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Voigtlander 35mm f/1.2 Nokton X-mount Review

  
 
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p.1 #1 · Voigtlander 35mm f/1.2 Nokton X-mount Review


About the Voigtlander 35mm f/1.2 Nokton for Fujifilm X-mount lens:

The Voigtlander 35mm f/1.2 Nokton X-mount is part of a series of Voigtlander lenses designed specifically for Fuji X-mount cameras, optimized for Fuji's APS-C sensor, and featuring electronic communication with the camera for EXIF data sharing, including focal length and aperture information. Its optical design, using a double-gauss design, maintains a compact form while minimizing issues like distortion and lateral chromatic aberration. When used on a Fuji APS-C sensor, it delivers an angle of view and depth of field similar to a full frame 53mm f/1.8 lens.








X-E4 with Voigtlander 35mm f/1.2 Nokton


Order the Voigtlander 35mm f/1.2 Nokton for Fujifilm X-mount lens:

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Review Quick Links:

  1. Infinity performance: Voigtlander 35mm f/1.2 X-mount vs Voigtlander 35mm f/1.4 M-mount
  2. Infinity performance: Voigtlander 35mm f/1.2 X-mount vs Fujifilm XF 35mm f/1.4 R
  3. Vignetting
  4. MFD performance
  5. Rendering
  6. Distortion
  7. Sunstar Rendering
  8. Color Aberration
  9. Flare Resistance
  10. Final Thoughts
  11. Samples 1
  12. Samples 2
  13. Samples 3
  14. Samples 4



The Voigtlander 35mm f/1.2 Nokton X-mount lens was put to the test on the Fuji X-E4 camera, which is equipped with a 26MP APS-C sensor. I'll be making comparisons with the Fujifilm XF 35/1.4 R autofocus lens, the super speedy TTArtisan 35mm f/0.95 X-mount lens, and even the adapted full-frame Voigtlander 35mm f/1.4 II M-mount lenses. It's important to mention that all four lenses share a similar double-gauss optical design, resulting in a unique rendering style. Only the Fujifilm XF 35/1.4 R incorporates an aspherical element.








Similar double-gauss optical design


This particular optical design tends to exhibit some under-correction when shooting wide open but delivers exceptional performance when stopped down. It was first seen in classic lenses like the Leica 35mm f/1.4 Summilux pre-asph lenses. Throughout this comparison, my focus will be on assessing factors such as resolution, contrast, and especially rendering characteristics.








Similar double-gauss optical design


Physically, the lens is impressively lightweight and compact, measuring 59.6×39.8mm with a 46mm filter size, weighing 196g, and including a screw-in hood. It features 8 elements in 6 groups, including one exceptional partial dispersion element but no aspherical elements. It shares similar size and weight compared to the Voigtlander 23mm f/1.2 Nokton, although is slightly shorter and lighter.








Voigtlander 35mm f/1.2 X-mount | Voigtlander 23/1.2 X-mount


The lens is available in a black anodizing aluminum finish and has a φ46mm filter thread. It can focus as close as 0.3m to your subject, with a maximum reproduction ratio of 1:6.7.








Voigtlander 35mm f/1.4 II M-mount with close-focus adapter | Voigtlander 35mm f/1.2 Nokton X-mount | TTArtisan 35mm f/0.95


Main specifications:

  1. Focal length: 35mm APS-C (full frame equiv. to 53mm).
  2. Lens configurations: 6 lens elements in 8 optical groups.
  3. Angle of view: 44°.
  4. Maximum reproduction ratio: 1: 6.7.
  5. Number of aperture blades: 12 (12-point sunstars).
  6. Minimal focus distance (MFD): 0.3m.
  7. Maximum diameter x total length: φ59.6×39.8mm.
  8. Filter size: φ46mm.
  9. Weight: 196 grams (measured).
  10. Electronic communication for EXIF, Auto-magnification, Shooting distance and Parallax compensation (X-Pro3).
  11. In-body image stabilization: Yes, when supported by Fuji camera.
  12. Lens hood: Dedicated ultra compact screw-in hood included.









X-E4 with Voigtlander 35mm f/1.2 Nokton


It's important to note that, similar to other Voigtlander lenses designed for the Fujifilm X-mount, the Voigtlander 35mm f/1.2 X-mount lens provides an aperture ring for manual adjustments and supports electrical contacts to record Exif data. Additionally, it offers a focus check feature and can compensate for parallax (specifically on the X-Pro3 model). If your camera has in-body image stabilization, this lens is compatible, allowing for even more stable shots.








X-E4 with Voigtlander 35mm f/1.2 Nokton


Regarding its physical characteristics, my initial impression suggests that the lens has a robust build and a timeless aesthetic. It comes with a metal hood and a dedicated lens cap. Although it lacks a focus tab, the focus ring rotates smoothly and precisely. When activated, the focus magnification engages automatically as you turn the focus ring, which adds to its convenience. The distance markings on the lens are white and etched onto a black metal barrel, ensuring visibility in various shooting conditions. The aperture ring clicks at third-stop intervals, and the focusing ring offers a smooth and controlled rotation with just the right amount of resistance, providing a focus throw of approximately 120 degrees.



Sep 18, 2023 at 02:04 PM
Fred Miranda
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p.1 #2 · Voigtlander 35mm f/1.2 Nokton X-mount Review



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Infinity performance: Voigtlander 35mm f/1.2 X-mount vs Voigtlander 35mm f/1.4 M-mount (adapted)

The Voigtlander 35mm f/1.2 Nokton X-mount showed similar resolution compared to the adapted full frame M-mount throughout the entire image frame, however it provided slighly higher contrast, especially at wide apertures.

Here is the full image thumbnail showing the area demonstrated at 1:1 magnification.








  1. Distance: Infinity
  2. Camera: FUJIFILM X-E4
  3. Focus: Center - Best of three @ 12.4x magnification
  4. WB: Daylight
  5. Lens centered using my decentering test. My Voigtlander Voigtlander 35mm f/1.2 Nokton copy is perfectly centered.
  6. Software: Lightroom with my default landscape sharpening. All other settings set to default
PS: Vignetting and distortion were NOT corrected. All in-camera corrections turned 'off'.

___________








Notice the aperture ring rotates CCW for the native Fuji, just like with other XF lenses)




CENTER
Resolution and Contrast: Voigtlander 35mm f/1.2 X-mount vs Voigtlander 35mm f/1.4 M-mount (adapted)





Center at f/1.4: Both the Voigtlander 35/1.2 X-mount and M-mount lenses deliver similar performance. The X-mount version offers higher contrast, while the M-mount version can capture slightly more detail.







Center at f/2: Both lenses improve noticeably and are similar now.







Center at f/2.8: Interestingly, I see a decrease in performance for both lenses starting at f/2.8. I've retested this and got the same result. Likely due to focus shift.







Center at f/4: Similar to f/2.8 for both lenses.







Center at f/5.6: They improve again but more so for the Voigtlander 35mm f/1.2 X-mount.







Center at f/8: Both lenses show further improvement at f/8, which is unusual given the presence of diffraction. However, the X-mount version performs slightly better in this regard.




Sep 18, 2023 at 05:01 PM
Fred Miranda
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p.1 #3 · Voigtlander 35mm f/1.2 Nokton X-mount Review


MID-FIELD
Resolution and Contrast: Voigtlander 35mm f/1.2 X-mount vs Voigtlander 35mm f/1.4 M-mount (adapted)





Mid-field at f/1.4: Similar performance but the X-mount shows higher contrast.







Mid-field at f/2: The X-mount lens outperforms here, probably because it's optimized for the Fuji sensor stack.







Mid-field at f/2.8: Both lenses show improvement and are now quite similar, with the X-mount lens slightly ahead.







Mid-field at f/4: Both lenses perform equally well, and this aperture is likely the optimal choice for both of them.







Mid-field at f/5.6: More of the same.







Mid-field at f/8: Diffraction takes away some detail from both lenses.




Sep 18, 2023 at 05:02 PM
Fred Miranda
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p.1 #4 · Voigtlander 35mm f/1.2 Nokton X-mount Review


EXTREME CORNER
Resolution and Contrast: Voigtlander 35mm f/1.2 X-mount vs Voigtlander 35mm f/1.4 M-mount (adapted)





Extreme corner at f/1.4: Same story -- The X-mount has higher contrast while the M-mount captures more detail.







Extreme corner at f/2: Both improve but same trend.







Extreme corner at f/2.8: The M-mount improves further and now matches the contrast.







Extreme corner at f/4: Similar performance.







Extreme corner at f/5.6: Both lenses perform equally well, and this aperture is likely the optimal choice for both of them.







Extreme corner at f/8: More of the same.




Sep 18, 2023 at 05:05 PM
Fred Miranda
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p.1 #5 · Voigtlander 35mm f/1.2 Nokton X-mount Review




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Samples 1
I'm using the new Elite Cobalt Portra and Fuji profiles to enhance the image samples.






  X-E4    VOIGTLANDER NOKTON 35mm F1.2 lens    35mm    f/1.2    1/3200s    160 ISO    -0.3 EV  






  X-E4    VOIGTLANDER NOKTON 35mm F1.2 lens    35mm    f/1.4    1/11000s    160 ISO    -0.3 EV  






  X-E4    VOIGTLANDER NOKTON 35mm F1.2 lens    35mm    f/1.2    1/12800s    160 ISO    -0.3 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/1250s    160 ISO    -1.7 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/800s    160 ISO    -1.7 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/105s    250 ISO    -0.7 EV  




Sep 18, 2023 at 05:15 PM
BeatX
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p.1 #6 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Thanks for the review!
Can You show full resolution pictures?



Sep 19, 2023 at 12:48 PM
Fred Miranda
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p.1 #7 · Voigtlander 35mm f/1.2 Nokton X-mount Review



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Infinity performance: Voigtlander 35mm f/1.2 X-mount vs Fujifilm XF 35mm f/1.4 R

When compared to the Fujifilm XF 35mm f/1.4 R, both lenses have similar performance when wide open. However, when stopped down, the Fuji lens excels at the center, while the Voigtlander performs better at mid-field. In the corners, they have similar performance when wide open, but the Fuji outperforms the Voigtlander when stopped down. This difference could be due to the Fuji's use of an aspherical element, which results in better correction compared to the Voigtlander.

Here is the full image thumbnail showing the area demonstrated at 1:1 magnification.








  1. Distance: Infinity
  2. Camera: FUJIFILM X-E4
  3. Focus: Center - Best of three @ 12.4x magnification
  4. WB: Daylight
  5. Lens centered using my decentering test. Both lenses perfectly centered.
  6. Software: Lightroom with my default landscape sharpening. All other settings set to default
PS: Vignetting and distortion were NOT corrected. All in-camera corrections turned 'off'.

___________








Although the XF 35/1.4 R is larger, it's lighter by 10 grams at 186g




CENTER
Resolution and Contrast: Voigtlander 35mm f/1.2 X-mount vs Fujifilm XF 35mm f/1.4 R





Center at f/1.4: Both lenses have low contrast and provide similar resolution at f/1.4.







Center at f/2: Both lenses get better, but the XF 35/1.4 exhibits even greater improvement.







Similar to the previous infinity comparison with the CV 35/1.4 M-mount, at f/2.8, the 35/1.2 X-mount slightly loses resolution/contrast (likely due to focus shift ), while the Fuji XF 35/1.4 R keeps improving.







Center at f/4: Now, the advantage in terms of resolution and contrast is even more pronounced in favor of the XF 35/1.4 R.







Center at f/5.6: Both lenses get better, but the Fuji XF maintains its lead.







Center at f/8: Diffraction now makes the lenses appear more alike.




Sep 19, 2023 at 03:57 PM
Fred Miranda
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p.1 #8 · Voigtlander 35mm f/1.2 Nokton X-mount Review


MID-FIELD
Resolution and Contrast: Voigtlander 35mm f/1.2 X-mount vs Fujifilm XF 35mm f/1.4 R





Similar contrast and resolution levels, but the Voigtlander 35mm f/1.2 Nokton can capture more detail in this area.







Mid-field at f/2: Both lenses show improvement, but the Voigtlander 35/1.2 exhibits more dramatic improvements in comparison.







Mid-Field at f/2.8: Here we don't see the noticeable decrease in resolution and contrast for the Voigtlander lens, indicating that the resolution issues at the center are likely caused by field curvature. At mid-field and f/2.8, it is excellent.







Mid-Field at f/4: Both lenses improve further but the Voigtlander maintains its lead.







Mid-Field at f/5.6: More of the same.







Mid-Field at f/8: Diffraction takes hold.




Sep 19, 2023 at 03:59 PM
Fred Miranda
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p.1 #9 · Voigtlander 35mm f/1.2 Nokton X-mount Review


EXTREME CORNER
Resolution and Contrast: Voigtlander 35mm f/1.2 X-mount vs Fujifilm XF 35mm f/1.4 R





Extreme corner at f/1.4: The Voigtlander 35mm f/1.2 Nokton exhibits more vignetting, while both lenses display similar resolution and contrast.







Extreme corner at f/2: Vignetting improves with the Voigtlander, but the Fuji can capture more detail.







Extreme Corner at f/2.8: The Voigtlander improves greatly but the Fuji is still slightly ahead.







Extreme Corner at f/4: Both lenses optimal.







Extreme Corner at f/5.6: more of the same.







Extreme Corner at f/8: more of the same.




Sep 19, 2023 at 04:01 PM
Fred Miranda
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p.1 #10 · Voigtlander 35mm f/1.2 Nokton X-mount Review




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Samples 2
I'm using the new Elite Cobalt Portra and Fuji profiles to enhance the image samples.






  X-E4    VOIGTLANDER NOKTON 35mm F1.2 lens    35mm    f/1.2    1/2400s    160 ISO    0.0 EV  






  X-E4    VOIGTLANDER NOKTON 35mm F1.2 lens    35mm    f/1.2    1/2900s    160 ISO    -0.7 EV  






  X-E4    VOIGTLANDER NOKTON 35mm F1.2 lens    35mm    f/1.2    1/5800s    160 ISO    -1.3 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/1100s    160 ISO    -2.0 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/300s    160 ISO    -2.0 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/550s    160 ISO    -1.7 EV  






  X-E4    VOIGTLANDER NOKTON 35MM F1.2 lens    35mm    f/1.2    1/14000s    160 ISO    -1.7 EV  









Sep 19, 2023 at 04:45 PM
 


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yukosteel
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p.1 #11 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Great comparison with XF 35mm lens! One thing to remind about Fuji XF native lens - once camera is detecting which lens it is - some extra correction is automatically applied to rendering. To see the difference take a shot at F1.4, then take off the battery so lens focus/aperture remains in same position, then slightly rotate lens in mount to disconnect electronics, and power on camera by inserting battery. Without interacting with lens, image corners will be rendered much darker.


Sep 19, 2023 at 06:52 PM
Zinch
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p.1 #12 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Thanks for this review, Fred! 👍
I have the lens and I love it (it's probably my favourite lens).



Sep 20, 2023 at 04:49 AM
Fred Miranda
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p.1 #13 · Voigtlander 35mm f/1.2 Nokton X-mount Review



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Vignetting:

Because of the compact size and the ultra-fast aperture of f/1.2, the vignetting in the Voigtlander 35mm f/1.2 Nokton lens is quite prominent when you're taking photos with wide apertures. Interestingly, despite the lens having electronic transmission, it doesn't automatically correct for vignetting in the camera, as some Fuji XF lenses do. Therefore, you'll need to handle vignetting correction during post-processing, which, in my opinion, is the most effective way to address it.

To conduct this test, I used tape to cover the electronic contacts on the lens to see if there was any in-camera correction. The results showed that there was none. Below, you can compare the vignetting in images taken with the electronic contacts taped (top image) and with the lens operating as usual with electronic transmission (bottom image). As you can observe, the images appear virtually identical, with no correction for vignetting applied in the raw files.

Vignetting is notably pronounced at f/1.2, f/1.4, and f/2, but it begins to diminish at f/2.8 and is effectively corrected at f/4 and beyond.

Top image: Electronic contacts taped
Bottom image: Lens operating as usual with electronic transmission





f/1.2







f/1.4







f/2







f/2.8







f/4




Sep 20, 2023 at 04:10 PM
Fred Miranda
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p.1 #14 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Regarding optical vignetting, while specular highlights exhibit a subtle cat's-eye shape, it's not as prominent as in certain other fast 35mm lenses. Similar to the 35/1.4 M-mount lens, there isn't much swirl in the rendering, and the bokeh balls are slightly larger, thanks to the faster f/1.2 aperture.




thumbnail displaying the cropped area for analysis.







In the extreme corners of the image, you can observe the shape of specular highlights at the edges. Not pronounced optical vignetting.




Sep 20, 2023 at 04:14 PM
Fred Miranda
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p.1 #15 · Voigtlander 35mm f/1.2 Nokton X-mount Review


yukosteel wrote:
Great comparison with XF 35mm lens! One thing to remind about Fuji XF native lens - once camera is detecting which lens it is - some extra correction is automatically applied to rendering. To see the difference take a shot at F1.4, then take off the battery so lens focus/aperture remains in same position, then slightly rotate lens in mount to disconnect electronics, and power on camera by inserting battery. Without interacting with lens, image corners will be rendered much darker.


Certainly! It's fascinating that the Voigtlander 35/1.2 X lens doesn't transfer image corrections like the Fuji lenses do, even though they both have electronic connections.



Sep 20, 2023 at 05:32 PM
Juha Kannisto
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p.1 #16 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Fred Miranda wrote:
Certainly! It's fascinating that the Voigtlander 35/1.2 X lens doesn't transfer image corrections like the Fuji lenses do, even though they both have electronic connections.


I have a feeling that the CV 23/1.2 for Fuji X does transfer some image corrections including vignetting compensation as I've noticed much less vignetting on JPEGs produced in-camera vs. the ones I've produced from raw files in C1 Pro with that lens. I haven't done any detailed checking of it though.

By the way, I ended up getting the CV 35/2 Macro Apo-Ultron for Fuji X 2nd hand from Fujiya camera this week Will probably get the 35/1.2 also but later.



Sep 20, 2023 at 08:57 PM
Gabe13
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p.1 #17 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Excellent review so far! I am thoroughly enjoying the use that I am getting from my copy as well and feel overall this lens has met or exceeded my expectations. The compact size has been a breeze to travel with along with my CV 23/1.2 and 27/2 and I have been very pleased with the image rendering and quality provided by these diminutive lenses.

I recently stumbled upon your lens centration testing procedure so for better or for worse now I am curious to test my lenses including this one...let's say for fun eh


Juha Kannisto wrote:
I have a feeling that the CV 23/1.2 for Fuji X does transfer some image corrections including vignetting compensation as I've noticed much less vignetting on JPEGs produced in-camera vs. the ones I've produced from raw files in C1 Pro with that lens. I haven't done any detailed checking of it though.

By the way, I ended up getting the CV 35/2 Macro Apo-Ultron for Fuji X 2nd hand from Fujiya camera this week Will probably get the 35/1.2 also but later.


I would say this is something about the Fuji jpeg processing algorithms perhaps, as I also notice this when comparing sooc jpegs (regardless of which film simulation is used) vs raw files. The sooc jpegs with the 35mm/1.2 have no vignetting either but of course the raw files do. As far as Cosina Voigtlander states with regard to X lenses, the data communicated from lens to camera are

Exif
Focus magnifier/peaking/assist
Distance display
Image Stabilization
Parallax Compensation for X-Pro3

Enjoy that Macro! Its in my future at some point (I can never have too many macros or 30ish lenses haha)...just not in a hurry especially with my CV50mm/1.2 about to be shipped either today or tomorrow



Sep 20, 2023 at 10:06 PM
Juha Kannisto
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p.1 #18 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Gabe13 wrote:
Excellent review so far! I am thoroughly enjoying the use that I am getting from my copy as well and feel overall this lens has met or exceeded my expectations. The compact size has been a breeze to travel with along with my CV 23/1.2 and 27/2 and I have been very pleased with the image rendering and quality provided by these diminutive lenses.

I recently stumbled upon your lens centration testing procedure so for better or for worse now I am curious to test my lenses including this one...let's say for fun eh


I would say this is something about the
...Show more

Interestingly on Sony cameras there are settings in-camera that can be used to toggle lens compensation on/off for the following and I think some of the corrections (at least distortion correction) uses metadata provided by the lens in EXIF, which is also supported by CV E-mount lenses:
Shading: Compensates for the shaded corners
Chromatic Aberration: Reduces the color deviation at the corners
Distortion: Compensates for the distortion

The same corrections applied in-camera when these settings are on are also done automatically in C1 Pro when editing raw, but Distortion and Chromatic Aberration compensation are not baked-in and can also be turned off in C1 Pro as desired. I think the "Shading" correction is pretty much baked into the raw files in-camera though when set to on and can't be reversed with a single click in post.

But on Fuji X cameras (mainly referring to my X-S10) there are no such settings on the UI and I guess the camera decides silently what lens compensation to apply to jpegs and possily to raw files, and I'm wondering if EXIF for CV X-mount lenses would including any additional information to guide the lens compensation in-camera (such as a potential distortion correction profile etc.).



Sep 20, 2023 at 11:03 PM
Gabe13
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p.1 #19 · Voigtlander 35mm f/1.2 Nokton X-mount Review


Juha Kannisto wrote:
Interestingly on Sony cameras there are settings in-camera that can be used to toggle lens compensation on/off for the following and I think some of the corrections (at least distortion correction) uses metadata provided by the lens in EXIF, which is also supported by CV E-mount lenses:
Shading: Compensates for the shaded corners
Chromatic Aberration: Reduces the color deviation at the corners
Distortion: Compensates for the distortion

The same corrections applied in-camera when these settings are on are also done automatically in C1 Pro when editing raw, but Distortion and Chromatic Aberration compensation are not baked-in and can also be turned off in
...Show more

Yeah its all a bit curious...perhaps camera manufacturers have some kind of lens profiling the image processing engines pull from.

There is something similar on Fuji that is called Lens Modulation Optimizer that can be turned ON/OFF but that option only seems to be available when a Fuji X lens is mounted...with my CV and Zeiss lenses (both with electronic contacts) the option is greyed out. So it seems that these corrections are something that may be limited to first party lenses.

DXO PL6 Elite is also similar to C1Pro in that corrections are auto applied...so long as they have a lens profile available for a given lens and a user has downloaded said lens profile (optics modules) into the software and then has enabled autocorrection. My understanding is that DXO creates their lens profiles via their in-house laboratory testing so CV does not provide that data. Currently there is no DXO lens profile for the 35/1.2 but I do have one installed for the 23/1.2.


Anyways this from CV regarding their X lenses:

" Our X-mount lenses are interchangeable lenses that can be mounted directly on Fujifilm X-mount cameras without requiring a mount adapter. They are manual focus lenses with imaging circles that cover the APS-C format and feature optical designs optimized for the imaging sensors of Fujifilm X-mount system cameras.

Their lens mounts have electronic contacts to enable highly reliable electronic communication between lens and body in accordance with the information disclosed by Fujifilm Corporation. Exif information, focus checking, and display according to shooting distance are supported on bodies with the latest firmware that support electronic communication, and in-body image stabilization and parallax correction are also supported on certain models. When attached to a body that does not support electronic communication, these lenses can be used to capture images in aperture priority mode by turning the SHOOT WITHOUT LENS setting in the camera to "ON" "


With Sony E mount all that is stated by CV is the following:

" Although they are dedicated manual focus designs, these lenses have electronic contacts to ensure that lens usage data is included in the Exif data of captured images. They also have build-in distance encoders to support camera models equipped with 5-axis in-body image stabilization utilizing distance information to the subject to compensate for camera shake. Other features include being able to magnify the finder display by operating the focus ring. "


So I guess unless things are explicitly stated...it will all have to remain a bit curious I suppose?

In the end what Fuji does to jpeg processing is interesting...I first noticed something interesting with with my IR converted X-T2. When I use my CV 27mm/2.0 there is a diffuse hotspot that appears right up to f5.6 in raw data...its not a very distinct one like with other lenses but you can see it and is so "shallow" that when I process it it is not noticeable. However when I use a Fuji profile for sooc jpeg, the hotspot is completely eliminated by the processing engine.

With other lenses where the hotspot is quite pronounced (XF 35mm/2.8 macro for example)...it definitely remains when using in camera jpeg processing.

A bit off tangent yes but still a bit curious. Anyways as I said, I am very very pleased with the inclusion of this 35mm/1.2 into my kit and its image quality plus its compactness really make traveling a fun experience. I was so tired of lugging around a FF and FF lenses as we travel internationally quite a bit.



Sep 21, 2023 at 08:34 AM
Fred Miranda
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p.1 #20 · Voigtlander 35mm f/1.2 Nokton X-mount Review




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Minimal Focus Distance performance

The Voigtlander 35mm f/1.2 Nokton can focus as close as 0.3 meters, but it doesn't work well at its closest focusing distance when shooting wide open. This is because there's some residual spherical aberration in its optical design, and it lacks a floating system.

The good news is that if you stop the lens down to f/2 or f/2.8, you'll see a significant improvement in both resolution and contrast.

However, there's something to be aware of: when using the CV 35/1.2 X-mount lens at larger apertures, there's a noticeable focus shift. This isn't a problem if you're focusing at the same aperture you're shooting with. In other words, it only becomes an issue if you focus at a wider aperture and then change the aperture to f/2.8 or f/4 without refocusing.

To make this easier to understand, take a look at the example crops below:

The 100% crop images below were initially focused with the lens wide open and then stopped down without adjusting the focus:





MFD performance: f/1.2 vs f/1.4







MFD performance: f/1.4 vs f/2







MFD performance: f/2 vs f/2.8 (Here is where focus shift starts to become noticeable. The f/2.8 image should be sharper than the f/2 image)







MFD performance: f/2.8 vs f/4 (Same as above. The f/4 image crop should be way sharper)




Sep 21, 2023 at 02:45 PM
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