July 22, 2017, 09:13:44 PM

Author Topic: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com  (Read 6194 times)

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Roger at Lensrentals.com has put the brand new Sigma 14mm f/1.8 DG HSM Art through OLAF testing and compared it to various lenses of the same focal length, most notably the Canon EF 14mm f/2.8L II.

From Roger:

Let’s face it, there hasn’t been an impressive 14mm prime for SLRs for a while, and I haven’t heard the natives banging on the castle doors demanding one. But for some people this is going to be a really fun lens. I consider it reasonably priced for what it is; a unique and excellent lens that hasn’t been made before. I shot real-estate for a brief moment in time, and I would have killed for this lens then. And I like playing with ultra-wide images in general, so I’m kind of excited about it. It won’t be a huge fraction of my images, but it will be a tool I didn’t really have before.

A lot of people will never shoot 14mm and will never notice this lens exists. But for those who do, the Sigma 14mm f/1.8 Art Lens is probably going to be a fascinating lens indeed. Read the full review

It shouldn’t come as a surprise that the Sigma 14mm f/1.8 DG HSM Art is better than the much older Canon EF 14mm f/2.8L II as far as optical performance goes.

Sigma 14mm f/1.8 DG HSM Art: B&H Photo | MPEX | Park Cameras (UK)

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pj1974

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #1 on: July 12, 2017, 09:04:39 AM »
I always love Roger's tests, reviews and helpful tech insights and opinions from lensrentals.com

This Sigma 14mm f/1.8 lens is truly a great piece of glass... and well done Sigma for keeping the lens impressive in optics, as well as a 'decent' price for what it is: a magnificently wide, fast - yet sharp lens.

You know... although I do not currently own a FF, I may be tempted to buy this lens, as I also love the 14mm FOV on a Canon crop (about 22.6mm equivalent in 35mm format).

Cheers, CR for the link to the article, and for being one of my main sources of gear-fix on the internet.

PJ  8)
I appreciate using my Canon DSLRs along with a host of lenses & many accessories to capture quality photos, and share with friends.

basketballfreak6

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #2 on: July 12, 2017, 09:30:54 AM »
i picked up a copy of the sigma 14 today (mate at camera shop offered me a too good of a price that i just couldn't refuse) and from little time i had to test (brick wall) it pretty much mirrored Roger's finding, my copy's very sharp wide open in the centre which extends past mid frame, only really soften up at extreme corners (edge still looks very good), distortion is well controlled (simple barrel), vignetting practically gone stopping down to f2.4, only thing left for me to test is coma which i am hoping to do soon

full frame:
Sigma 14mm f/1.8 ART Test by Tony, on Flickr

top right corner crop:
Sigma 14mm f/1.8 ART Test Top Right Corner Crop by Tony, on Flickr

centre crop:
Sigma 14mm f/1.8 ART Test Centre Crop by Tony, on Flickr

i did the test shot from less than 1m away from the wall (wall not big enough to shoot from further back lol) but distortion still looks quite ok and i am sure a non issue out in the field, but so far very happy with what i am seeing

Tom W

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #3 on: July 12, 2017, 10:21:01 AM »
Pretty impressive ultra-wide.

ahsanford

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #4 on: July 12, 2017, 10:38:11 AM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

Angler13

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #5 on: July 12, 2017, 10:56:50 AM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

Lol. Agreed... But as an astro photographer I don't need autofocus on this lens, so the new Rokinon SP 14mm f2.4 is way at the top of my list. It's amazingly sharp and about half the price. Based on what I've seen from the Rokinon, I can't image the Sigma will be worth the extra money for me personally.

meywd

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #6 on: July 12, 2017, 11:21:22 AM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

Lol. Agreed... But as an astro photographer I don't need autofocus on this lens, so the new Rokinon SP 14mm f2.4 is way at the top of my list. It's amazingly sharp and about half the price. Based on what I've seen from the Rokinon, I can't image the Sigma will be worth the extra money for me personally.

Agree, although a lower ISO setting will be great as well.
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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #6 on: July 12, 2017, 11:21:22 AM »

StudentOfLight

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #7 on: July 12, 2017, 11:46:11 AM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

Lol. Agreed... But as an astro photographer I don't need autofocus on this lens, so the new Rokinon SP 14mm f2.4 is way at the top of my list. It's amazingly sharp and about half the price. Based on what I've seen from the Rokinon, I can't image the Sigma will be worth the extra money for me personally.
If the vignetting is better and the resolution and the corner rendering is better similarly good then I think it is worth it for me... Like Mr Sanford I'm still waiting for a complete assessment.
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ahsanford

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #8 on: July 12, 2017, 11:55:19 AM »
If the vignetting is better and the resolution and the corner rendering is better similarly good then I think it is worth it for me... Like Mr Sanford I'm still waiting for a complete assessment.

I'm actually not in the market, nor am I an astro shooter.  I just find the phenomenon of...

  • An (ideal for) astro lens gets announced,
  • Anticipation for reviews builds up,
  • The review damns its coma performance
  • Astro shooters' hopes are dashed

...to be a real Tantalus/Sissyphus sort of situation. 

I don't revel in their disappointment, mind you -- I'm hopeful this lens delivers and the cycle can be broken, but it's possible physics can only be tamed to a certain degree and astro folks are hoping for too much.  Time will tell.

- A

Maximilian

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #9 on: July 12, 2017, 01:59:21 PM »
... i had to test (brick wall) ...
Oh, I love the artistic approach in these brick wall tests ;)

Or as another Roger once said:
"All in all it's just another brick in the wall.
All in all you're just another brick in the wall."

Seriously:
Thank you for posting, quite impressive.
sometimes you have to close your eyes to see properly.

chrysoberyl

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #10 on: July 12, 2017, 02:18:57 PM »
This lens is now in stock at B&H (stateside).
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basketballfreak6

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #11 on: July 12, 2017, 04:17:18 PM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

i am hoping to change that soon lol, hoping for a clear night over the next week when i have a day off and i will be out doing some MW stuff

... i had to test (brick wall) ...
Oh, I love the artistic approach in these brick wall tests ;)

Or as another Roger once said:
"All in all it's just another brick in the wall.
All in all you're just another brick in the wall."

Seriously:
Thank you for posting, quite impressive.

lol all good, i actually did shots around the house and backyard and can definitely confirm at least that the sharpness is excellent, but yea brick walls are easier to demonstrate any issues haha

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #12 on: July 12, 2017, 04:43:36 PM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

Lol. Agreed... But as an astro photographer I don't need autofocus on this lens, so the new Rokinon SP 14mm f2.4 is way at the top of my list. It's amazingly sharp and about half the price. Based on what I've seen from the Rokinon, I can't image the Sigma will be worth the extra money for me personally.

TDP's review of the Samyang 14mm f/2.4 was pretty underinspiring as are their sample images.  Compared with the much cheaper 14mm f/2.8 distortion is better controlled, but sharpness takes a step backward or sideways anyway.  I'm looking forward to the coma results on the new Sigma lens.  Given that it is razor sharp and f/1.8 this could be the killer night sky lens astrophotographers have been waiting for.
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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #12 on: July 12, 2017, 04:43:36 PM »

basketballfreak6

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #13 on: July 12, 2017, 04:54:14 PM »
And a jillion astro photographers smash their keyboards in frustration that they still don't have coma data yet.

- A

Lol. Agreed... But as an astro photographer I don't need autofocus on this lens, so the new Rokinon SP 14mm f2.4 is way at the top of my list. It's amazingly sharp and about half the price. Based on what I've seen from the Rokinon, I can't image the Sigma will be worth the extra money for me personally.

TDP's review of the Samyang 14mm f/2.4 was pretty underinspiring as are their sample images.  Compared with the much cheaper 14mm f/2.8 distortion is better controlled, but sharpness takes a step backward or sideways anyway.  I'm looking forward to the coma results on the new Sigma lens.  Given that it is razor sharp and f/1.8 this could be the killer night sky lens astrophotographers have been waiting for.

i actually had the 14 2.4 from samyang for a little while and thought the sharpness was very good and very acceptable even to the corners wide open...except my copy had an issue with top right corner being bad no matter the f stop (i can get it looking good but it seems to throw focus out slightly rest of the frame, not sure if it's some kind of misalignment of elements or whatever), i got in contact with the distributor of samyang lenses in australia and was told that he had quite a few copies sent back indicating quality control issues at least with the batch he had, so i ended up returning it

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #14 on: July 12, 2017, 05:08:03 PM »
... i had to test (brick wall) ...
Oh, I love the artistic approach in these brick wall tests ;)


Me too.  I especially love how people assume that all brick walls are actually straight.  T'ain't so.  I could name a few masons that... ahem.

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Re: Sigma 14mm f/1.8 DG HSM Art Sharpness Tests from Lensrentals.com
« Reply #14 on: July 12, 2017, 05:08:03 PM »