Zeiss Loxia Biogon 35/2 Review
After short and medium distance IQ analyze, I took Sony A7 and three lenses (left Planar 35/2 G at home) to see how lenses perform at infinity and overall in the real life.
First image that I took was in a slightly challenging lighting conditions.
Sunlight broke through heavy clouds showing wide dynamic range with some highlights and dead blacks. In the first comparison we can see how Loxia performs at f/2 and F/11 against its ZM version – Biogon 35/2 at same apertures.
6. Zeiss Loxia 35 f/2 Biogon vs Zeiss Biogon 35 F/2 ZM
Wide open we can see huge difference in the corner performance between the two. However, looking at the zone C e.g., we can notice some halo effect around pigeons with both lenses, but I will get back to this later.
I tried also f/11 to see if Biogon ZM can catch up in the extreme corners…
Corners with Biogon 35/2 ZM did improve, but they never get really sharp. Loxia 35/2 on the other hand, gives almost flawless image quality at this setting. (Don’t forget that those are 100% crops without any sharpening applied (beside standard Lightroom settings).
This was rather expected and from now on, I think we can exclude Biogon 35/2 ZM from further comparisons. We should agree I believe, that Loxia 35/2 Biogon delivers much better image quality in all conditions and all settings compared to Biogon ZM 35/2 when used on Sony E mount full frame camera (Sony A7 in this case).
It will be interesting to compare their performance using Leica M9 with Biogon ZM instead of the Sony, but that will be popular science comparison across systems, where sensor has a lot to do with the resulting output. There are few web pages which are trying to establish some comparison methodology across the systems, such as DxO e.g., but I’ll leave on you to consider usefulness of such efforts.
For the Sony E mount FF camera owners, it is much more interesting to see differences in comparison between small Sony FE 35/2.8 ZA and Zeiss Loxia 35/2 I believe.
I will make a short summary between the two at the end of the review, but let’s see how they compare in a real life. The same scenery as above…
7. Zeiss Loxia 35 f/2 Biogon vs Sony FE 35 f/2.8 ZA
Loxia looks much better than Sony in this case, but I believe that Sony wasn’t focused well. I used medium size flexible spot for focusing and placed it over the nautical signs bellow the bridge, which I used as a reference for manual focusing with Loxia.
I tried therefore another scene later using manual focus also with Sony FE.
Both lenses are now much closer in performance (I ensured again, that whenever I want critical sharpness at wide apertures, I do much better using manual focus), but Loxia still stays on top in all zones.
On the same image, you can also see that Sony FE 35/2.8 has much more pronounced vignetting at f/2.8, which remains stronger at all apertures. (Sony FE 35/2.8 ZA should be used with vignetting in camera correction for best results).
At f/5.6 and smaller apertures, both lenses deliver high quality images and rather even performance across the frame. FE 35/2.8 ZA still shows more vignetting though.
In terms of resolution Loxia gives most predictable and even results. Sony FE 35/2.8 might have slight edge in the center of the frame, but it lacks in the edges, especially at infinity distances. Loxia has also very well controlled vignetting and distortion that are more pronounced with FE 35/2.8. I also noticed that in comparable lighting conditions, Zeiss Loxia 35/2 Biogon has slightly warmer colors than other two, probably due to the improved coating?
Zeiss Biogon 35/2 ZM stays behind both native mount lenses by a large margin, when it comes to edge and corner performance. Everything that had been said about lens optimization for Sony E mount full frame cameras, is shown in practice, and while they share with Loxia essentially same design, the later gives tremendously better image on Sony E cameras.
If the resolution is your only merit though (it shouldn’t be), I would probably suggest Sony FE 35/2.8 instead of Loxia. The differences are very small to the point where they stop to be field relevant, and Sony FE 35/2.8 is smaller, lighter, cheaper and has auto focus.
However, there are other aspects of image quality to consider…
I’ve been waiting for this 🙂
I wanted to hear your take on the 35/2, as for some reason, I find it more compelling than the 50/2. I suppose it’s because I already have the 55/1,8 Zeiss, which is excellent, and that I favour wide angles.
Though I hope that Zeiss bring out a Loxia in the 20-30mm range somewhere, I might consider looking at this 35/2, if the rendering is nice. I don’t really need full EXIF—I can append it later, though it is quite nice to have in real-time of course.
Looking forward to seeing some images 🙂
I’m interested to know how this lens preforms on the A6000. If the sensor on the A6000 corrects cornering smearing with an angled lens on each pixel, does the Loxia 35/2 then introduce corner smearing (from essentially a double correction)? And what happens if Sony changes the sensor protection on future full frame cameras? Would this lens then only be suitable for camera models before the change happens? It might be that the cropped sensor of the A6000 is too small to give a definite answer. Perhaps comparing the corner smearing of the NEX 7 and A6000 with the Loxia 35/2 could give more useful results.
Thank you Jono for your comment. I am dealing with very bad weather here in Prague, but if I manage to catch a day or two with normal light, I will take a shot or two of the grey sky and maybe a wall or something on A6000 and NEX 7 for you. Be sure to register so that we can have your address, because I don’t want to include APS-C camera results in the official test.(Too much work for niché interest)
could you please send me the A6000 samples, too?
Thanks and best wishes from Munich
I’ll take a look if I have few shots of the ISO chart, but it was a long time ago, so no promises…
I’m also greatly interested with your result.
Hi Victor. Always a pleasure to read your opinion. I like to ask you a question. I am not sure, if you had a chance to use Voigtlander Nokton 35/1.2/ II. I ha d FE 35/2.8 and while small and sharp, it wasn’t fast enough for me. So, Voigtlander, here I came. I like the lens a lot, fast and relatively small, but is bit too heavy and I like to avoid fiddling with EXIF every time. Loxia may be the answer here, but like to get another opinion, before I sell Voigtlander. Thank you for any advice and hope to read rest of your review soon!
Hi CalBoy and thanks for your comment. I am just preparing few comparable (field) shots between Loxia 35/2, CV 35/1.2 II, FE 35/2.8 and Distagon ZM 35/1.4, so it might be perfect for you to check it by yourself. I hope to do it very soon, at least partially. My opinion is that CV 35/1.2 II is a lens that is softer wide open than other three, but it has very distinctive subject separation and I don’t mind that bit of softness in most situations. Loxia is softer too wide open at distant subjects, but they all get close around f/2.8 where FE Sonnar starts. Loxia is however not much smaller nor lighter than CV 35/1.2 II, but it is somewhat more compact and easier to handle.
I am not a big fan of those super sharp, super crispy lenses, so for me, CV is a great tool, but you can’t go really wrong with any of them. Consider speed, price and your intended use and style before you make final decision.
After you check those upcomming comparable shots, let me please know what you think.
Can’t wait to hear the continuation of your thoughts regarding this lineup of lenses (including the pricy zeiss ZM 1.4). I’ll throw in a link to your flickr for those who are eager to see results like me! https://www.flickr.com/photos/viktor_viktor
And if it’s not too much trouble, could you add an RSS feed of this site? Don’t want to miss anything!
Hi Pontus and thank you for the comment. I am working on it, but it’s been a bit hactic lately, so It might be delaeyed a bit. I will ask our IT manager about RSS feed possibility.
If you use Feedly, just add this site’s url and you can automatically generate RSS…
Hope that helps!
Thanks for help Martin 🙂
All the best,
Thanks for the tip Martin, and thanks for looking in to it Viktor!
Unfortunately i use TinyTinyRss, so I will wait for a possible RSS update to the site and continue to look out for new stuff on flickr and twitter Viktor.
Thank you one more time, especially for the last part. Similarly to you, I am kind of shallow DOF junkie. While the difference between FE 35 and Loxia wasn’t that much to my eyes, CV, at F1/4 was much, much nicer to me. As I already compared by myself FE and CV, I am afraid, I see no reason to get it at this time. I will be waiting for the predicted FE 35/1.4, but so far seems to be price/size prohibitive. I really appreciate the time you took to do this fine work, it help all of us to make more educated guess regarding this (and many others as well) lens. For me, I will stick with Voigtlander, seems like the Loxia, while a fine lens, doesn’t provide enough shallow DOF for me.
P.S. If you care to check my comparison of FE 35 and CV 35, I posted it on DPReview a while ago, under same nick (CalBoy87)
Did you have plan of review the fe16-35F4?
I wanted to, but the lens is still not available here and Sony didn’t send us testing sample on time.
I have no interest in testing it therefore, but I will probably buy it for myself and use it in some other comparative reviews. The same problem is with Sony A7II.
We would like to review Sony stuff, but they would need to send it to us prior to official release. Only that way we can ensure enough traffic to partially cover for our time and effort.
We will focus more on some other producers, but will keep using Sony for some comparative lens reviews.
Thank you very much..
Thank you very much for your review.
But I have a question, wil you review the Zeiss distagon 35/1.4 ZM on Sony A7.
thank you for your question. I am working on that review, and first part should be finished till the end of the week.
Thanks, very much for your detail review and Merry Christmas to you.
A while back we traded a few comments on some old and compact lens on the Sony camera. Just wonder if you may still have the Leica C 40mm f2 for comparison to the Loxia 35mm f2. Or maybe the Leica R 50mm summicron to the Loxia.
I have both of the lenses mentioned, but I don’t have Loxia 50/2 anymore.
It is quite hard to make field comparative shots at same conditions and thus I always have to choose just few of lenses for the review. The similar situation is with Loxia 35/2.
I can however tell you that Loxia 50/2 has more even sharpness across the frame at all apertures than both lenses, better correction of spherical aberration, higher micro-contrast (especially compared to C40/2) better flare resistance and less ghosting. Loxia 50/2 is certainly better optically corrected lens then both you asked about, with all positives and negatives that goes with. Among negatives, I am missing something special about its rendering, such as incredible center sharpness or ultra smooth bokeh, or at least Cron 50/2 swirly tendency or super compact size of Cron C40/2. It does everything very good, but nothing exceptional, and that might be blessing for most and curse for others…
When it comes to Loxia 35/2, all I wrote above stands, but there is something appealing about its rendering, probably in regard to subject isolation, so that lens is IMHO more unique. 35mm is however very different FL than 50mm and difference between 35mm and 40mm is probably more significant than difference between 40mm and 50mm, so I am not sure how much they are directly comparable.
All the best and Merry Christmas to you,
Thanks for the reply.
That gives me a really good perspective and I am looking forward to your comparison between the Loxia and the new ZM f/1.4 version.
Just re-read the whole review again, as I try to think whether this lens would be worthy of getting rid of my RX1 or not. Maybe not, but we always like a change, do we not?
I quite like the sonnar 35/2.8, for what it is. I got mine in a bundle; I probably wouldn’t have bought it separately.
Thanks for a wonderful review.
Having handled the Loxia 35 thoroughly, what would be your take on getting rid of the Sony FE35/2.8 in favour of the Loxia?
I primarily shoot with the 35mm and never use AF. I use the A7R+FE35 for architectural and interior stuff, both handheld and on tripod. I’m mainly after razor-sharp images with minimal vignetting, I guess I usually start from F8 and on, and rarely go into F2-F4 range. I also love the Zeiss ‘pop’. Would I benefit from the switch (if we omit the financial side of things) if we only look at image quality? As I’m sure the Loxia ergonomics and build quality surpass the FE35. Thanks in advance!
If you are after razor sharp images, Loxia wide open won’t make you sing. On the other hand, vignetting is really well controled. At f/2.8, you’ll had hard time to distinguish between the two with Loxia being slightly better in the corners.
It is always hard to give suggestion like this, because we all have different criteria of what’s good enough, but Loxia is great lens for many applications but not super sharp wide open. Among the benefits I would list low vignetting, great flare control, rather flat focus plane, nice micro-contrast and Zeiss colors. Put on top great build quality and nice de-click feature for video and you have very good 35mm lens for most situations.
If you want razor sharp 35mm lens from wide open, check Sigma 35/1.4 Art or my recent favorite – new Zeiss Distagon 35/1.4 ZM. The latest is damn sharp at f/1.4 already, with just extreme corners falling apart (not becuse the lens, but because the sensor cover on Sony FF E mount cameras). That is trully amazing (and very expensive) lens to own. If you don’t mind larger size, you might also wait for Sony FE 35/1.4 ZA (zeiss Distagon), which I believe will be fantastic lens too and cheaper than 35/1.4 ZM. To answer your question directly – don’t switch FE for Loxia if the sharpness wide open is one of your key criteria. Do it, if you value other attributes such as low vignetting, low distortion, better ergonomy, more even sharpness across the frame and you shot video.
thanks a lot for such a thorough response and recommendation! I definitely value the things You mentioned more than sharpness wide open, so I’ll be purchasing the lens soon. In any case, it’s a fantastic lens to own in one’s collection, comparisons aside. Again, thanks a lot and all the best!
Thanks Art and enjoy your Loxia 🙂
Just wanted to drop by and thank you again for your review and comments. Just received the lens today, played with it for a couple of hours and all I can say is that it is glorious. Not ideal by any means, but very exciting, I would call it. It provides a very old-school rangefinder kind of experience, there’s always this urge to leave the tripod and go handheld. I think its biggest upside is not the optical quality, but the reenergized experience it provides, so thanks again for your help!
Why did you fake the bokeh of the CV 35/1.2? It’s very obvious that you’ve blurred the background since we can see the edge of the applied blur. No lens gives such a smooth bokeh.
Ah, so now you switched to the real images, so that my comment should look like it was I that was wrong. Your reviews are very good, and there is no reason to make them non-trustworthy, right?
Hi Makten and thank you for your initial comment.
In the “sample images” part of the review, all images are post processed as I would normally do, which usually means – heavilly post processed. In this part of the review, it is not about RAW lens data but rather about final output that I was able to achieve.
Sometimes however it happen, as in this case, that I upload wrong version of the edited image (it also happen in the official part of the review unfortunatelly), because it simply takes lot of work to complete those reviews and I don’t have fool proof system to avoid similar mistakes.
I am always glad when my readers point out on some of potential faults, so that I can double check and post a fix if needed.
In this case, I indeed found that wrong version of the image went up and replaced it with the proper one, thanks to your initial comment, but I forgot to thank you here.
Sorry for that, you were right and your initial comment helped to fix it out.
Please be warned that I might make similar mistakes (I did in the past) even in the official part of the review from time to time, especially wrong descriptions or mixed images. We are trying at Verybiglobo to prevent them of course, but our team is very small and our possibilities are limited. Help of the community is thus highly apreciated.
Sorry if my mistake makes any inconvinience to you, and I wish you lot of great shots in the future.
Incorrect: Biogon is NOT flat field inherently. If it were, then all legacy Biogons would be perfect for A7 series. The Distagon is flat. For Loxia, Zeiss has done some nifty engineering to make the Biogon flat field for the A7. We must wait for critical reviews and tests to see if this lens lives up to its hype and price. A lens for the A7 that has no autofocus? No OSS? How can you call this specifically designed? More like specifically adapted. Zeiss needs to do more.
it’s very easy to criticize, not even reading full review. If you manage to find time to go through, you might find answers to why Loxia has significantly improved corner performance on Sony FF E mount cameras in comparison to original Biogon. (Or search for “Loxia story” here on VBL.)
I honestly doubt to see critical rewiews from respected sources, but if you value AF and/or OSS, attributes, their lack are features of this lens and not shortage, Loxia is certainly not for you. You might want to wait for the new Sony Distagon 35/1.4 ZA, go for already existing Sony FE 35/2.8 ZA or search for another option in A mount e.g. While on that, you should also look for the free review site, that will better suits your ways.
Hi Viktor, we would like to share with you a Loxia 35mm vs. Sonnar 35mm comparison we just did this weekend. Our results were independently similar to yours, but in a different format. http://ilovehatephoto.com/2015/03/03/zeiss-loxia-35mm-f2-0-vs-zeiss-sonnar-35mm-f2-8-lens-review-comparison/
Very nice review, well done. We differ in the sharpness conclusion, but there are few things to consider…
a) sample variation (as you mentioned). You could have sub par Loxia or I can have sub par Sonnar.
b) testing at different focal plane distances. Loxia is optimized for medium distances (2-5m). I don’t know about Sonnar (I can’t get in touch with their representatives on any interest) Loxia optimalization is for typical reportage/street photography. Difference in sharpness at different focal plane distance are significantly influenced by lens focal distance optimalization. Almost as stopping aperture down. But in my tests (as you can see above) Loxia was sharper at all comparable apertures even at infinity and especially corners were better from f/5.6 and smaller.
c) Testing for sharpness outside might involve some variables (sudden change of air temperature (hot wind)), or increase of moisture etc. I am facing same problems though…
Whatever the reason is for different results in our tests, I think we can agree that sharpness differences in comparison are rather field irrelevant in a real life use.
BTW, Loxia is not a modern design, in fact it is rather “classic” Biogon design (with addition of corrective optics for dealing with Sony sensor cover glass). Mr. Nasse from Zeiss confirmed that when I asked about highlight glow wide open. Sonnar 35/2.8 is modern design, optimized for sharpness at its widest aperture.
Thank you for sharing and keep good work coming.
Thank you Viktor for the great information! We are fans of your lens reviews and we hope to collaborate with you in the future.
Thanks guys. Looking forward to share our findings and conclusions.
All the best,
When I hover on the images, they only go dim. When I click on the central little circle with left/right arrows, nothing happens. I cannot also find the images taken with the FE ZA 35mm f2.8 to compare with the Loxia. I tried this in both Firefox and Chrome and same result. Am I missing something here?
you should try to click on the little circle in the middle (slider button) keep pressing mouse button an move slider left or right to reveal image bellow. It’s not ideal but it’s best tool commercially available that we were able to find. We would like to have proper comparometer, but all our efforts to find programmers ended with a too high cost estimates, over 5000 USD 🙁
I hope that you will now be able to see both images and compare them.
Regarding Loxia 35/2 vs FE 35/2.8 Sonnar, did you look at all pages of the review? There are at the end of the page tabs to go to the next chapter. You should find comparisons in the image quality part.
What are your thoughts on the way this renders compared to the 50mm Loxia?
if you ask about colors and contrast, both Loxia lenses are similar. They differ a bit in bokeh, but that is to be expected considering different focal length and optical construction.
Thanks. How about micro contrast and sharpness?
Hi Dave, I guess you have read my Loxia 50/2 review, so you might want to make your own conclusion. In my opinion they are both nice classic lenses, not bitingly sharp wide open but improving a lot when stopped down. Micro contrast is high, but not as with some more modern designs, which I personnaly like, because for portrait I don’t want too much contrast and if I shoot landscape I tend to stop the lenses to f/8 and smaller.
Hope it helps,
Thank you for your very informative lens test and comparison. – In your overview image of your test chart, I see a reddish cast in either side of the image. This is also confirmed in a crop of the area at bottom left (Area D) in comparison to all the other lenses. In the first image of the whole test chart, the Digital Color meter of my Mac gives readings of RGB=220/220/220 or close to that; in the reddish area, it says something like 203/182/176.
It may look like Zeiss has not QUITE succeeded dealing with the infamous color cast of Biogons when placed so close to a high res digital sensor – ?
Best regards – Hening Bettermann
and thank you for your kind words.
I am quite sure that in camera software correction is responsible for dealing with color shift.
Some of those corrections, including counter color mask are encoded in ARW files and they can’t be switched off. They are integral part of the Sony lens design. I am not sure how far Sony goes in sharing those software related algorithms with 3rd party producers, but I am convinced that color shift related issues are mainly software corrected and you can build the counter color mask in Photoshop for most lenses. (Selecting hue in the layer blending options)
Just my 2c.
A great review, but I question sony and zeiss sealing methods. Loxia’s have a rubber gasket, but no sealing elsewhere in the lens. Some FE lenses have sealing, but no gasket on the end. FE are also getting designed with imperfections to be corrected in post, and I would understand this if they were lighter but take the 24-70 for example, it is no lighter or cheaper than the canon equivalent. People slate canon lenses but if you compare same generation, they are often so much better than the competition.
The loxia’s look perfect to me but I am just worried about the sealing. Have you use them in dusty environments? If you get sent one to review, please can you pour water on it? I don’t suggest you do that with one you buy, lol. Why couldn’t zeiss have included sealing and a gasket, rather than sealing on one lens and gasket on the other? It is really poor
It might be a bit confusing, but Loxia lenses are supposed to be environmental (dust and moisture) sealed. Just like Canon weather sealed lenses, any lens that is weather sealed needs front filter (protective or UV) to improve sealing from the front side. (Deep lens hood helps too when possible, because it prevents water drops to stay on the filter.
New Batis lenses are also weather sealed. I asked Zeiss representative and he confirmed that Batis have sealing bellow every gap that we can see (between focus ring and body e.g.). Of course, they also need front filter to complete sealing – http://www.verybiglobo.com/zeiss-batis-25mm-f2-and-zeiss-batis-85mm2-first-impression/
I sent my test samples of Loxias back, but I wouldn’t recommend anyone to pour water on the lens. That would be very bad idea, because at the first place – Sony E cameras are not weather sealed and also – pouring water is not what most producers understand as weather or environmental sealing.
Even my best Canon lenses (big whites) might not survive direct splash of the water. If the lens drop to the river e.g., it would void the warranty and Canon will refuse to even repair it (because of possible proceeding corrosion).
Sony FE lenses, including those with Zeiss badge, are produced by Sony and Zeiss has no influence on their final appearance. They basically help Sony with computer design and they test final lenses to see if they are within projected optical specification.
At the very first place, I expect Sony to come with a weather or at least environmental sealing in the new camera releases, otherwise it won’t make much sense to have weather sealed lenses 🙂
Did you have the occasion to compare the Zeiss 35 ZM 1.4 with the Leica Summilux 35 FLE 1.4? Thanks and have a good day!
unfortunately not directly, but if the sharpness across the frame is of the concern, Zeiss looks better to me. Lux is however another outstanding lens, especially regarding contrast and colors.
I keep coming back to your site and reviews as they are so instructive! Did you finaly try the Sony FE 35mm 1.4 ZA? Comparaison with the Loxia 35 should be interesting.
I tried Sony FE 35/1.4 ZA briefly, but it is very similar to Distagon 35/1.4 ZE from my review, with a slightly better corners wide open and of course AF. As local Sony didn’t have sample for us during our test, we won’t make a separate review for it, but there are many respected sites where you’ll find useful information. We tested FE 16-35/4 ZA OSS, which is completely different beast though 🙂
Yes I own the 16-35 and it is really superb! I enjoy it very much as I shoot wide most of the time. The sharpness, rendering and colors, everything is there with the ease of use of a zoom! I’m looking for a 35 mm though with a wider aperture… Loxia 35, FE 35 1.4, Zeiss 35 ZM… I don’t mind the size of the Sony 1.4, so it might be my next choice if it’s really better than the Loxia.
Thanks a lot Viktor!
Hi Fabien, FE 35 1.4 is not really “better” than Loxia IMHO, it’s different. If you need AF and f/1.4, than it is possible option, but Sigma 35 f/1,4 Art is actually better optically corrected and cheaper too. If you don’t need AF but do f/1.4, I would rather choose Distagon 35 1,4 ZM. and if you don’t need either, I would stick with Loxia. It’s not cliché, but all those lenses are outstanding and they rather differ than better each other.
I didn’t test FE 35 1.4 thoroughly enough to make any bold statement though.
I have a problem with age related instable hands and because of this condition plan to purchase the Sony A7RII with its stabilization system. I also consider buying the Batis 25 or the Loxia 35. I would prefer Loxia because its MF brings me back to the times when AF didn’t exist and I also like MF.
I tried very hard to use MF on my RX1, but the multiplication that jumps in, shows the effect of too much hand movements and makes it difficult to reach the best MF.
I would like to know whether the MF of the Loxia on the A7RII functions better than the MF on my RX1, making it easier to get correct focusing? If not, I will buy the Batis 25.
Thank véry much for your advise!
sorry for the late reply, I was kind of busy those days. What you call multiplication (magnification of the image in the viewfinder) is a function of most Sony E mount cameras and it is called I think “focus assistant” and as such, it can be turned off. It works for all native mount lenses with electronic communication such as both – Loxia and Batis. In that regard, both lenses will behave similar and you can choose if you like that “auto magnification – focus assist function” or not.
The difference is however in lenses focusing system – while Batis is focused by “wire”, Loxia has old fashioned (but very well dampened) mechanical focusing. Personally, I would always choose Loxia above any focus by wire lens if manual focus is what I prefer (and it usually is). The tactile feeling of manual focusing Loxia is similar like with any Leica or Zeiss ZM lens.
Batis is typical modern AF lens with electronically geared transmission in MF mode (focus by wire) and as such it needs either more patient photographers or those who think that MF means manually freaked, and they never use manual focusing technique.
If you like manual focus, go with Loxia, but wait few days, Zeiss is about to announce new Loxia (among others) very, very soon!
Great review! I been looking at this lens to use with the A7ii, currently not that happy with the outcome of my camera. Have you use the milivus new line? I have 3 different systems, and buying the milvus 35mm will be great since i can use it with the nikon DF, and the sony. But if performance in the sony is not okay I rather just have the loxia, (I have already quite a few lenses for the nikon 🙂 )
I haven’t tried Milvus 35/2 on Sony A7 but I tried Distagon Classic 35/2 ZE, which is essentially same lens. This combination works fine, but so does the Loxia 35/2, which is smaller and has some sort of weather protection. I am using classic Zeiss line in Canon mount (mostly) because via smart adapter I can get full EXIF, but there is now new Nikon smart adapter, that should do the same (I haven’t tried it).
However, with all reservations to small FE 35/2.8, it’s not bad lens at all (except strong vignetting).
I don’t know what you don’t like about your images, so I can’t give you any recommendations, but you should consider FE 35/2.8 too IMHO.
Thank you so much for this detailed article. It is a pleasure to read your website.
As far as I know, Zeiss ZM Biogon is a pretty traditional opt. structure, which avoids ASPH. I heard from other experts who’s saying that A7 series sensor suffers from lens without aspherical structure. So, I really want to know if this Loxia is still better than Leica summicron 35 ASPH (with aspherical glass) attached on A7 series.
Are you guys interested in this comparison? Thanks! Please write more articles like this. You are the man.
A7 series (at least up to A7rii) had very thick sensor cover which in combination with microlens structure, caused corner problems (smearing and color casting). This shortcomming was most pronounced when lenses with symmetrical optical design, especially WA ones, when adapted.
Aspherical elements are used in order to decrease spherical aberration and astigmatism. Lenses with aspherical elemnts are usually sharper from very wide apertures then similar lenses without it. However, due to the injected mold technology used for production of aspherical lens elements (in most cases), circular highlights which are usually out of focus (bokeh), suffers from so called “onion rings”.
There is no direct link between lenses with or without asph. elements and weak corner performance on Sony A7x, but there is relation between WA lenses with symmetrical optical desing and Sony A7 cameras.
Loxia 35 is based on symmetrical Biogon ZM design, but there is additional corrective optics in its construction, specially designed for Sony A7 cameras, which drastically improves corner performance.
I haven’t had a chance to test Leica 35 asph. but I can strongly recommand Zeiss Distagon 35/1.4 ZM if you like RF lenses.
All the best,
Thank you very much for the great review. I haven’t seen anything as comprehensive as this to be honest. Looking forward to more.
Thank you Yasser for stopping by and for your kind words.
Thanks you so much for the review!
Thank you for this extensive review. I own the Zeiss Sonnar 35mm f/2.8 and I’m gathering some information about the Zeiss Loxia 35mm f/2 to determine if one lens is better than the other for my purpose, which is mainly urban landscape photography in a documentary style. My main apertures are f/8 and f/11 and I don’t mind using a manual focus lens. When I look at your sample photos, I see a difference in color rendering and it seems to me the Loxia has a slightly better T value. The Sonnar renders a scene in a rather blueish, cool way. I’m not a fan of that and I also don’t like the vignetting and distortion of the Sonnar. Of course it can be corrected, but I’d rather start off with a better RAW file. I’m not entirely sure about the differences in resolution. Can you perhaps tell me a little more about that and what lens you would prefer.