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Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Started Jun 16, 2020 | Discussions
Spazmaster Regular Member • Posts: 227
Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts
7

Well, I bought a used Fuji 23mm f2 after I was unhappy with the Viltrox 1.4. Results were a bit surprising. Viltrox 23mm is noticeably sharper at f2 in the center but much softer near the edges.

Ive noticed a strange issue with the Viltrox which Ive mentioned in other posts. If I take multiple shots so: Press shutter, keep composition, press shutter again. The last shots are usually MUCH sharper than the first, making me believe there is an issue with AF.

Im torn because I love the size and handling of the Fuji, Viltrox at 1.4 for me isnt super usable but its nice to have, and its sharper at f2 in the center. So a trade off of size and handling for the ability to shoot at 1.4 if needed, nut mainly I would be keeping it at f2.

Let me know your guys thoughts. These aren't scientific by any means, and I still have time to return the Viltrox so I may do more tests.

Center Crop

Center Crop

Center Crop

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Center Crop

Center Crop

Center Crop

Near Edge Crop

Near Edge Crop

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CAcreeks
CAcreeks Forum Pro • Posts: 18,941
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Spazmaster wrote:

Well, I bought a used Fuji 23mm f2 after I was unhappy with the Viltrox 1.4. Results were a bit surprising. Viltrox 23mm is noticeably sharper at f2 in the center but much softer near the edges.

Thanks for posting the test. Yes, the difference seems significant! Sharper center. An oddity is that the Viltrox samples downsize better. Is that due to better low frequency MTF? I can't really judge edge sharpness very well from this set. It's true that the final two shots make the XF 23/2 look sharper, but rendition is so dark that the Viltrox produces more knot detail.

What mostly strikes me is that the XF 23/2 is darker. Either it underexposes or the Viltrox 23/1.4 overexposes. All photos at f/2 according to EXIF.

Ive noticed a strange issue with the Viltrox which Ive mentioned in other posts. If I take multiple shots so: Press shutter, keep composition, press shutter again. The last shots are usually MUCH sharper than the first, making me believe there is an issue with AF.

Firmware fix might help?

Im torn because I love the size and handling of the Fuji, Viltrox at 1.4 for me isnt super usable but its nice to have, and its sharper at f2 in the center. So a trade off of size and handling for the ability to shoot at 1.4 if needed, nut mainly I would be keeping it at f2.

If a prime isn't any faster than a zoom, it seems like a waste of money to me. The 16-55/2.8 is only a stop slower than the XF 23/2, the 18-55/2.8-4 maybe 1.5 stops. I would go for f/1.4.

Let me know your guys thoughts. These aren't scientific by any means, and I still have time to return the Viltrox so I may do more tests.

I would make the judgement based on stopped-down performance. We know the Viltrox has nervous bokeh at certain f-stops, but it hasn't been characterized as I recall.

OP Spazmaster Regular Member • Posts: 227
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Heres two full size images to compare, both have had the exposure "equalized" using Auto exposure in light room. quite a bit in difference of rendering of colors.
I lean to preferring Fujis rending. Focus was on the island IIRC

Heres two more that really show off the difference in rendering. To me the Fuji has more "pop" for lack of a better word. Both auto exposure in LR again.

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HatWearingFool
HatWearingFool Senior Member • Posts: 2,758
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Spazmaster wrote:

Heres two full size images to compare, both have had the exposure "equalized" using Auto exposure in light room. quite a bit in difference of rendering of colors.
I lean to preferring Fujis rending. Focus was on the island IIRC

Heres two more that really show off the difference in rendering. To me the Fuji has more "pop" for lack of a better word. Both auto exposure in LR again.

In the first shot you got some side light from the sun that makes the texture pop. The second is flatter lighting.

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OP Spazmaster Regular Member • Posts: 227
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

While that is definitely possible, the shots were taken less than a second apart.

Heres two more. Its interesting that despite using the Lightroom Auto exposure the Fuji photos are coming out much darker.

Also interesting to note is just how much and how fast the Viltrox sharpness falls off. Look at the edges of the logs compared to the Fuji.

In this case I prefer the brighter rendering of the Viltrox, though the sharpness is terrible on the edges of the log.

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debo Senior Member • Posts: 2,944
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts
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debo Senior Member • Posts: 2,944
more samples from Viltrox (golden hour) wide open f/1.4

I must say that for the price it isn't bad but it isn't perfect either. I am used to the GFX lenses now so my personal bar is a little high. YMMV

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Rmcp20 Senior Member • Posts: 1,518
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Spazmaster wrote:

Well, I bought a used Fuji 23mm f2 after I was unhappy with the Viltrox 1.4. Results were a bit surprising. Viltrox 23mm is noticeably sharper at f2 in the center but much softer near the edges.

Ive noticed a strange issue with the Viltrox which Ive mentioned in other posts. If I take multiple shots so: Press shutter, keep composition, press shutter again. The last shots are usually MUCH sharper than the first, making me believe there is an issue with AF.

Im torn because I love the size and handling of the Fuji, Viltrox at 1.4 for me isnt super usable but its nice to have, and its sharper at f2 in the center. So a trade off of size and handling for the ability to shoot at 1.4 if needed, nut mainly I would be keeping it at f2.

Let me know your guys thoughts. These aren't scientific by any means, and I still have time to return the Viltrox so I may do more tests.

Not surprising at all. Read my thread on this exact test:

https://www.dpreview.com/forums/thread/4494192

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CAcreeks
CAcreeks Forum Pro • Posts: 18,941
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

HatWearingFool wrote:

Spazmaster wrote:

Heres two full size images to compare, both have had the exposure "equalized" using Auto exposure in light room. quite a bit in difference of rendering of colors.
I lean to preferring Fujis rending. Focus was on the island IIRC

Something is wrong here. Despite 1/5800 shutter speed,* the camera is moving left to right during the exposure. Take a look at several water birds on the left side. That kind of destroys any sharpness in the greenery, I think.

* exiftool says 1/5800, DPreview says 1/6400

[two more shots of iron bar and concrete post

In the first shot you got some side light from the sun that makes the texture pop. The second is flatter lighting.

Yes, and exposure (shutter speeed) was different.

HatWearingFool
HatWearingFool Senior Member • Posts: 2,758
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

CAcreeks wrote:

HatWearingFool wrote:

Spazmaster wrote:

Heres two full size images to compare, both have had the exposure "equalized" using Auto exposure in light room. quite a bit in difference of rendering of colors.
I lean to preferring Fujis rending. Focus was on the island IIRC

Something is wrong here. Despite 1/5800 shutter speed,* the camera is moving left to right during the exposure. Take a look at several water birds on the left side. That kind of destroys any sharpness in the greenery, I think.

* exiftool says 1/5800, DPreview says 1/6400

Definitely some wonky camera movement there. It looks like left to right in a couple of places but given how sharp the centre is you would think it would be rotational movement.

[two more shots of iron bar and concrete post

In the first shot you got some side light from the sun that makes the texture pop. The second is flatter lighting.

Yes, and exposure (shutter speeed) was different.

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OP Spazmaster Regular Member • Posts: 227
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Its possible I suppose, but its not like I was spinning in circles when I took the shot. I think its just that soft. center is plenty sharp in that shot.

Its hard to keep making excuses when the Fuji just seems to hit much more often, which was sort of in line with my initial impressions of the Viltrox. Yes you can get nice results, but more often then not theres just something off.

I have many more portraits taken with the Viltrox and a lot of them the focus missed or the subject is super glowey. I would post them but they are personal and the subject would prefer not.

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baobob
baobob Forum Pro • Posts: 18,248
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

Very well done test that shows the weakness of the Viltrox on bordres in a real life shooting Bravo !

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baobob
baobob Forum Pro • Posts: 18,248
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

The only weaknes of the Xf which is well known is softness wide open at the minimal focus distance If want to do that either stop down or increase the FD Then the lens is again super sharp

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OP Spazmaster Regular Member • Posts: 227
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts
1

Here is another shot at 1.4, I realize this isnt a scene you would normally shoot at 1.4 but it shows just how soft it is. Look at the left third of the image.
Ran through X-transformer

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CAcreeks
CAcreeks Forum Pro • Posts: 18,941
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

HatWearingFool wrote:

Something is wrong here. Despite 1/5800 shutter speed,* the camera is moving left to right during the exposure. Take a look at several water birds on the left side. That kind of destroys any sharpness in the greenery, I think.

* exiftool says 1/5800, DPreview says 1/6400

Definitely some wonky camera movement there. It looks like left to right in a couple of places but given how sharp the centre is you would think it would be rotational movement.

Nah, the center is not sharp. This is only 200% zoom and it's easy to see that all the white flowers are wider than they are tall, indicating sideways camera shake.

Added: actually the XF 23/2 shows similar horizontal length, so I'm probably wrong.

(unknown member) Senior Member • Posts: 2,057
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

It is an interesting comparison. On the one hand I realized I wasted too much time looking for news about these Viltrox lenses. I should have just listened to the people who say Fuji make great lenses.

On the other hand the Fuji seems to render completely differently in sunlight. Surely the Viltrox is more natural? I wonder if this is a glass coating which acts like an ND/UV2 filter for Fuji? Perhaps to reduce the horrific CA the Viltrox suffers from? Or is it possible that clouds were responsible for the Fuji shots showing a lack of sunlight and shadows?

John Gellings
John Gellings Veteran Member • Posts: 9,743
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts
2

CAcreeks wrote:

HatWearingFool wrote:

Something is wrong here. Despite 1/5800 shutter speed,* the camera is moving left to right during the exposure. Take a look at several water birds on the left side. That kind of destroys any sharpness in the greenery, I think.

* exiftool says 1/5800, DPreview says 1/6400

Definitely some wonky camera movement there. It looks like left to right in a couple of places but given how sharp the centre is you would think it would be rotational movement.

Nah, the center is not sharp. This is only 200% zoom and it's easy to see that all the white flowers are wider than they are tall, indicating sideways camera shake.

Added: actually the XF 23/2 shows similar horizontal length, so I'm probably wrong.

Only a 200% zoom... hahahah.

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CAcreeks
CAcreeks Forum Pro • Posts: 18,941
Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts

John Gellings wrote:

Nah, the center is not sharp. This is only 200% zoom and it's easy to see that all the white flowers are wider than they are tall, indicating sideways camera shake.

Added: actually the XF 23/2 shows similar horizontal length, so I'm probably wrong.

Only a 200% zoom... hahahah.

Plus worms visible in greenery.

Sorry, I should have abandoned this comparison days ago.

debo Senior Member • Posts: 2,944
battle of the f/1.4s
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