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Thypoch Simera 50mm f/1.4 ASPH. Review

  
 
Fred Miranda
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p.10 #1 · Thypoch Simera 50mm f/1.4 ASPH. Review


philip_pj wrote:
From Jack Wang's review of the Simera 50/1.4, a side-by-side lens cut of the earlier Summilux and the Simera lens, showing the rather different element shaping, thickness and arrangement in these eight element lenses: two doublets instead of three, as well as the front location of the floating element grouping.


The official optical design for the Leica 50mm f/1.4 Lux (11892) looks quite different from what you posted, including the floating group.

Here are the Simera and Leica official optical designs again:

(It's definitely not the same, but since the Leica is an older design, let's assume it served as inspiration for the new Simera's. From the output, I see it as an even more refined design)







Nov 11, 2024 at 08:29 PM
RustyBug
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p.10 #2 · Thypoch Simera 50mm f/1.4 ASPH. Review


Fred Miranda wrote:
The official optical design for the Leica 50mm f/1.4 Lux (11892) looks quite different from what you posted, including the floating group.

Here are the Simera and Leica official optical designs again:

(It's definitely not the same, but since the Leica is an older design, let's assume it served as inspiration for the new Simera's. From the output, I see it as an even more refined design)


The main diff I notice is the last element group ... Lux is using convex / concave vs. the Simera using convex / (slight) convex. So, definitely not a direct copy, but certainly the inspiration is easy to spot.



Nov 11, 2024 at 08:40 PM
Steve Spencer
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p.10 #3 · Thypoch Simera 50mm f/1.4 ASPH. Review


nehemiahphoto wrote:
I ordered the lens out of curiosity and because it had an optical lens very similar to the 35 Lux FLE. The bokeh seems to be smother, both in structure and because it's lower contrast from what I could tell, though I did not compare them directly.

One thing about the 35/1.4 Simera, when it's as soft (as in low contrast, resolution is fine), and with the short focus throw from .7 to infinite, cramped focus ring because of the Bolox, it's really easy to misfocus. I have been using EVF to MF fast lenses since the a7 I purchased at
...Show more

I am also really interested in how the 75 f/1.4 will render as well. In the Simera C cine version with the heavier cine housing it comes in at only 450g. I would expect it to come in at about 350g in a regular stills housing, which would make it really interesting from a size and weight perspective for a 75 f/1.4. If it renders like this 50 f/1.4 or close, I would be very interested.

I am less interested in the 21 as I am a big fan of the Voigtlander 21mm and how it renders. If I want a fast 21, then for my tastes a wonderful and small enough one already exists.

Thanks for nudging me toward a modded sensor. I am sure I will do it at some point. On one hand, it would make sense to do it soon and I could start building the kit I really want. On the other hand, I probably should wait until I get a second stock Sony that I wouldn't modify for my AF lenses. My current MF kit that includes the CV 21 f/1.4, 40 f/1.2, 50 f/2 APO, and Loxia 85 f/2.4 all for the stock sensor is quite nice, but there are still several Leica M mount lenses I would really like to use but they suffer on the stock sensor. It will all work out in time. I just need to be patient and content with what I have for now.



Nov 11, 2024 at 08:53 PM
Steve Spencer
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p.10 #4 · Thypoch Simera 50mm f/1.4 ASPH. Review


philip_pj wrote:
From Jack Wang's review of the Simera 50/1.4, a side-by-side lens cut of the earlier Summilux and the Simera lens, showing the rather different element shaping, thickness and arrangement in these eight element lenses: two doublets instead of three, as well as the front location of the floating element grouping.



Mystery solved where Jack got that diagram. It is actually from the 50 cron APO. Here is the link to the Leica data sheet for the 50 cron APO:

https://www.summilux.net/m_system/objectifs/ApoSummicronM50Asph.pdf



Nov 11, 2024 at 09:47 PM
rji2goleez
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p.10 #5 · Thypoch Simera 50mm f/1.4 ASPH. Review


Back to sample shots contributed by FM members


My Grandson

Sony A1 + Techart LM-EA9 + Simera 50/1.4







Nov 11, 2024 at 10:31 PM
1bwana1
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p.10 #6 · Thypoch Simera 50mm f/1.4 ASPH. Review




rji2goleez wrote:
My Grandson

Sony A1 + Techart LM-EA9 + Simera 50/1.4


Very nice!



Nov 12, 2024 at 12:36 AM
philip_pj
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p.10 #7 · Thypoch Simera 50mm f/1.4 ASPH. Review


I have no idea how the Summ design mixup came about. I took that post down, to help keep the thread clean. I now clearly see why the lens is derivative, hence the similarities. I'll look into it. The two design cuts above certainly have physical differences in all elements, some quite radical. It seems the 11891/11892 are the same series, the 2004 lens you have. And it's clear very little was altered physically in the 2023 release. See Jono Slack's review:

https://www.slack.co.uk/leica_50_2023.html

Thanks for the portrait, very important to push this one into the zone. I wonder when they intend to release the 75/1.4, probably first in M-mount? I agree the weight savings over the cine lens will be very worthwhile, and the bokeh from the 50mm is confidence inspiring to me. B&H special is still on.



Nov 12, 2024 at 12:45 AM
rscheffler
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p.10 #8 · Thypoch Simera 50mm f/1.4 ASPH. Review


Maybe I missed it, but how easy is it to 6-bit code this lens? Does it have the slight groove in the lens mount so the paint/ink doesn't rub off after a few uses? Or does it actually have the full 6-bit engraving often seen with M-mount lenses coming out of China waiting for the user to mark accordingly?


Nov 12, 2024 at 01:40 AM
rji2goleez
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p.10 #9 · Thypoch Simera 50mm f/1.4 ASPH. Review


rscheffler wrote:
Maybe I missed it, but how easy is it to 6-bit code this lens? Does it have the slight groove in the lens mount so the paint/ink doesn't rub off after a few uses? Or does it actually have the full 6-bit engraving often seen with M-mount lenses coming out of China waiting for the user to mark accordingly?


I have 6-bit coded my copy to the Summilux ASPH (11891). I used a simple stencil and an fine line paint pen. There is a slightly recessed area on the mount as you can see in the photo. So far, it's been working flawlessly. And while I have dismounted the lens only a few times, it really hasn't left my camera that much!






Edited on Nov 12, 2024 at 07:34 AM · View previous versions



Nov 12, 2024 at 07:28 AM
rji2goleez
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p.10 #10 · Thypoch Simera 50mm f/1.4 ASPH. Review


A review of the Simera 50/1.4 on 35MMC. A very positive review not nearly as in-depth as Fred's. It's the kind of review I would likely do myself which is to go out and take some photos. That being said, I love Fred's (and Bastian) reviews.

https://www.35mmc.com/12/11/2024/thypoch-50mm-1-4-simera-review-a-high-spec-rangefinder-lens/



Nov 12, 2024 at 07:33 AM
 


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Fred Miranda
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p.10 #11 · Thypoch Simera 50mm f/1.4 ASPH. Review



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Resolution and Contrast at 2m distance: Simera 50mm f/1.4 vs Leica 50mm f/1.4 Summilux

When assessing resolution and contrast at infinity, the Leica lens shows slightly better performance at the center and extreme corners, while the Simera lens excels at mid-field, especially at wider apertures. Over the years, I’ve primarily tested the Leica 50mm f/1.4 Lux at infinity, where the mid-field often shows a noticeable dip in performance. However, in real-world scenarios with subjects 1 to 3 meters away, this hasn’t been an issue. Although the mid-field isn’t as strong as the center, it hasn’t posed a significant concern.

Given the Simera’s superior mid-field performance at infinity, I wanted to compare it with the Leica at a close distance of 2 meters. The results indicated that the Leica performed better across the frame. This outcome was expected because, when comparing the lenses side by side at closer distances, the Simera did not show the same mid-field advantage seen in the infinity tests.

For this test, I will provide crops showing wide open performance at the center, mid-field, and extreme corners when focusing “at center,” as well as crops showing performance when focusing directly on these areas. This meticulous test used live view to ensure 100% precise focus.

The results indicate that performance varies with distance, with the Leica showing slightly better results at closer ranges compared to infinity.











  1. Distance: 2 meters
  2. White Balance: Daylight
  3. Both lenses are well centered, as verified with my decentering test.
  4. Software used: Lightroom with FM Default Landscape Sharpening; all other settings are at default.

    PS: Vignetting, Chromatic Aberration (CA), and distortion were not corrected either in post-processing or in-camera.



    Focused at Center

    (open the browser window to view entire image without resizing)










    Focused at Center: Showing Center area







    Focused at Center: Showing Mid-field area







    Focused at Center: Showing Extreme Corner area




Nov 12, 2024 at 11:40 AM
Fred Miranda
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p.10 #12 · Thypoch Simera 50mm f/1.4 ASPH. Review


Focused at Mid-field

(open the browser window to view entire image without resizing)










Focused at Mid-field: Showing Mid-field area




Nov 12, 2024 at 11:41 AM
Fred Miranda
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p.10 #13 · Thypoch Simera 50mm f/1.4 ASPH. Review


Focused at Extreme Corner

(open the browser window to view entire image without resizing)










Focused at Extreme Corner: Showing Extreme Corner area




Nov 12, 2024 at 11:41 AM
Fred Miranda
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p.10 #14 · Thypoch Simera 50mm f/1.4 ASPH. Review



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Final Thoughts

The Simera 50mm f/1.4 ASPH. is the first Typoch lens I’ve had the chance to try, and after spending some time with it, I’m genuinely impressed. Before diving into its performance and comparing it to the Leica 50mm f/1.4 ASPH. Summilux, I couldn't help but notice how strikingly similar the optical design of the Simera is to the Leica's. While they’re not identical, they follow a very similar design philosophy. But would this similarity translate into comparable image quality?

After extensive testing, including blind tests and side-by-side comparisons with the Leica, I can confidently say their output is very similar.

There are subtle differences in rendering, but as you can see from the comparisons, they are minor --- so much so that they may go unnoticed without a direct side-by-side comparison. Both lenses show very similar levels of axial chromatic aberration, which is a good sign for the Simera, as the Leica is well-regarded for its excellent chromatic correction. In terms of lateral chromatic aberration, however, the Simera performs notably better.

Both lenses show similar levels of distortion, field curvature, and optical vignetting, but the Simera shines in certain areas. For example, it has significantly better flare resistance, producing less veiling and ghosting. Its 14-blade aperture also creates more defined sunstars, and specular highlights remain perfectly round at smaller apertures --- something that’s not always the case with the Leica’s nonagonal aperture shape when stopped down.

In terms of resolution and contrast, at infinity distance, the Leica has a slight advantage in the center of the frame, while the Simera excels in the mid-zones. However, at a closer distance, such as the tested 2 meters, the Leica performs slightly better across the frame, including the mid-field. Ultimately, it comes down to personal preference, as the differences are minor and largely imperceptible in everyday use.

After spending time with the Simera, I can wholeheartedly recommend it. It offers performance on par with the Leica in terms of resolution and contrast, but it also excels in other areas, all at a more affordable price.


Pros:
  1. Compact and lightweight for a fast 50mm lens.

  2. High resolution and contrast at center and mid-field from wide open.

  3. Floating design ensures high resolution/contrast at minimal focus distance (0.45m).

  4. Very low distortion.

  5. Solid build with tight tolerances; my copy was well-centered and calibrated with the rangefinder.

  6. Aperture mechanism creates defined 14-pointed sunstars from f/4 onwards.

  7. Rounded specular highlights when stopped down.

  8. Lower optical vignetting compared to many other fast 50mm lenses.

  9. Pleasant modern rendering with high contrast subjects and smooth transitions.

  10. Unique “mechanical dots” depth of field scale replaces the classic scale.

  11. Excellent resistance to ghosting and veiling flare.

  12. Great chromatic aberration control (both lateral and axial).


Cons:
  1. Inconsistent spacing between aperture markings.

  2. Varying stop increments, transitioning from 1/3 to 1/2 to 1 full stop on small apertures.

  3. Short focus throw requires precise focusing.

  4. Focusing rotation with the tab isn’t as smooth as with some top-tier lenses.

  5. Corners aren’t as sharp at wide apertures.



Nov 12, 2024 at 11:52 AM
rji2goleez
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p.10 #15 · Thypoch Simera 50mm f/1.4 ASPH. Review


Fred, excellent review! The Simera 50/1.4 is an incredible value for the M system. I've thoroughly been enjoying the copy I received two weeks ago. I've always been a 35mm focal length shooter but this lens is so enjoyable that it's been sitting on my M11 except when I mount it on my Sony A1.

Thank you!



Nov 12, 2024 at 12:20 PM
rscheffler
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p.10 #16 · Thypoch Simera 50mm f/1.4 ASPH. Review


Fred Miranda wrote:
When testing resolution and contrast tests at infinity, the Leica lens performs slightly better at the center and extreme corners, while the Simera excels at mid-field, especially at wider apertures. Over the years, I’ve tested the Leica 50mm f/1.4 Lux primarily at infinity, where the mid-field often shows a noticeable ‘dip’ in performance. However, in real-world scenarios with subjects 1 to 3 meters away, I’ve never found this to be an issue. Although the mid-field isn’t as strong as the center, it hasn’t been a major concern.


Fred, do you mostly use the Lux wide open? Did you also try the nearer distance test stopped down? IME the Lux's midfield becomes more nervous as it's stopped down until depth of field masks the effect. Whether it's field curvature or just midfield weakness... but between around f/2.5-4.5 I've found that rule of third subject placement simply looks bad in that aperture range. Kind of a nervous, astigmatic feeling to the point where I generally avoid shooting in that aperture range if the scene is more than just a centrally placed subject. Kind of unfortunate IMO because the Lux really sharpens up a huge amount between f/2-2.8. Maybe it's just my old copy...



Nov 12, 2024 at 02:19 PM
Fred Miranda
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p.10 #17 · Thypoch Simera 50mm f/1.4 ASPH. Review


rscheffler wrote:
Fred, do you mostly use the Lux wide open? Did you also try the nearer distance test stopped down? IME the Lux's midfield becomes more nervous as it's stopped down until depth of field masks the effect. Whether it's field curvature or just midfield weakness... but between around f/2.5-4.5 I've found that rule of third subject placement simply looks bad in that aperture range. Kind of a nervous, astigmatic feeling to the point where I generally avoid shooting in that aperture range if the scene is more than just a centrally placed subject. Kind of unfortunate IMO because the Lux
...Show more

Yes, I do stop down depending on the subject, and I will post more samples to demonstrate the rendering behavior. However, unlike the infinity test, I only tested wide open for the 2-meter resolution and contrast test. As expected, stopping down increases resolution and contrast. I haven’t observed the effect you mentioned.



Nov 12, 2024 at 03:09 PM
wolfloid
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p.10 #18 · Thypoch Simera 50mm f/1.4 ASPH. Review


It would be very interesting to see a central sharpness comparison wide open at 1m, 1.5, and 2m with the Voigtlander 50mm f1.5 II. I am sure it will be sharper, but by how much?


Nov 12, 2024 at 03:10 PM
Fred Miranda
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p.10 #19 · Thypoch Simera 50mm f/1.4 ASPH. Review


wolfloid wrote:
It would be very interesting to see a central sharpness comparison wide open at 1m, 1.5, and 2m with the Voigtlander 50mm f1.5 II. I am sure it will be sharper, but by how much?


I apologize, but I do not own this lens. Perhaps someone who has both can post some comparisons here?

That being said, I reviewed the Voigtlander 50mm f/1.5 Nokton II and recall it being less corrected for spherical aberration, which is particularly noticeable at close distances. It also has higher distortion, less correction for CA, higher vignetting, and more pronounced cat-eye bokeh, which can create a swirl effect depending on the subject/background distance. The Voigtlander has a different rendering compared to the Leica/Simera.



Nov 12, 2024 at 03:19 PM
wolfloid
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p.10 #20 · Thypoch Simera 50mm f/1.4 ASPH. Review


Thanks very much for that answer, Fred. I’ve read your review of the Voigtlander several times, and it is really very informative (which is why I said that I’m sure that the Simera 50 will be sharper) it is just that it helps a great deal when the person who has spent so much time and effort getting to know one lens’s strengths and weaknesses then can directly compare it with a new lens they are testing.

I know that the CV 50 has spherical aberration wide open, robbing the lens of sharpness close up, but that is, of course, always relative. When you then say that the Simera 50 is clearly more corrected for that, then that comparison brings more clarity. Naturally, a side-by-side image comparison would add a visual reference too - so, if anyone has one, it would be useful.



Nov 12, 2024 at 04:28 PM
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