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

  
 
luismanibarro
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p.6 #1Zeiss Loxia 25mm f2.4 is a distagon
Phillip Reeve wrote:
luismanibarro wroteIMHO not very promising MTF curves, given the price tag...
It outperforms the Lox 21 which is one of the most appreciated WA lenses ever. How is that not promising?


Lox21? I believed Tokina Firin was way better... at least my copy appears to be a fantastic lens... and way cheaper

Tokina Firin 20/2 MTF curves at f2
Feb 14, 2018 at 05:11 AM
Phillip Reeve
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p.6 #2Zeiss Loxia 25mm f2.4 is a distagon
luismanibarro wrote:
Phillip Reeve wrote
luismanibarro wroteIMHO not very promising MTF curves, given the price tag...
It outperforms the Lox 21 which is one of the most appreciated WA lenses ever. How is that not promising?
Lox21? I believed Tokina Firin was way better... at least my copy appears to be a fantastic lens... and way cheaper

Tokina Firin 20/2 MTF curves at f2

Well, we disagree on that. You can't compare those MTF curves because they are generated with different methods.

I can recommend this paper by Zeiss to understand PDF better: https://diglloyd.com/articles/ZeissPDF/ZeissWhitePapers/Zeiss-HowToreadMTFCurves.pdf
Feb 14, 2018 at 05:24 AM
Phillip Reeve
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p.6 #3Zeiss Loxia 25mm f2.4 is a distagon
Feb 14, 2018 at 05:37 AM
LBJ2
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p.6 #4Zeiss Loxia 25mm f2.4 is a distagon
I think the Loxia 25 may just become the most popular Loxia lens yet.
Feb 14, 2018 at 05:50 AM
luismanibarro
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p.6 #5Zeiss Loxia 25mm f2.4 is a distagon
Phillip Reeve wrote:
luismanibarro wrote
Phillip Reeve wrote
luismanibarro wroteIMHO not very promising MTF curves, given the price tag...
It outperforms the Lox 21 which is one of the most appreciated WA lenses ever. How is that not promising?
Lox21? I believed Tokina Firin was way better... at least my copy appears to be a fantastic lens... and way cheaper

Tokina Firin 20/2 MTF curves at f2
Well, we disagree on that. You can't compare those MTF curves because they are generated with different methods.

I can recommend this paper by Zeiss to understand PDF better: https://diglloyd.com/articles/ZeissPDF/ZeissWhitePapers/Zeiss-HowToreadMTFCurves.pdf


Well, maybe I might not compare the MTF curves, but I already did both lenses themselves... and after carefully reading your nice reviews, checked that my tokina copy was a good one, I bought the Firin. Just a personal choice, I'm not expert at all, but I found it better than the lox21 in almost all fields. I do not follow a brand-basis formula to pick one lens, I just compare them like in a wine tasting contest, blind folding the label. Maybe there is just one field that I can not compare, reliability in long term usage.... who knows...

Oh, one little update... my local supplier's told me that lox25 is gonna be under 1000€ in my region (canary Islands), so this is way another game, maybe I'll go for it.
regards
Luis

Feb 14, 2018 at 05:52 AM
col4bin
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p.6 #6Zeiss Loxia 25mm f2.4 is a distagon
This looks like another winner. I will eventually have this in my prime kit but the 21 is more important to me now and I will have that in a week.
Feb 14, 2018 at 06:34 AM
DavidBM
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p.6 #7Zeiss Loxia 25mm f2.4 is a distagon
Hmm. Comparing the mtf at f5.6 the lox is noticeably better than the Batis....
Feb 14, 2018 at 06:52 AM
SoundHound
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p.6 #8Zeiss Loxia 25mm f2.4 is a distagon
Rather have my left hand zoom instead of focus. Exact FL and less lens changes. A bit more size and weight on the camera less in the bag.

I have do have speciality primes: Superspeed, UWA and TSE. Still prefer AF now that I have more accurate focusing mirrorless bodies. MF always an option.
Feb 14, 2018 at 06:54 AM
GMPhotography
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p.6 #9Zeiss Loxia 25mm f2.4 is a distagon
Looks good to me. The distortion is very low at .94 barrel . It’s what i figured and given that I’m guessing FC should be very low as well. I’m in
Feb 14, 2018 at 07:32 AM
GMPhotography
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p.6 #10Zeiss Loxia 25mm f2.4 is a distagon
luismanibarro wrote:
Phillip Reeve wrote
luismanibarro wrote
Phillip Reeve wrote
luismanibarro wroteIMHO not very promising MTF curves, given the price tag...
It outperforms the Lox 21 which is one of the most appreciated WA lenses ever. How is that not promising?
Lox21? I believed Tokina Firin was way better... at least my copy appears to be a fantastic lens... and way cheaper

Tokina Firin 20/2 MTF curves at f2
Well, we disagree on that. You can't compare those MTF curves because they are generated with different methods.

I can recommend this paper by Zeiss to understand PDF better: https://diglloyd.com/articles/ZeissPDF/ZeissWhitePapers/Zeiss-HowToreadMTFCurves.pdf
Well, maybe I might not compare the MTF curves, but I already did both lenses themselves... and after carefully reading your nice reviews, checked that my tokina copy was a good one, I bought the Firin. Just a personal choice, I'm not expert at all, but I found it better than the lox21 in almost all fields. I do not follow a brand-basis formula to pick one lens, I just compare them like in a wine tasting contest, blind folding the label. Maybe there is just one field that I can not compare, reliability in long term usage.... who knows...

Oh,
...Show more →

The Firin is very under estimated lens . It’s quite good actually. Sharpness is outstanding
Feb 14, 2018 at 07:35 AM
Phillip Reeve
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p.6 #11Zeiss Loxia 25mm f2.4 is a distagon
GMPhotography wrote:
luismanibarro wrote
Phillip Reeve wrote
luismanibarro wrote
Phillip Reeve wrote
luismanibarro wroteIMHO not very promising MTF curves, given the price tag...
It outperforms the Lox 21 which is one of the most appreciated WA lenses ever. How is that not promising?
Lox21? I believed Tokina Firin was way better... at least my copy appears to be a fantastic lens... and way cheaper

Tokina Firin 20/2 MTF curves at f2
Well, we disagree on that. You can't compare those MTF curves because they are generated with different methods.

I can recommend this paper by Zeiss to understand PDF better: https://diglloyd.com/articles/ZeissPDF/ZeissWhitePapers/Zeiss-HowToreadMTFCurves.pdf
Well, maybe I might not compare the MTF curves, but I already did both lenses themselves... and after carefully reading your nice reviews, checked that my tokina copy was a good one, I bought the Firin. Just a personal choice, I'm not expert at all, but I found it better than the lox21 in almost all fields. I do not follow a brand-basis formula to pick one lens, I just compare them like in a wine tasting contest, blind folding the label. Maybe there is just one field that I can not compare, reliability in long term usage.... who knows...

Oh, one little update... my local supplier's told me that lox25 is gonna be under 1000€ in my region (canary Islands), so this is way another game, maybe I'll go for it.
regards
Luis
The Firin is very under estimated lens . It’s quite good actually. Sharpness is outstanding

No doubts about that but I have the impression that a significant proportion of copies is decentered and I wasn't a fan of the rather weak flare resistance and sunstars.

Feb 14, 2018 at 07:44 AM
BastianK
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p.6 #12Zeiss Loxia 25mm f2.4 is a distagon
GMPhotography wrote:
Sharpness is outstanding

True for all Tokina lenses I have tested so far, unfortunately that alone does not make a good lens
Feb 14, 2018 at 07:52 AM
GMPhotography
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p.6 #13Zeiss Loxia 25mm f2.4 is a distagon
Phillip Reeve wrote:
GMPhotography wrote
luismanibarro wrote
Phillip Reeve wrote
luismanibarro wrote
Phillip Reeve wroteIt outperforms the Lox 21 which is one of the most appreciated WA lenses ever. How is that not promising?
Lox21? I believed Tokina Firin was way better... at least my copy appears to be a fantastic lens... and way cheaper

Tokina Firin 20/2 MTF curves at f2
Well, we disagree on that. You can't compare those MTF curves because they are generated with different methods.

I can recommend this paper by Zeiss to understand PDF better: https://diglloyd.com/articles/ZeissPDF/ZeissWhitePapers/Zeiss-HowToreadMTFCurves.pdf
Well, maybe I might not compare the MTF curves, but I already did both lenses themselves... and after carefully reading your nice reviews, checked that my tokina copy was a good one, I bought the Firin. Just a personal choice, I'm not expert at all, but I found it better than the lox21 in almost all fields. I do not follow a brand-basis formula to pick one lens, I just compare them like in a wine tasting contest, blind folding the label. Maybe there is just one field that I can not compare, reliability in long term usage.... who knows...

Oh, one little update... my local supplier's told me that lox25 is gonna be under 1000€ in my region (canary Islands), so this is way another game, maybe I'll go for it.
regards
Luis
The Firin is very under estimated lens . It’s quite good actually. Sharpness is outstanding
No doubts about that but I have the impression that a significant proportion of copies is decentered and I wasn't a fan of the rather weak flare resistance and sunstars.



Yes that’s the weakness

Feb 14, 2018 at 08:06 AM
Frogfish
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p.6 #14Zeiss Loxia 25mm f2.4 is a distagon
BastianK wrote:
GMPhotography wroteSharpness is outstanding
True for all Tokina lenses I have tested so far, unfortunately that alone does not make a good lens

I've had a few Tokina lenses over the years, all have been sharp and all have had issues with PF and flaring. Not sure if it's that Tokina coatings are inferior in some way ?

Feb 14, 2018 at 08:20 AM
philber
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p.6 #15Zeiss Loxia 25mm f2.4 is a distagon
I am ashamed to report once more that I am totally incompetent when it comes to MTF. But I would be very interested to hear what the enlightened members can say of a comparison of Milvus 25 Vs Loxia 25. Because out-performing Loxia 21 is a very promising starting point IMHO.
Feb 14, 2018 at 08:21 AM
jwhatts
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p.6 #16Zeiss Loxia 25mm f2.4 is a distagon
Man I want this. I'm gonna wait for reviews but this thing should be outstanding for architecture, landscape, and astro. That extra half stop of light really sells it for me, it'll let me stop down to 2.8 if there's any coma/chromatic aberration.

Bastian, when you or Phillip inevitably review this, could you toss in a basic astro test for those far corners? Maybe wide open and 2.8? Pretty please?
Feb 14, 2018 at 08:23 AM
LBJ2
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p.6 #17Zeiss Loxia 25mm f2.4 is a distagon
DavidBM wrote:
Hmm. Comparing the mtf at f5.6 the lox is noticeably better than the Batis....


First thing I looked at too.
Feb 14, 2018 at 08:29 AM
Phillip Reeve
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p.6 #18Zeiss Loxia 25mm f2.4 is a distagon
jwhatts wrote:
Man I want this. I'm gonna wait for reviews but this thing should be outstanding for architecture, landscape, and astro. That extra half stop of light really sells it for me, it'll let me stop down to 2.8 if there's any coma/chromatic aberration.

Bastian, when you or Phillip inevitably review this, could you toss in a basic astro test for those far corners? Maybe wide open and 2.8? Pretty please?

Just sent the mail to Zeiss and you can be certain that Bastian will test that aspect
Feb 14, 2018 at 08:31 AM
BastianK
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p.6 #19Zeiss Loxia 25mm f2.4 is a distagon
jwhatts wrote:
Bastian, when you or Phillip inevitably review this, could you toss in a basic astro test for those far corners? Maybe wide open and 2.8? Pretty please?

We have not yet figured out who will review it, but I would definetly include that and I guess Phillip as well :-)
Feb 14, 2018 at 08:31 AM
MrTMan
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p.6 #20Zeiss Loxia 25mm f2.4 is a distagon
You guys looking at the right charts? (Batis vs. Loxia). The Batis charts are shown at f/2 and f/4 in the spec sheets, while the Loxia charts are shown at f/2.4 and f/5.6.

ePhotozine has done MTF testing on both of them, and from their testing it seems like quite a close call — except for the Batis having less field curvature wide open.
Feb 14, 2018 at 08:33 AM
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