.4 is a distagon
ChrisMak wrote:
Another review of the new Loxia 25mm f2.4
"Sensational", "nothing quite like it on the market right now".
Anyone getting exited yet?
I am, I just sold my ZF.2 25mm f2 this week.

http://www.trustedreviews.com/reviews/zeiss-loxia-25mm-f2-4


Ummm, that lens is clearly decentered or tilted.
Feb 22, 2018 at 10:59 AM
Fred Miranda
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p.8 #3Zeiss Loxia 25mm f2.4 is a distagon
Makten wrote:
ChrisMak wroteAnother review of the new Loxia 25mm f2.4
"Sensational", "nothing quite like it on the market right now".
Anyone getting exited yet?
I am, I just sold my ZF.2 25mm f2 this week.

http://www.trustedreviews.com/reviews/zeiss-loxia-25mm-f2-4
Ummm, that lens is clearly decentered or tilted.


Agree, very evident at wider apertures which makes all the fancy charts less reliable.

This comment throws me off though and I'm not referring to the double "the".

"Clearly the the Loxia 25mm f/2.4 isn’t a lens for everybody; indeed perhaps it’s for hardly anybody."
Feb 22, 2018 at 11:26 AM
Ayoul
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p.8 #4Zeiss Loxia 25mm f2.4 is a distagon
The first 2 samples are indeed very strange. The first one (the church) is very soft on the right side, the second one (the dining / pub) on the left side.
Feb 22, 2018 at 11:29 AM
mjm6
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p.8 #5Zeiss Loxia 25mm f2.4 is a distagon
I don't know how anyone can tell ANYTHING from the sample photos in the linked article...

I feel like I have absolutely no idea how the lens renders, and clearly no clue about how sharp it is from those samples. Either they really didn't have a lot of time with the lens, or that is some of the most uninspired shooting I've seen in a lens review.

Feb 22, 2018 at 12:05 PM
GMPhotography
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p.8 #6Zeiss Loxia 25mm f2.4 is a distagon
You all wonder why I don’t read this stuff. Lol

I honestly trust maybe a few of them if that. I’ll gleefully ignore it and buy it anyway. Lol
Feb 22, 2018 at 12:25 PM
Phillip Reeve
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p.8 #7Zeiss Loxia 25mm f2.4 is a distagon
I have very little to no doubt that Zeiss has created another very fine lens. So I think they do themselves a disservice by giving early access to such ill-reputed review sites even when they have such a large reach while more or less ignoring other less accommodating sites. Pretty sure they would have nothing to fear from those in this case.
Feb 22, 2018 at 12:46 PM
GMPhotography
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p.8 #8Zeiss Loxia 25mm f2.4 is a distagon
You would think by now they would reach out to folks that are very experienced, well read , neutral and folks that really can be trusted by others. My phone is not ringing.

Of course I’m not kissing anyone’s ass either.
Feb 22, 2018 at 12:56 PM
ChrisMak
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p.8 #9Zeiss Loxia 25mm f2.4 is a distagon
Makten wrote:
ChrisMak wroteAnother review of the new Loxia 25mm f2.4
"Sensational", "nothing quite like it on the market right now".
Anyone getting exited yet?
I am, I just sold my ZF.2 25mm f2 this week.

http://www.trustedreviews.com/reviews/zeiss-loxia-25mm-f2-4
Ummm, that lens is clearly decentered or tilted.

Ah, that's what you get reading reviews on a smartphone
Thanks for taking a better look at the samples, and good to know, that also the Loxia 25mm can suffer from decentering
I found a very good copy of the Loxia 35, but also tried a very poor copy.
So no online buying, but off to the camera store with the camera once it is out.
Feb 22, 2018 at 01:03 PM
ChrisMak
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p.8 #10Zeiss Loxia 25mm f2.4 is a distagon
OK. guys, skip this review, I figured someone with the name of "trusted reviews" would certainly have a good reason to give the lens 5 stars, but only read the review on my smartphone, and normally hardly read reviews anyhow, but build an opinion of a lens in a year's use.
Good thing though: we know we'll unfortunately have to watch out for de-centered copies. Makes you wonder though about the assemblage of the Loxias....

That's what you get when you take an interest in a lens not on sale yet.
Feb 22, 2018 at 01:12 PM
Makten
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p.8 #11Zeiss Loxia 25mm f2.4 is a distagon
Well, it could also be the camera mount that is non-parallell to the sensor (or simply loose). Looks more like tilt than decentering since left and right sides are in and out of focus in different photos.
Feb 22, 2018 at 05:18 PM
Blakehfreeman
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p.8 #12Zeiss Loxia 25mm f2.4 is a distagon
I almost spit my coffee out while reading your comment! 😂 They don’t send you copies for review as they already know you’ll buy one full price! 😅

GMPhotography wrote:
You would think by now they would reach out to folks that are very experienced, well read , neutral and folks that really can be trusted by others. My phone is not ringing.

Of course I’m not kissing anyone’s ass either.

Feb 22, 2018 at 06:32 PM
pdmphoto
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p.8 #13Zeiss Loxia 25mm f2.4 is a distagon
Here is a comparison of the sizes (with hoods attached):

Looks like a Batis (18?) on the far right




Mar 07, 2018 at 12:43 AM
cantor
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p.8 #14Zeiss Loxia 25mm f2.4 is a distagon
Looking at the MTF charts for the Loxia 25 can anyone say how this might compare to the Sigma 24? Now that Sigma has a 24 for e mount, it would be nice to know how they compare.
Mar 08, 2018 at 08:43 PM
HelBen85
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Mar 09, 2018 at 01:41 AM
Steve Spencer
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p.8 #16Zeiss Loxia 25mm f2.4 is a distagon
cantor wrote:
Looking at the MTF charts for the Loxia 25 can anyone say how this might compare to the Sigma 24? Now that Sigma has a 24 for e mount, it would be nice to know how they compare.


Given Sigma's announcement of the other Art series lens, I expect the Sigma Art 24 to be very large, quite well corrected even wide open, and to have good AF. The Loxia of course is a very different lens. It is much much smaller. It is a manual focus lens and based on its MTFs it will be quite sharp even wide open and exceptionally sharp stopped down. Just based on the type of then and the size of the aperture, I would expect that the Loxia will be better to the edges and corners at wider apertures, but both will have excellent sharpness in the center even at the widest apertures for each lens and of course the Sigma has a much larger maximum aperture. I say that just because that is typical for good lenses of the types these are and I expect them to both be very good to excellent for the type of lens that they are. I would expect that most people would decide between the two lenses based on size, AF, and the maximum aperture they need/want at this focal length.
Mar 09, 2018 at 01:54 AM
philip_pj
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p.8 #17Zeiss Loxia 25mm f2.4 is a distagon
The 24/25mm region is fragmenting into fast (f1.4), moderate (f2) and slow (f2.4 on), then all must compete with the crop of f2.8-f4 zooms. CZ got the speed out to f2.4 in its Loxia in its nuggety dense Loxia series build.

Many, many differences here, no doubt including drawing style. One lens is a near-custom landscape lens of slow aperture (CZ already offers the 25/2 Batis for AF-bokeh-walk-street needs); the Sigma aims at wide open OOF/bokeh to gain its way in life. Both will try to do other things users want, the Sigma will be more successful - you can't give up 1.5 stops and have no one notice, even at 24/25mm (MFD is identical).

Sigma is almost twice the weight and size, maybe the FE 'neck tube' will save some here. The Sigma is really good, and it's good across the board - CA control, very even IQ across the frame at landscape apertures, no real focus shift, excellent bokeh - not much to complain about. It's the kind of competition Sony won't enjoy in the market, the lens goes for $850 in DSLR form. Here it is on the 50mp Canon, guaranteed to reveal problems in glaring detail:

http://www.opticallimits.com/canon_eos_ff/944-sigma24f14art?start=1

So two rather different classes of lens, both great at their specific roles. A note on measures of cross frame performance - MTF provides this metric. Interesting to compare the Loxia 21mm with the new Loxia 25mm, it appears CZ went for a super strong center for the 21mm, but wised up for the 25mm. It's a better lens, quite substantially so (less curvature, lower distortion too).

lens loss center-corner (wide open) loss center-corner (f5.6)
L21/2.8 49% 48%
L25/2.4 39% 23%

In the Imatest PZ uses, the Sigma declines center-corner by 19% at aperture of f5.6. The Loxia 25mm probably has a stronger center here (the faster Sigma peaks earlier), but even factoring that in the Sigma is no outer frame slacker.
Mar 09, 2018 at 06:12 PM
rvh23
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p.8 #18Zeiss Loxia 25mm f2.4 is a distagon
Given the internet hype about it, my experience with the Sigma 24 1.4 for landscape applications was disappointing on A7R/II, even with carefully shimmed adapters. I sometimes saw substantial CA that didn't always clean up well, and noticeably softer corners even at F8. My experience agrees with the MTF curves shown at the the digital picture (click on the drop-down box to see f8).

I would say that the Sigma is a decent lens for the money, but if you want high IQ across the entire frame, it doesn't come close to the Loxia 21 (and likely even less so the Loxia 25). Maybe if Sigma redesign a 24 specifically for Sony mirrorless it will be a more serious challenge to the Loxias, but not for now.
Mar 09, 2018 at 07:16 PM
Fred Miranda
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p.8 #19Zeiss Loxia 25mm f2.4 is a distagon
It looks like many more Loxia lenses are coming after the Loxia 25/2.4.

Mar 10, 2018 at 01:43 PM
Fred Miranda
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p.8 #20Zeiss Loxia 25mm f2.4 is a distagon
I'm not sure if this link was posted here previously but here is a review at Zeiss' website:

http://lenspire.zeiss.com/en/article/new-zeiss-loxia-2-4-25-compact-wide-angle-lens-for-photography-on-the-go/
Mar 10, 2018 at 02:15 PM
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