Help! My Fuji 16mm f1.4 is really distorted

rileydmcdonald

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Hey there! New to the forum, not to photography. I came here because I don't know where else to turn, and I really hope you can help me.

My pictures seem distorted, I'm not sure what to do, and I'm trying not to panic after spending a couple thousand dollars upgrading to a new camera and lens when my old ones were perfectly fine. Here's the deal:

I used to have an X-T10 and a Rokinon 12mm f2 NCS, both of which I loved dearly. I recently upgraded my camera to a new X-T4, sold the Rokinon, and bought a used Fujifilm 16mm f1.4 for a very reasonable price (in very good condition). Maybe I'm just getting used to the X-T4 and the 16mm, but I find myself frustrated by leveling issues with the camera and distortion with the lens.

Last month, part of me wondered if it was the Rokinon 12mm — it's a wide lens! Maybe my tolerance for distortion suddenly went down getting the X-T4 (I used the 12mm on the X-T4 for a few weeks before I sold it to get the 16mm). Still, this has been bugging me. Especially today: I tried to shoot a panorama and got horribly distorted edges on several of the photos.

I've searched everywhere for "16mm f1.4 distortion" and everyone and their dog says this lens is perfect — no distortion, one of Fuji's best, incredible glass, etc. Am I just using it wrong?

Here are the pictures that brought me to the forum. I know they have other issues, and they're unedited save for Lightroom's auto-stitching for panos, but here's what I mean:

Panorama merge - cylindrical projection (X-T4, Fuji 16mm f1.4)

Panorama merge - cylindrical projection (X-T4, Fuji 16mm f1.4)

panorama merge - perspective projection (X-T4, Fuji 16mm f1.4)

panorama merge - perspective projection (X-T4, Fuji 16mm f1.4)

I know projection choices make a difference, and I've seen this before, but the difference on those is aggressive, and neither is true to life. The actual size of that right-side building is somewhere in between those two photos.

Anyway, a pano is only as good as its source images, so here's what I shot:

Second in the panorama series (X-T4, Fuji 16mm f1.4)

Second in the panorama series (X-T4, Fuji 16mm f1.4)

Third in the panorama series (X-T4, Fuji 16mm f1.4)

Third in the panorama series (X-T4, Fuji 16mm f1.4)

After thoroughly wracking my nerves with the building distortion, I took some test shots of a bowl in my living room:

Bowl, centered in room (X-T4, Fuji 16mm f1.4)

Bowl, centered in room (X-T4, Fuji 16mm f1.4)

Bowl, left of the frame (X-T4, Fuji 16mm f1.4)

Bowl, left of the frame (X-T4, Fuji 16mm f1.4)

In those pics above, all I did was turn my camera — no movement otherwise — and to my eyes, the bowl looks a LOT bigger in the edge of the frame than in the centre. Same with the building in the source photos — at the edge of the frame, it's extremely stretched out. Is that not distortion? I thought the 16mm didn't do that! Is there something wrong with this particular lens, or was I misinformed?

I picked panoramic projections carefully when I shot with the Rokinon 12mm — and I was definitely aware of some distortion — but I don't ever recall having to deal with anything this bad unless I was really close to my subject. Distortion on my X-T10 with the 12mm seemed to be fairly well corrected, even as I imported RAW files into my computer.

I know all wide angles will have some distortion, but when everyone says "the 16mm is optically perfect" and I'm getting extreme distortions like these, it makes me nervous. Especially since I can't remember having issues like this with the wider, cheaper lens I had before.

Here's a photo I took with the 12mm, and to my eye, I don't think any of the edges were distorted:

Single image (not pano) shot with X-T10 and Rokinon 12mm f2

Single image (not pano) shot with X-T10 and Rokinon 12mm f2

And for a slightly more apples-to-apples comparison, here are two panoramas, comprised of two pictures stitched together— one with previous hardware and one with new hardware:

View attachment 4130ce0b3e8649e282adeca9203e7b82.jpg
Two-photo panorama, shot with X-T10 and Rokinon 12mm f2

Two-photo panorama, shot with X-T4 and Fuji 16mm

Two-photo panorama, shot with X-T4 and Fuji 16mm

I know the angle is a bit different, and the crop, and the season. But the 12mm still seemed less distorted, somehow. Or maybe I was just used to it.

Another example (without pics because I'm dumb and deleted it): A couple weeks ago I took a photo of a building with the word "smile" painted across the whole side of it — letters over 7 feet tall — with the X-T4 and the 16mm lens. It looked fine in camera, and decent when I was editing up close, but I found a couple feet away from the screen that the "I" in "SMILE" was clearly larger than the other letters, and it was in the centre. Does that not sound like distortion? I was across the street from the building on the sidewalk, so it's not like I was close enough to cause wide-angle close-up distortion.

I'm freaking out a bit. Any tips, tricks, insights? Are my expectations unreasonable? Is the lens/camera an anomalous dud? Is there something I missed about the lens/the camera? Is distortion just inevitable and I'm way off? Are people wrong about it being a "perfect" lens? Can I change a setting somewhere in the camera to fix it?

To be clear, I know I can mess with pics in Lightroom, but I'd like to do as little editing to correct for distortion as possible.

To be clear, I bought the X-T10 brand new in 2016 and used it until late last year, when I bought the X-T4 as an upgrade. Same with the lens — I used the Rokinon until last month, and then I sold it to fund the 16mm. I recognize I had a LOT of time to get to know that combo, so it's possible I'm still just getting used to the new stuff. But I'm frustrated by some of the photos I've gotten with the new gear (like I said, distortion issues and I'm finding it's not level when it says it is), and I'm worried I spent so much money on a new camera and new lens only to be disappointed. I know the gear doesn't make the photographer, but I sometimes feel like this camera took me a step back instead of a step forward.

Please, please tell me I'm wrong somehow. I'm stressing every time I take and edit a photo, and that's the exact opposite of why I love photography. I've found a lot of insightful answers here before, so I thought if anyone could help me, it would be you.

Thank you for reading this. Any insight at all is appreciated.

P.S. is it possible the image sensor itself could be askew? I turned on the X-T4 without a lens earlier (IBIS on), and I could be imagining, but it seemed like the edges of the sensor weren't quite lined up right. Should I talk to Fuji?
 
Solution
Thanks for the including heaps of pictures. Like the responses so far, it looks like it's related to "perspective distortion".

In simple terms, it's when you tilt the lens. I have done this a few times either intentionally or unintentionally.

I have included some examples below.

Example #1 Sigma 16mm on Sony A6000

Camera was tilted quite heavily (upwards), this caused significant perspective distortion.

Sigma 16mm - Before LR transform (Vertical)

Sigma 16mm - Before LR transform (Vertical)

Sigma 16mm - After LR transform (Vertical)

Sigma 16mm - After LR transform (Vertical)



Example #2 Fujifilm16mm on X-T3

basic "vertical" transform. Camera was tilted upwards slightly (minor), you can see highlighted in red.

Fujifilm 16mm - Before LR transform (Vertical)

Fujifilm 16mm - Before LR transform (Vertical)...
Are you shooting with the camera level to the ground, from front to back, and side to side? If you are looking up or down with a wide angle like the 16 1.4 it will cause distortion. If I shoot level, my lens perpendicular to a brick wall for example, using my 14 2.8, there will be very negligible distortion. If I angle the camera up or down and shoot the wall, there will be distortion.

Phil
 
There will always be perspective distortion with a wide angle lens at close range to your subject and/or if your camera isn't level no matter how geometrically perfect it is otherwise. This will be exaggerated significantly with a very wide pano and a perspective projection (try cylindrical).
 
The X-T4 has a vertical level. It's a little hard to find in the settings. I assigned it to a button, since it does not stay on shot to shot. But if you use it, your distortion problems will go away. Shooting down or up with wide angle lenses causes perspective distortion, which is what I see here.
 
Thanks for the including heaps of pictures. Like the responses so far, it looks like it's related to "perspective distortion".

In simple terms, it's when you tilt the lens. I have done this a few times either intentionally or unintentionally.

I have included some examples below.

Example #1 Sigma 16mm on Sony A6000

Camera was tilted quite heavily (upwards), this caused significant perspective distortion.

Sigma 16mm - Before LR transform (Vertical)

Sigma 16mm - Before LR transform (Vertical)

Sigma 16mm - After LR transform (Vertical)

Sigma 16mm - After LR transform (Vertical)



Example #2 Fujifilm16mm on X-T3

basic "vertical" transform. Camera was tilted upwards slightly (minor), you can see highlighted in red.

Fujifilm 16mm - Before LR transform (Vertical)

Fujifilm 16mm - Before LR transform (Vertical)

Fujifilm 16mm - After LR transform (Vertical)

Fujifilm 16mm - After LR transform (Vertical)

Hope that helps. The lens looks fine to me.
 
Solution
For those who aren’t aware…

The newer cameras have a custom assignable Electronic Level option that will get you level lines for both roll and pitch that are exceptionally useful for super wide angle lenses and shooting panos.

X100V

X100V
 
Are you shooting with the camera level to the ground, from front to back, and side to side? If you are looking up or down with a wide angle like the 16 1.4 it will cause distortion. If I shoot level, my lens perpendicular to a brick wall for example, using my 14 2.8, there will be very negligible distortion. If I angle the camera up or down and shoot the wall, there will be distortion.

Phil
I was not! That could be causing it. But why would it cause noticeable distortion on the 16mm and not on the 12mm?
 
Thank you! That makes sense — any idea why I might not have noticed that as much with the 12mm? Or on the previous camera with the 12mm?
 
Thank you so much for the detailed response and examples! I'm glad the lens looks good. Guess I've got some tweaking to do and I'll have to use the 3D leveling tool next time.

I'm still confused why I'd notice this now with the 16mm and X-T4 and not with the 12mm on the X-T10...
 
This is wicked info, thank you! I've read the manual for the X-T4 more than once, and I thought I'd been through all the button combos, but I missed this somehow. Hugely useful! I've assigned it to a button and I'll be using this a LOT.
 
As everyone has said already, it is all about perspective, and camera angle.

Apart from that, the idea that a wide lens dose not distort is fiction. In that to produce an image that has, shall we say straight verticals at the side of frame, the image is actually distorted to achieve this. The type of image formed by a fisheye lens is in fact a true representation of the view the lens can gather from that position with that angle of view. Items to the side of the view, that are in line with ones at the center, are further away, and therefore smaller.

The corrections for this in wide lenses will differ between lenses, and they are for the most part, the best the designer can achieve.
 
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Hey there! New to the forum, not to photography. I came here because I don't know where else to turn, and I really hope you can help me.

My pictures seem distorted, I'm not sure what to do, and I'm trying not to panic after spending a couple thousand dollars upgrading to a new camera and lens when my old ones were perfectly fine.
What you experience is perspectival distortion (in contrast to lens distortion such as barrel or pincushion or moustache distortion).

Perspectival distortion is a physical effect that depends in its size on the focal length and of course on the leveling of the camera in the direction of the optical axis. But not on the camera or the specific lens, only the fl.

You also should have experienced it with your 12 mm Rokinon/Samang lens!
P.S. is it possible the image sensor itself could be askew? I turned on the X-T4 without a lens earlier (IBIS on), and I could be imagining, but it seemed like the edges of the sensor weren't quite lined up right. Should I talk to Fuji?
That's completely normal. It is due to IBIS. Same with mine. No worries.

Regards,

Martin

--
https://500px.com/martinlangphotography
https://www.instagram.com/martin.lang.photography
 
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If you tilt the camera, you will end up with converging verticals.
 
It's common to find wide angle distortion which is particularly noticeable when taking shots of e.g. a group of people. The poor people at the edges of the shot will appear fat and distorted! This can be remedied to a degree in software (DxO anamorphic correction or Lightroom – do a Google search) but it is better not to include important subjects at the edges of a w/a shot if possible. This effect will occur on top of the forms of distortion described so well by the other contributors.

Of course, when you are making panos this will cause problems so, as advised by others here, it would be better not to use a lens with too wide a view.

Phil
 
Are you shooting with the camera level to the ground, from front to back, and side to side? If you are looking up or down with a wide angle like the 16 1.4 it will cause distortion. If I shoot level, my lens perpendicular to a brick wall for example, using my 14 2.8, there will be very negligible distortion. If I angle the camera up or down and shoot the wall, there will be distortion.

Phil
I was not! That could be causing it. But why would it cause noticeable distortion on the 16mm and not on the 12mm?
I really don't know. I have not used that lens, nor do I know how you were shooting it. Suffice to say, all wide angle lenses will distort in some, especially when not held level.

Phil
 
Hey there! New to the forum, not to photography. I came here because I don't know where else to turn, and I really hope you can help me.

My pictures seem distorted, I'm not sure what to do, and I'm trying not to panic after spending a couple thousand dollars upgrading to a new camera and lens when my old ones were perfectly fine. Here's the deal:

I used to have an X-T10 and a Rokinon 12mm f2 NCS, both of which I loved dearly. I recently upgraded my camera to a new X-T4, sold the Rokinon, and bought a used Fujifilm 16mm f1.4 for a very reasonable price (in very good condition). Maybe I'm just getting used to the X-T4 and the 16mm, but I find myself frustrated by leveling issues with the camera and distortion with the lens.

Last month, part of me wondered if it was the Rokinon 12mm — it's a wide lens! Maybe my tolerance for distortion suddenly went down getting the X-T4 (I used the 12mm on the X-T4 for a few weeks before I sold it to get the 16mm). Still, this has been bugging me. Especially today: I tried to shoot a panorama and got horribly distorted edges on several of the photos.

I've searched everywhere for "16mm f1.4 distortion" and everyone and their dog says this lens is perfect — no distortion, one of Fuji's best, incredible glass, etc. Am I just using it wrong?

Here are the pictures that brought me to the forum. I know they have other issues, and they're unedited save for Lightroom's auto-stitching for panos, but here's what I mean:

Panorama merge - cylindrical projection (X-T4, Fuji 16mm f1.4)

Panorama merge - cylindrical projection (X-T4, Fuji 16mm f1.4)

panorama merge - perspective projection (X-T4, Fuji 16mm f1.4)

panorama merge - perspective projection (X-T4, Fuji 16mm f1.4)

I know projection choices make a difference, and I've seen this before, but the difference on those is aggressive, and neither is true to life. The actual size of that right-side building is somewhere in between those two photos.

Anyway, a pano is only as good as its source images, so here's what I shot:

Second in the panorama series (X-T4, Fuji 16mm f1.4)

Second in the panorama series (X-T4, Fuji 16mm f1.4)

Third in the panorama series (X-T4, Fuji 16mm f1.4)

Third in the panorama series (X-T4, Fuji 16mm f1.4)

After thoroughly wracking my nerves with the building distortion, I took some test shots of a bowl in my living room:

Bowl, centered in room (X-T4, Fuji 16mm f1.4)

Bowl, centered in room (X-T4, Fuji 16mm f1.4)

Bowl, left of the frame (X-T4, Fuji 16mm f1.4)

Bowl, left of the frame (X-T4, Fuji 16mm f1.4)

In those pics above, all I did was turn my camera — no movement otherwise — and to my eyes, the bowl looks a LOT bigger in the edge of the frame than in the centre. Same with the building in the source photos — at the edge of the frame, it's extremely stretched out. Is that not distortion? I thought the 16mm didn't do that! Is there something wrong with this particular lens, or was I misinformed?

I picked panoramic projections carefully when I shot with the Rokinon 12mm — and I was definitely aware of some distortion — but I don't ever recall having to deal with anything this bad unless I was really close to my subject. Distortion on my X-T10 with the 12mm seemed to be fairly well corrected, even as I imported RAW files into my computer.

I know all wide angles will have some distortion, but when everyone says "the 16mm is optically perfect" and I'm getting extreme distortions like these, it makes me nervous. Especially since I can't remember having issues like this with the wider, cheaper lens I had before.

Here's a photo I took with the 12mm, and to my eye, I don't think any of the edges were distorted:

Single image (not pano) shot with X-T10 and Rokinon 12mm f2

Single image (not pano) shot with X-T10 and Rokinon 12mm f2

And for a slightly more apples-to-apples comparison, here are two panoramas, comprised of two pictures stitched together— one with previous hardware and one with new hardware:

View attachment 4130ce0b3e8649e282adeca9203e7b82.jpg
Two-photo panorama, shot with X-T10 and Rokinon 12mm f2

Two-photo panorama, shot with X-T4 and Fuji 16mm

Two-photo panorama, shot with X-T4 and Fuji 16mm

I know the angle is a bit different, and the crop, and the season. But the 12mm still seemed less distorted, somehow. Or maybe I was just used to it.

Another example (without pics because I'm dumb and deleted it): A couple weeks ago I took a photo of a building with the word "smile" painted across the whole side of it — letters over 7 feet tall — with the X-T4 and the 16mm lens. It looked fine in camera, and decent when I was editing up close, but I found a couple feet away from the screen that the "I" in "SMILE" was clearly larger than the other letters, and it was in the centre. Does that not sound like distortion? I was across the street from the building on the sidewalk, so it's not like I was close enough to cause wide-angle close-up distortion.

I'm freaking out a bit. Any tips, tricks, insights? Are my expectations unreasonable? Is the lens/camera an anomalous dud? Is there something I missed about the lens/the camera? Is distortion just inevitable and I'm way off? Are people wrong about it being a "perfect" lens? Can I change a setting somewhere in the camera to fix it?

To be clear, I know I can mess with pics in Lightroom, but I'd like to do as little editing to correct for distortion as possible.

To be clear, I bought the X-T10 brand new in 2016 and used it until late last year, when I bought the X-T4 as an upgrade. Same with the lens — I used the Rokinon until last month, and then I sold it to fund the 16mm. I recognize I had a LOT of time to get to know that combo, so it's possible I'm still just getting used to the new stuff. But I'm frustrated by some of the photos I've gotten with the new gear (like I said, distortion issues and I'm finding it's not level when it says it is), and I'm worried I spent so much money on a new camera and new lens only to be disappointed. I know the gear doesn't make the photographer, but I sometimes feel like this camera took me a step back instead of a step forward.

Please, please tell me I'm wrong somehow. I'm stressing every time I take and edit a photo, and that's the exact opposite of why I love photography. I've found a lot of insightful answers here before, so I thought if anyone could help me, it would be you.

Thank you for reading this. Any insight at all is appreciated.

P.S. is it possible the image sensor itself could be askew? I turned on the X-T4 without a lens earlier (IBIS on), and I could be imagining, but it seemed like the edges of the sensor weren't quite lined up right. Should I talk to Fuji?
One of the few negatives I have found with my ex 16 f1.4 was distortion especially on the borders with people. That's one of the reasons I switched to the Fearsome 18 f1.4, very close FOV but with much less distortion

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For lenses reviews and tutorials about Fuji Raf editing https://fujiandstuff.wordpress.com/
My shutterstock https://www.shutterstock.com/g/jeffmerheb
My Flickr https://www.flickr.com/photos/147690104@N02/
 
All we are seeing her is a good rectilinear projection.

There is no perfect way for a wide angle lens to show the world. But rectilinear works best in most situations for a single shot

The rectilinear projection will maintain verticals as vertical and horizontals as horizontal with the camera level. This normally looks correct but in reality the scene looks nothing like this

Imagine standing in front of a really long fence on a flat plane. You take a really wide angle shot with camera level and perpendicular to the fence

you look at the shot and see the top and bottom of the fence as parallel just like you hoped

but that’s makes no sense. Say the nearest post in the fence is 10 feet away. The posts at the edge of the shot might be 20 feet away. So if they are twice as far away the posts should be half the height. That’s crazy you shout at the lens. But the Lens says “but you wanted the top and bottom parallel and straight. So I lied about the post height it’s the only way. “ That’s why your bowl got bigger as you moved it to the edge of the frame

PS you didn’t see it in the cheaper lens as you were less stressed as it cost less

PPS with modern software you can shoot with lenses as wide as you like for panos
 
Another thing [and partially following from the perspective thing): if you want / need to shoot for stitching panorama, 16mm is too wide. Use something like 24mm or longer. You will need to merge more shots but the result will be better
In 35 mm equivalence, the 28 mm is a wide angle but perspective distortion is not an issue in most cases. However, by the time you get to 24 mm this is an ultra wide angle lens and is very sensitive to perspective distortion. Of course the 28 mm is 18 mm on APSC and 24 is 16 in fuji X land.

Any offset from perfectly level will be noticeable in a 16. So yes for panorama stitching a 23 or 24 sounds quite a bit better.
 
Someone correct me if I'm wrong, but I thought the exaggerated tilting of straight lines prevalent in wide angle lenses was called keystoning, whereas distortion is when straight lines are rendered as curved. As long as straight lines are kept straight (regardless of the angle), there's no actual distortion.
 

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