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Archive 2014 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great

  
 
popinvasion
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p.1 #1 · p.1 #1 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Maybe I have a magical 1.8 g but other than the ability to achieve 1.4 the sharpness is close. Slight edge to the Sigma, but it's serious pixel peeping to tell them apart. By 2.8 they are identical. The 50 1.8G has a smoother bokeh. I still dig the 50. 1.4 Art, but surprisingly the 50 1.8g is very respectable. Does anyone concur?


Aug 24, 2014 at 05:57 AM
trenchmonkey
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p.1 #2 · p.1 #2 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Not me. The 50 f1.8G was pretty good for ~$200 lens. However, it was the weakest of the trinity...
28 f1.8G/50 f1.8G/85 f1.8G. AF in poor light was so so, IQ really good not great. The Sigma Art is on
another level entirely. Sharpness wide open thru f2.8 is obscene and no AF 50 even comes close. None.
Suggest you fine tune and/or dock the Sigma to see what it can really do. The MTF's don't lie. Game over.
It's nice you're thrilled with the G, I was more than happy to shell out the coin for the A and haven't looked
back. Love the heft of serious glass and it's proven to be a real money maker from day one. The A is SO hot.



Aug 24, 2014 at 06:20 AM
popinvasion
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p.1 #3 · p.1 #3 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


I want to love the 50 art as much as I love the 35 art. Again maybe my 1.8 g is just a superb specimen. I'm going to dock the 50 art again and run through some more shooting but I'm just not getting a breakthrough on it yet. On paper I concur it should be a no brainer.

trenchmonkey wrote:
Not me. The 50 f1.8G was pretty good for ~$200 lens. However, it was the weakest of the trinity...
28 f1.8G/50 f1.8G/85 f1.8G. AF in poor light was so so, IQ really good not great. The Sigma Art is on
another level entirely. Sharpness wide open thru f2.8 is obscene and no AF 50 even comes close. None.
Suggest you fine tune and/or dock the Sigma to see what it can really do. The MTF's don't lie. Game over.
It's nice you're thrilled with the G, I was more than happy to shell out the coin for the A and haven't looked
back. Love
...Show more



Aug 24, 2014 at 06:57 AM
Donzo98
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p.1 #4 · p.1 #4 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Mine wasn't as sharp as I thought it should be either. I took it to Sigma.... and it needed adjustment as I suspected.

Now it's a RAZOR...



Aug 24, 2014 at 09:31 AM
ilnonno
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p.1 #5 · p.1 #5 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Meh, the 50 1.8g is, in my experience, one of the most overvalued lenses in the lineup, and it's bad enough that it has convinced me to never try the 28 1.8 and 85 1.8 (I am sure I am wrong there, but the disappointment was just big enough to steer clear of 1.8g primes altogether).

Mine has been a consistent underperformer (actually, for the few times I even bothered using it), with the only redeeming quality of being better – below f2.8 – than the even weirder 50 1.4 afs...
In my experience (2 samples), its trademarks are:
* mediocre resolution up to f2.5/2.8
* low contrast
* aberrations
* flare
* relevant focus shift
To summarize, just barely better than the old 1.8D it replaced...

Ahhh... God do I feel better now that I ranted and vented about it!
Don't know why I bought it (maybe I bought the internet hype about it, plus it just looked much sharper than the various 50 1.4afs in the shop!), but have been banging my head since, very frustrating purchase!

Of course, glad it works for the OP though! (although, it being on par with the fabled 50A sounds overly mysterious... OP'd better have the 50A checked to truly enjoy it)
Lory



Aug 24, 2014 at 03:55 PM
BenV
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p.1 #6 · p.1 #6 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


I picked up the Sigma 50 and returned it within a few days. Couldn't get consistent autofocus to save my life. 1 out of 4 photos would be acceptably sharp. I'm pretty certain a firmware update would of fixed my issues, but nothing was/is available for the lens yet, so it went back to BH for a refund. Maybe I'll give it another go in a few months, but my 1.8G is a stellar performer, and for $200, can't really go wrong.


Aug 24, 2014 at 05:47 PM
Palmguy
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p.1 #7 · p.1 #7 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


ilnonno wrote:
Meh, the 50 1.8g is, in my experience, one of the most overvalued lenses in the lineup, and it's bad enough that it has convinced me to never try the 28 1.8 and 85 1.8 (I am sure I am wrong there, but the disappointment was just big enough to steer clear of 1.8g primes altogether).

Mine has been a consistent underperformer (actually, for the few times I even bothered using it), with the only redeeming quality of being better – below f2.8 – than the even weirder 50 1.4 afs...
In my experience (2 samples), its trademarks are:
* mediocre resolution up
...Show more

Well, you're right about being wrong. The 28 and 85 are both excellent.



Aug 24, 2014 at 06:14 PM
nick53097
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p.1 #8 · p.1 #8 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


I have 28, 50 and 85 Nikon f/1.8 lenses and all of them just excellent.
(But Sigma 35 f/1.4 Art is much better...)

Edited on Aug 28, 2014 at 01:58 PM · View previous versions



Aug 24, 2014 at 08:45 PM
mshi
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p.1 #9 · p.1 #9 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Maybe I have an exceptionally great 50 1.8D and it's tack sharp without distortion unlike 50 1.8G. In terms of optics, 35 1.8G ED FX has both ED and AS elements, which sets it really apart from 50 1.8G.


Aug 24, 2014 at 08:57 PM
jtra
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p.1 #10 · p.1 #10 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Can you show pictures that would be useful to compare bokeh of the two lenses?


Aug 25, 2014 at 03:40 AM
shujert
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p.1 #11 · p.1 #11 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


popinvasion wrote:
The 50 1.8G has a smoother bokeh.


I love the 50/1.8G and can't justify the 50A because of it, but I find this surprising.



Aug 25, 2014 at 07:18 AM
Mark_L
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p.1 #12 · p.1 #12 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


On the D800 the 1.8G does struggle a bit especially at the corners which need 5.6 to become reasonable:



Not used the sigma yet but the results look like it should be a serious step up:




Aug 25, 2014 at 08:32 AM
mawz
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p.1 #13 · p.1 #13 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


Palmguy wrote:
Well, you're right about being wrong. The 28 and 85 are both excellent.


The 28's a solid lens, but suffers from fairly massive field curvature which results in it being distinctly poor for a lot of landscape applications. It's best used as a wide portrait/street/event lens.



Aug 25, 2014 at 09:35 AM
BenV
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p.1 #14 · p.1 #14 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


mawz wrote:
The 28's a solid lens, but suffers from fairly massive field curvature which results in it being distinctly poor for a lot of landscape applications. It's best used as a wide portrait/street/event lens.


I didn't think field curvature matter at all in landscape...



Aug 25, 2014 at 10:26 AM
mawz
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p.1 #15 · p.1 #15 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


BenV wrote:
I didn't think field curvature matter at all in landscape...


Field curvature matters more in landscape than just about anywhere else except Architecture, particularly when not using UWA's.

Due to the field curvature on the 28/1.8 subjects at the same distance will not be in focus if placed near the edges of the frame rather than in the centre, however much closer subjects will be in focus at the edges.



Aug 25, 2014 at 10:36 AM
Jason_Brook
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p.1 #16 · p.1 #16 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


I've used my 28 more than my 16-35 for landscapes. Never been bothered by any field curvature nonsense.


Aug 25, 2014 at 10:41 AM
M635_Guy
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p.1 #17 · p.1 #17 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


I'm dense - why isn't the more relevant comparison the Nikon 50mm f/1.4G? Still sub-$500 vs. the Sigma. Definitely has some distortion, but it seems like Lightroom has that figured out pretty well...


Aug 25, 2014 at 11:36 AM
mawz
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p.1 #18 · p.1 #18 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


M635_Guy wrote:
I'm dense - why isn't the more relevant comparison the Nikon 50mm f/1.4G? Still sub-$500 vs. the Sigma. Definitely has some distortion, but it seems like Lightroom has that figured out pretty well...


The 50/1.8 is generally considered to be the better performing of the two Nikon 50 G's (this is traditional, the older 50/1.8's and the 50/2 before them also generally outperformed the faster 50/1.4's)



Aug 25, 2014 at 12:01 PM
ohsnaphappy
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p.1 #19 · p.1 #19 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


I completely agree with the OP, except when it comes to big dreamy flare. If you want big flare the 1.4G is better. But if you post a shot at f2 with the 58, Art, 1.4G, and 1.8G there won't be much of a difference. The point is, you better shoot at 1.4 a lot to justify any of the other lenses.


Aug 25, 2014 at 12:08 PM
mawz
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p.1 #20 · p.1 #20 · Sigma 50 1.4 art vs Nikon 1.8g- 1.8G is great


ohsnaphappy wrote:
I completely agree with the OP, except when it comes to big dreamy flare. If you want big flare the 1.4G is better. But if you post a shot at f2 with the 58, Art, 1.4G, and 1.8G there won't be much of a difference. The point is, you better shoot at 1.4 a lot to justify any of the other lenses.


Actually while there's little difference between the two 50G's at f2 (the 1.8 will focus faster, but otherwise little difference), the 58G on the other hand will have notably less DoF (about equivalent to f1.6 on a 50) and smoother OOF rendering, due respectively to the longer focal length and the optical design. The 50 Art at f2 will be much sharper near the edges than either of the 50 G's but otherwise similar.



Aug 25, 2014 at 12:14 PM
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