Review of the Samyang XP 10mm F3.5

A couple of months ago Samyang announced a new XP 10mm f/3.5 ultra-wide-angle lens. It seems like I’m one of the first people in the world who got a production sample of this lens.

Therefore I think a quick review could be interesting to people who are still on the fence whether they should get this lens or not. I bought this lens at Amazon and paid the full price.

The Samyang XP 10mm f/3.5 is one of the widest rectilinear full-frame lenses available. If you want to have significantly more field of view your only option is to use fisheye lenses.

The selection of rectilinear non-fisheye full-frame lenses with a focal length < 12mm is very limited. I only know 4 other lenses (the descriptions are based on many reviews I’ve read on the internet but not on personal experience):

  • Canon 11-24mm f/4
    • Canon EF-mount, but easily adaptable to Sony e-mount
    • AF lens, EXIF info with intelligent adapter
    • 180mm filter holder available from Nisi
    • large and heavy (1180g)
    • optical quality good, but corners not great, even stopped down
  • Venus Optics Laowa 10-18mm f4.5-5.6
    • Sony e-mount
    • MF lens with no electronic interface and no EXIF info
    • 37mm rear filter at the back of the lens (great feature!!!)
    • small and light (496g)
    • optical quality rather mediocre
  • Voigtländer Heliar 10mm f/5.6
    • Sony e-mount
    • MF lens with electronic interface and EXIF info
    • 150mm filter holder available from Nisi
    • small and light (375g)
    • optical quality good, but corners not great, even stopped down
    • very nice sun stars and color rendition
  • Irix 11mm f/4
    • Canon EF-mount, but easily adaptable to Sony e-mount
    • MF lens, EXIF info with intelligent adapter
    • rear filter holder for gelatine filters
    • medium size and weight (730g)
    • optical quality good, but corners not great, even stopped down


The New Samyang XP 10mm f/3.5 is a welcome addition. Especially since all of the above lenses have certain weaknesses as pointed out.

It belongs to Samyang’s XP series which is their premium MF series. Build quality is very good. Much higher than the standard Samyang lenses and comparable in my opinion to lenses like the Zeiss Milvus.

The manual focus feel is very nice and comparable to Zeiss lenses.

The XP 10mm is a manual focus lens but has an electronic interface. With an intelligent adapter (or on a Canon camera) you get full EXIF info and change the aperture via the camera.

The lens has a medium size and weight (780g), right in between the Canon and the Laowa/Voigtländer.

The optical quality of the XP series lenses is typically also very good. I had tested the Samyang XP 14mm in the past and the sharpness was extremely high, corner to corner even wide open at certain distances and focus settings. Just the field curvature of this lens was too strong for me.

Therefore my expectations regarding the optical quality of the XP 10mm were quite high.

Adapter for Sony e-mount

Since ultrawide angle lenses are sometimes very sensitive to flange distance variations I decided to use the Sigma MC-11. This adapter is known as the one with the most precise flange distance. To reduce the strain to the lens mount I got also the SmallRig lens adapter support bracket 2063. Combined with an RRS BQDS Arca Swiss plate it allows you to mount the lens/adapter directly to the tripod. Probably not necessary for the rather lightweight XP 10mm but useful for heavier lenses. The BQDS allows mounting in both directions, which can sometimes be helpful.

Test procedure

All the following technical tests were done with a Sony A7RII from a stable Gitzo tripod at 100 ISO with EFC shutter, 2s self-timer, and IBIS off using uncompressed RAW. The images were processed in LR using the following sharpening settings: 50/0.7/100/0. Contrast and clarity were set to 0 in LR. Sharpness should be evaluated only at the 100% crops.

Infinity focus

The first problem I discovered was that the lens can’t be focused fully to infinity. At the hard stop of the lens, the focus point is somewhere around 3-5 meters. I’m not sure if this is a problem with the lens or the MC-11 adapter. My guess is it’s rather the lens since I’ve never heard of any infinity focus problems with the MC-11. Since I have neither another Canon lens nor another adapter available I can’t verify this assumption. I’m trying to get my hands on another XP 10mm in the next couple of weeks.

But for further testing, this is not a very significant limitation. A 10mm lens focused to 5m is at f/3.5 already at its hyperfocal distance and the image degradation at infinity is very small. Stopped down the differences will be even smaller, as shown below. If the second tested XP is not better I will keep this lens despite its limitations. And I’m rather picky with my lenses.

Test for decentering

Next, I tested the lens for decentering as I do with all my new lenses. I focused to (hard stop) infinity and tilted the camera 45° alternately to the right and left that the horizon (with some interesting objects) leads through the corners.

The lens is neither perfectly centered nor severely decentered. The left corners wide open are slightly less sharp than the right corners. But I’m not sure if one can really expect a perfectly centered 10mm ultra-wide-angle lens wide open. My guess is, that’s pretty normal for this lens.

Sharpness and best apertures

Wide-open at f/3.5 the extreme corners are quite soft and the center of the image has a slightly reduced contrast.

upper-right corner at f/3.5 (100% crop)
lower-left corner at f/3.5 (100% crop)
upper-left corner at f/3.5 (100% crop)
lower-right corner at f/3.5 (100% crop)
center at f/3.5 (100% crop)

At f/11 the lens sharpens up very nicely, even in the extreme corners.

upper-right corner at f/11 (100% crop)
lower-left corner at f/11 (100% crop)
upper-left corner at f/11 (100% crop)
lower-right corner at f/11 (100% crop)
center at f/11 (100% crop)

Here is another slightly different test scene, followed by more 100% crops.

upper-right corner at f/3.5 (100% crop)
lower-left corner at f/3.5 (100% crop)
upper-left corner at f/3.5 (100% crop)
lower-right corner at f/3.5 (100% crop)
center at f/3.5 (100% crop)
upper-right corner at f/11 (100% crop)
lower-left corner at f/11 (100% crop)
upper-left corner at f/11 (100% crop)
lower-right corner at f/11 (100% crop)
center at f/11 (100% crop)

It makes not much sense to show the other apertures. At f/8 the corners are less sharp compared to f/11 with similar center sharpness and at f/16 diffraction slightly softens the whole images without any additional benefit for corner sharpness.

Therefore the best aperture is clearly f/11. Other apertures like f/8 or f/16 can be used for DOF reasons but not for further improving sharpness. I will probably shoot this lens most of the time at f/11 (or f/16 if I need more DOF).

Here are some more test images shot at f/11 with selected 100% crops.

100% crop
100% crop
100% crop
100% crop
100% crop
100% crop
100% crop
100% crop
100% crop
100% crop
100% crop

Flare resistance

As expected from a 10mm ultra-wide-angle lens with a bulbous front element the flare resistance is not very good. But at least both contrast and color saturation stay very high even if you shoot directly against the sun.

f/11, 100% crop


The rendering of sun stars with this lens is not very spectacular, especially compared to lenses like the Voigtländer or Zeiss Loxia.


If you stop down to f/22, it gets slightly more interesting.



Evaluating the color rendition of a lens is always somewhat subjective. I really like the colors of the XP 10mm. It seems that this lens has neither a severe color cast nor a limited color differentiation. The XP 10mm is probably not as great as the Voigtländer or Zeiss Loxia lenses but not far behind and much better than for example the Sony 12-24mm lens. For examples see above and below.


Wide-open this lens shows a strong vignetting, but stopped down to f/11 it’s pretty much gone. Even at f/8 the remaining vignetting looks already very good and can easily manually corrected in LR.



Distortion of the XP seems to be well controlled for a 10mm lens. It has visible barrel distortion but nothing extreme.

It should be easy to correct the distortion in LR if necessary. There is currently no lens profile available for LR, but this could change in the future.

Using ND filters

Since I plan to use the lens for timelapse photography the option to use ND filters would be really helpful. Currently, there is no custom filter holder for the Samyang available. I tried my Nisi holder for the Sigma 1.8/14mm. It fits perfectly on the Samyang …

… but sadly it vignettes severely.

Nisi Sigma 1.8/14mm filter holder on XP 10mm @ f/11

Even at a 16:9 crop, it is not useable at all.

cropped to 16:9

Sample images

The above images were shots to evaluate certain technical aspects and therefore are lacking completely any aesthetic value. Here are some additional images shot under normal shooting conditions to give you an impression of the overall rendering of the lens. They were shot handheld at f/11 with IBIS on and focused at infinity. They are processed with different individual parameters in LR.

Asam Church Maria de Victoria, Ingolstadt, f/11, ISO 100, perspective correction in LR
Asam Church Maria de Victoria, Ingolstadt, f/11, ISO 1600
Asam Church Maria de Victoria, Ingolstadt, f/11, ISO 1600
Asam Church Maria de Victoria, Ingolstadt, f/11, ISO 1600, perspective correction in LR
Liebrauenmünster, Ingolstadt, f/11, ISO 1600
Liebrauenmünster, Ingolstadt, f/11, ISO 1600
Liebrauenmünster, Ingolstadt, f/11, ISO 1600
Klenzepark, Ingolstadt, f/11, ISO 80
Turm Triva, Klenzepark, Ingolstadt, f/11, ISO 80
Turm Triva, Klenzepark, Ingolstadt, f/11, ISO 80


Altogether I think the Samyang 10mm XP is a keeper. It has a very nice rendering with nice colors and a good sharpness stopped down to f/11. It’s probably not a lens I will use every day but for certain situations, it can be priceless. Out of the currently available rectilinear full-frame wide-angle lenses below 12mm, I think the Samyang is the best choice unless size and weight matter more than image quality. I will probably use this lens nearly always as a fixed focus (hard stop infinity) and fixed aperture (f/11) lens. That’s where it shines. In addition, this makes shooting with this lens very easy. I will probably try a second sample in a couple of weeks. If there are any significant differences I will give you an update here.

In the next months, I will also do a landscape photography trip with this lens which will lead to a deeper understanding of the characteristics of this lens.

If you want to see some additional tests with this lens write your suggestions in the comment sections below. Just keep in mind, that my time is currently very limited. And I can’t do any night sky tests since I live in a very light-polluted area.

Update 7th of July:

I got a second sample of the XP 10mm and did some quick tests. With this sample, the hard stop of the manual focus is exactly at infinity and not at 4-5m. Therefore the behavior of my first sample was based on the lens and not on the MC-11 adapter.

The performance of both samples at f/11 is nearly identical.

XP 10 #1, f/11, 100% crop of center
XP 10 #2, f/11, 100% crop of center

Wide-open focused to the hard stop the second sample is sharper due to the correct infinity point.

XP 10 #1, f/3.5, 100% crop of center
XP 10 #2, f/3.5, 100% crop of center

With hard stop infinity focus, the corners on the sample #1 are slightly sharper.

XP 10 #1, f/3.5, 100% crop of corner
XP 10 #2, f/3.5, 100% crop of corner

But this is only due to the field curvature characteristic of the lens and can be avoided by focusing on the corners instead of the center.

For normal landscape photography, my first sample of the XP 10mm could even have a small advantage regarding usability. The hard stop is exactly at the hyperfocal distance of the lens for stopped down shooting. This means for hyperfocal shooting at f/11 you can set the lens to the hard stop and forget about manual focus. With my second sample, you always have to turn the focus ring slightly back from the infinity hard stop for hyperfocal shooting (or best corner sharpness).

But on the other hand, this second sample is better for astro / milky-way shots wide open. I have returned the first sample and will keep the second one.

Update 22nd of August:

ND filters

As written above using ND filters with the 10mm XP is difficult. There is currently no filter holder available for this lens.
But there exist alternative solutions if you use this lens with an adapter on a Sony camera. There are adapters available with integrated ND filters. Since the aperture of the 10mm XP can only be adjusted electronically you need an adapter that transmits the electronic communication between lens and camera. I’ve found three different options:

  1. Aputure DEC Vari-ND Wireless Lens Adapter
    It uses an electronic liquid crystal variable ND filter with the range ND8 – ND2048. This product is quite large and has integrated lithium batteries which need to be charged regularly. I’ve not tested it since I don’t like its size and the necessity to charge one more battery. But according to most reviews, it seems to work well without any color casts even at the higher ND values. The standard price is 700$, but currently, you can get it at several vendors for less than 300$. For this reduced price, it could be an interesting option for some.
  2. Fotodiox Vizelex ND Throttle Fusion Smart AF Lens Adapter
    This adapter uses an optical variable ND filter (based on polarization) with a range from ND2 – ND 256. It is not much larger than a standard Canon-Sony adapter and has an integrated tripod mount which is quite nice. I was a bit hesitant to get this adapter because the reviews on Amazon were all very negative. Many people had problems with the electronic communication between lens and camera using this adapter. Some of them immediately after arrival and some after a couple of months of usage. Nevertheless, I gave it a try and ordered one via Amazon. Result: The communication between lens and camera never worked. I was not able to change the aperture with this adapter and immediately returned it. The price of this adapter is currently 150$ which would make it a cost-effective solution … if it would work reliably.
  3. Kipon Mark 3 Neutral Density Autofocus Lens Mount Adapter
    This adapter also uses a standard optical polarization-based variable ND filter. Its range is ND3 – ND128. The price is around 470$ (in Europe about 500€).
    The ND filter holder can be removed from the adapter and exchanged against another filter holder for standard 37mm screw-in filters.
    This adapter works quite well. The electronic communication works reliably with all lenses and camera bodies. But it has no tripod mount like the Fotodiox.

If you use filters between the lens and camera it changes the optical system. You get at least two side effects:

  • First, the focus will be shifted. If you use a standard adapter with the correct flange focal distance and integrate an optical element like a filter in this adapter the lens will shift the focus. This means that for example infinity is not at the infinity mark anymore and also the minimum focus distance can be influenced. If you have a lens with floating elements (non-linear extension focusing system of some lens elements to improve close distance image sharpness), this shifting of the focus can lead to a significant lower image sharpness since lens elements positions and focus distance do not fit together anymore as intended by the lens designer. The thicker the filter glass the more is the focus shift. The Kipon Adapter compensates for this effect by using a wrong/different flange focal distance.
  • Second, especially with wide-angle lenses, an additional optical element between lens and sensor influences the field curvature characteristic of the lens. This is a well-known effect if you use a lens designed for a certain cover glass thickness in front of the sensor on a camera with a significantly different sensor cover glass thickness (like a Leica M lens on a Sony E-mount camera). Especially for an ultra-wide lens like the 10mm XP, this effect is pretty much unavoidable with any of the above solutions.

Since the flange distance of the Kipon adapter is adjusted to compensate the 2mm thick ND filter in the optical path, this means if you use the adapter without the filter you can’t focus anymore to infinity. Even if you put a standard screw-in filter in the second filter holder the maximum distance you could focus the 10mm XP is around 2m. The reason is, that a standard filter has a thickness of about 1mm while the variable ND filter has a thickness of 2mm. In the past Kipon had sold special UV filters with 2mm thickness to be used with this adapter. But they are not available anymore. If you want to use this adapter with any other filter or even without any ND filter you have to be creative and build something by yourself with 2mm glass thickness. You can get some ideas here in this thread:

After testing the Kipon (with the variable ND), I can say that the infinity focus is completely unchanged compared to the MC-11. The sharpness and contrast are slightly reduced by the ND filter. It’s similar to the diffraction effect if you stop down the lens to f/16. It can be partly compensated by additional sharpening and/or clarity in Lightroom. Field curvature is slightly worse compared to using the lens without the ND filter, but it’s not too bad. There is no significant color cast induced by the ND filter (at least not more as with standard B+W fixed ND filters) and I see no X artifacts even at the max position.

In my opinion, the Kipon is currently the best option if you need to use ND filters with the Samyang 10mm XP.

Here are some samples using this Kipon adapter with the variable ND filter on the 10mm XP:

Sleepy Bay, Freycinet NP, Tasmania, Australia
Bay of Fires, Tasmania, Australia
Sleepy Bay, Freycinet NP, Tasmania, Australia

More sample images:

Well, the proof is in the pudding. As promised in my above review I took the Samyang 10mm XP in August on my trip to Australia (the blog post about this trip will take at least until beginning next year). Here are some sample images shot on this trip with the Samyang 10mm XP. The images are individually processed with different settings in Lightroom and sometimes slightly cropped and/or perspective corrected.

Royal Arcade, Melbourne, Australia
Block Arcade, Melbourne, Australia
State Library of Victoria, Melbourne, Australia
State Library of Victoria, Melbourne, Australia
St John’s Chruch, Launceston, Tasmania, Australia
Ben Lomond NP, Tasmania, Australia
Ben Lomond NP, Tasmania, Australia
Sleepy Bay, Freycinet NP, Tasmania, Australia
Sleepy Bay, Freycinet NP, Tasmania, Australia
Sleepy Bay, Freycinet NP, Tasmania, Australia
Sleepy Bay, Freycinet NP, Tasmania, Australia
MONA – Museum of Old and New Art, Hobart, Tasmania, Australia
MONA – Museum of Old and New Art, Hobart, Tasmania, Australia
MONA – Museum of Old and New Art, Hobart, Tasmania, Australia
MONA – Museum of Old and New Art, Hobart, Tasmania, Australia

My final assessment of this lens: I still think it’s currently the best 10mm lens on the market. The mechanical construction seems to be very good and the optical performance is quite good for a 10mm lens but not on the same level as the best 14mm – 21mm wide-angle lenses. But this is to be expected. Another aspect I’ve learned on my last trip is, that it’s extremely difficult to achieve great compositions with a 10mm lens. The difference between 10mm and for example 14mm is huge. I felt comfortable using this lens for architecture shots and especially inside buildings. But for landscapes, I preferred 14mm in nearly all situations.

15 thoughts

  1. I know I am late to the game but I am considering this lens. Cant you use Kase sensor filter or lens adapter filters for ND? They do not appear to change focus or affect infinity focus.

    1. I’ve tested the Aurora lens adapter filters and they didn’t work at all with the 10mm XP (massive focus shift and unsharp corners). The Kase sensor filters would probably perform a bit better because they are thinner. I have no personal experience with them. But I know some people have tried them with the Sony 14mm GM and found they also had a negative impact on image sharpness.

      1. I went out this morning for a long day of shooting and though I did not do comparison tests, I shot with the R5 Canon rear lens CP built in EF/RF adapter, the Aurora ND filters in the standard EF/RF adapter, the Kase ND sensor filter that sit over the sensor and previously shot images of the over the sensor Night filter reviewing older images with EF/Sigma lenses with this filter. I have not noticed a huge decrease in sharpness or other artifacts. But I was not comparing it side by side to no filter. It was not bad enough to cause me to say, not going to use this type of filter.. BUT, I have not tried the ND64000. Instead of side by side tests with no filter.. because we know filters affect IQ to some degree or another, how does it compare to the same type filter on the front of the lens? But even the filter and lens combinations I have shot with have not cause me to say, I don’t want to use the rear filters. But realize I am not a pro photographer and if I was, I would would be using the best Canon RF glass instead of sigma, so again, I would be interested to see the effects of rear sensor/adapter filters vs front filters. Realizing that you might be comparing a pre Covid price $42-49 rear filter to a much more expensive front lens filter and it the difference worth the price. I read both articles. They do not dissuade me from using the rear filters. Although the Hiada did seem to introduce more degradation than the others I would not buy those. I purchased a Sigma 105 1.4 and 135 1.8 and Adorama gave me Hiada 105mm and 82mm CP filters with these lenses. I wonder how they affect IQ being Hiada, but I have not tested those either. So what would be of interest is to see which type of filter causes less degradation (front end and back end), Comparing the front end against as $50 rear filter which fits every lens compared to much more expensive front element filters which only fits the front, or having to carry around a front end filter hold. As you can probably tell, I am not as big a pixel peeper as most, but it would be nice to find out which perform better so a cost benefit can be done on these different filters. Pros will stick with the most expensive stuff. For the rest of us, we wouldn’t be buying sigma lenses if money were no object and price to performance were not a factor.

      2. Thanks for commenting.
        Here are a couple of remarks to your addressed points:
        – thick rear filters are always worse than front filters for corner sharpness (only the Kase and the Lee/Kodak filter foils are currently really thin)
        – stopping down a lens can (partly) mitigate the effect
        – the (thick) Haida rear filter is still my preferred choice for the Sigma 14-24 because I’m not willing to carry a huge front filter system for that lens and it has the best handling of all rear filters while keeping an acceptable corner sharpness stopped down
        – for the Sony GM14 the only good rear filter solution is the Kodak Wratten filter (extremely expensive and absolutely terrible handling, but for me still better than a front filter)
        – for the Samyang 10mm XP exists no good filter solution, neither front nor rear (I’ve sold the lens)
        – the Sigma 14-24 is for me no price/performance compromise, it is the best wide-angle zoom lens available on the market and easily as good as the best fixed focal length lenses or the Sony 12-24GM

      3. Thank you for your reply and for the article. I did not realize you wrote the article, great article by the way. Thank you for more details, I better understand what you are saying. My last question would be, I was considering the Samyang 10mm and you said. “for the Samyang 10mm XP exists no good filter solution, neither front nor rear (I’ve sold the lens)” I want a super wide angle lens 10mm-12 is there a good replacement for the 10mm Samyang? Your article states all the other superwides including the Canon 11-24 had bad corners. My cell phone camera has the equivalent of a 12mm lens and I really like the images I take with it. When I shoot both my 14mm on my R5 and the phone, I like the phone field of view better. I am now looking for a 12mm (instead of a 10-11mm) that will work with rear filters such as Aurora/Kase Sensor and adapter (as I am not going to buy an adapter with a built in electronic ND filter in it) what would you suggest that is good quality, decent corners?

      4. If you can live with 12mm and use Sony I would recommend the Sony 12-24 GM with some thin rear filters.
        For the Canon R5, it’s a bit more complicated. Maybe take a look at the Laowa options. A lot of people are really happy with the Laowa 12mm lens. But I have no personal experience with this lens. Another option could be the Voigtländer 12mm if you can adapt this to the R5.

  2. Nice review, very thorough!

    I think most Samyang manual lenses have an easily adjustable end stop, that is accessible by lifting the rubber grip on the lens. At least that is what I had to do with my 14!

    If you want to set the new one up like the old, with infinity at the hyperfocal setting!

    1. Thanks for the tip about the possibility to adjust the infinity hard stop. So far I’m happy with the current setting, but maybe I will use this option in the future.

  3. Many thanks for the considerable detail that you have provided – pity that quality control is not what we have come to expect (infinity). Do you intend to use this lens taking continuous street scenes – especially where the room to ‘get back’ is severely limited? would love to see some shots.
    Good luck

    1. I plan to use the lens mainly for landscapes. I will take it soon to Tasmania and post some more images after this trip.

  4. Thanks for the great review. I’m considering to buy this lens for myself. Its a bummer that the sun star is only medicore. Taking photos with this lens must be feeling like a whole new world. Therefore, I would be happy to see an hands-on review :-).
    Greetings from Cologne

    1. Thanks Michael! I will take this lens on a photography trip soon and will post some additional images afterwards.

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