August 30, 2014, 06:52:51 PM

Author Topic: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos  (Read 16242 times)

infared

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #75 on: May 07, 2014, 08:45:03 AM »
For me personally I find the 50L unacceptably soft. If you can see a clear improvement in sharpness in 1024 px in uncropped frames like I can then there is a huge difference. I really don't know what else to say. You can also make the sigma images look just like the Canons @f/1.4 in the in focus areas, just by softening the sigma up, literally there are light room settings that make both indistinguishable for in focus areas but you can't create detail that was never recorded with the Canon. Logically speaking if you get a good copy and ignore the very minor difference between f/1.2 and f/1.4 the Sigma is better in every measurable and conceivable factor. I really don't get why this is so contentious.
Yep, no doubt there is a big difference if it's visible in 1024px photos.  The Sigma wins for sharpness at f/1.4 and for richer color, and for that it's going to attract a lot of photographers.  The difference is certainly visible in the full-res uploaded to Dropbox (Thank you Jason for that).

However, while sharpness and detail are important, they aren't everything there is to know about a lens.  The 50L adds a beauty factor in how it draws a picture.  It just looks pretty, especially for portraits.  Maybe the 50L's slight softness is an advantage for some photos and for some photographers.  I'm eager to see some portrait comparisons with the Sigma 50/1.4.  I'm sure the Sigma will compare well, but it will be interesting to see any differences.

So does that mean that you don't want the 50L to be sharper than the Sigma 50 Art?

If sharpness is your only concern, you shouldn't buy either of these lenses and instead get a 50mm f/1.8 and shoot at f/8, which I'll be much sharper than both of these at 1.4.

sigma is a little sharper at f/1.4 but can't do f/1.2 at all, can't get quite as thin DOF as the 50L, has less realistic color and less pleasing boke.  Personally no, I would not trade off those things for a.little more sharpness; I have a ton of sharp lenses but very few look quite like the 50l.
Um...no bokeh?

Ah, well if bokeh becomes a factor, there is no doubt that the 50L offers thinner depth of field and hence can render more out of focus.  This is not subjective, but rather a fact of f/1.2 vs f/1.4.  I also like the rendering better, though that is subjective.  But that is the whole point, one can crow about sharpness all they like but that is a very one dimensional and frankly inaccurate summation of a lens.
Well...I think the whole point is sharpness (wide open) and nice bokeh. So many wide lenses are not even close to sharp wide open... I agree tho. I think that both of these lenses (and the Sigma 50mm f/1.4 DG) all have good sharpness wide open and they all have different renderings.  I can totally see where someone would like the Canon, as it is clearly no slouch and does have the superior softness in the rendering of the bokeh, but I also feel that the sharpness and contrast is superior in the Sigma (and the price) so I can see it is personal like or dislike for each look.  (and I am not even going to touch the AF discussion...it is so complicated...arrrrgggghhh..LOL).
I think all three of the lenses I am mentioning are great for different reasons.  Makes buying just one kind of tough...but then if you have a REALLY good shot...is anyone going to notice which lens it was???  LOL. That is a whole other discussion too!!!!
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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #75 on: May 07, 2014, 08:45:03 AM »

Ruined

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #76 on: May 07, 2014, 06:30:21 PM »
Ah, well if bokeh becomes a factor, there is no doubt that the 50L offers thinner depth of field and hence can render more out of focus.  This is not subjective, but rather a fact of f/1.2 vs f/1.4.  I also like the rendering better, though that is subjective.  But that is the whole point, one can crow about sharpness all they like but that is a very one dimensional and frankly inaccurate summation of a lens.
Well...I think the whole point is sharpness (wide open) and nice bokeh. So many wide lenses are not even close to sharp wide open... I agree tho. I think that both of these lenses (and the Sigma 50mm f/1.4 DG) all have good sharpness wide open and they all have different renderings.  I can totally see where someone would like the Canon, as it is clearly no slouch and does have the superior softness in the rendering of the bokeh, but I also feel that the sharpness and contrast is superior in the Sigma (and the price) so I can see it is personal like or dislike for each look.  (and I am not even going to touch the AF discussion...it is so complicated...arrrrgggghhh..LOL).
I think all three of the lenses I am mentioning are great for different reasons.  Makes buying just one kind of tough...but then if you have a REALLY good shot...is anyone going to notice which lens it was???  LOL. That is a whole other discussion too!!!!

Sure, and this is the type of intellectual discussion that is more befitting of this type of equipment.  In photography, there is no such thing as 'the perfect lens,' everything has tradeoffs.  Whether it is sharpness, flare, bokeh, aperture, autofocus, cost, weight, size, etc - everything has a tradeoff.  For example - even a big, heavy, metal-encased, recently redesigned, highly praised, and expensive lens like the Canon EF 24mm f/1.4L (which I own) has more flare and less sharpness at narrow landscape apertures than the much more modest Canon EF 24mm f/2.8 IS. 

Your discussion is where I am going, in that everyone has a preference and desire, with many factors that go into this. A lot of it factors into what you will be shooting.  I shoot people mainly, so bokeh is huge and sharpness is less important.  People actually tend to dislike sharpness as it exposes skin flaws.  I do have the Canon EF 100m f/2.8L Macro if I want to go razor sharp, as that lens is as sharp as it gets corner to corner and the boke level at f/2.8 is somewhat similar to 50mm @ 1.4 (50/1.4=35.7, 100/2.8=35.7).  But, people tend to dislike that skin-pore exposing effect and I get very positive feedback to the 'look' of the 50L.  Whether it is being a bit softer, or having more smooth boke, either way the 50L makes my customers happy. For others, it might be a total fail.

On the same token, preferences like color as you mentioned above can differ as well.  I use dual Dell u2413 monitors (1xlandscape, 1xportrait) hardware calibrated at 6.5k/120 (not Eizos but pretty decent), and to me the sigma shots look oversaturated.  The wood in the shot with the wood knife block for instance just looks oversaturated and less realistic than the Canon shot.  The flowers look too contrasty, for me to the point of being caroonish.  But, someone else might like that contrasty look.  Yes, all of this can be adjusted in post (as others mentioned), but at the price points of these lenses post compensation should not be a factor.  Besides, if you bring all the stuff you can do in post into the discussion, there is little point in discussing the lens differences in the first place :)

You also bring up a good point about autofocus.  The 50L has focus shift when stopped down (design tradeoff, most evident at f/2 close range) including current builds.  I have heard the autofocus on the Sigma 50 1.4 is even more erratic, though that may also be a case of focus shift - hard to tell when first released based on reviews.  Either way, though, one should consider a high precision focus screen such as the Eg-S with either of these lenses so one can actually see what is truly in focus & manual focus when needed - the stock screen won't cut it with these ultra fast lenses!

« Last Edit: May 07, 2014, 06:44:27 PM by Ruined »

rocksubculture

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #77 on: May 08, 2014, 07:39:04 PM »
Since some have found my original files useful, I was shooting some for my own comparison (this time paying more attention to focus accuracy) and thought I would share.

As with before, these are just random "walking around snaps" - not meant to be artful photos, but to compare these lenses against one another in different scenarios.

I paid more attention to focus this time, and found that there are instances in which both lenses "miss".  I used center (1 PT AF) in all instances, and generally framed my shots so that the focus point was pretty much dead center.  I just took one to two shots of each subject/scene each time, so it wasn't a matter of picking "the best", but just making sure focus was complete (red flash box) and shot.

All shots were at f/1.4 except for a couple of the exterior shots (landscape) - see EXIF for those.

A few were shot in a very dark utility room (the water timer and hanging keys) and some in medium light.

This time I shot in RAW, and I will put all of the original, OOC RAW files on DropBox shortly.

Again, I had the Canon 50mm f/1.2L on one Canon 5D Mark III and the Sigma 50mm f/1.4 ART on another Canon 5D Mark III.  And again, I manually adjusted shutterspeed but had both set on Auto ISO. 

I have not adjusted/micro adjusted either lens to any of my bodies - just at default settings.

These are the versions saved down to 1024 wide in Lightroom (otherwise as shot OOC)...

One observation...  when I shot in camera as JPEGs, the Sigma was much more vibrant.  This is true as RAWs too, but...  looking at the images saved as JPEGS, looking at the second set below (the bowl of blood oranges), the Canon looks much more vibrant than the Sigma, so they don't translate into JPEG (via Lightroom) in the same way they do when shot in camera, if that makes any sense.  As I scrolled my preview for this post, I thought maybe I had misordered them, but it is Canon on top and Sigma below...  If you pull my RAW originals off Dropbox (link soon), you'll see what I'm talking about.

In each case, CANON is the top image and SIGMA is the lower image in each set:













































































































































Jason

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #78 on: May 08, 2014, 08:07:00 PM »
These are fantastic. Thanks for the extra pictures. Unfortunately they only make me want my lens that much more. This preorder wait is brutal.

privatebydesign

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #79 on: May 08, 2014, 08:09:45 PM »
Thanks very much, that is a far more valuable comparison, interesting that the much talked about colour and contrast difference isn't actually there, also the bokeh, especially on the lights on the TIVO (?) are so similar this time with the same AF point.

In truth it seems the differences are miniscule, as I tried to point out before. Where I would expect to see a usable difference would be 1; at f1.2, obviously the Sigma doesn't do that. 2; off center focus, I would think you could be much more creative with focus and composition with the Sigma.

Thanks again, I will be downloading the RAW's ASAP, as I said before I tried to do a close comparison with your other full sized jpegs but the focus was all over the place so it didn't work, these are perfect. Also very interesting that ypu had similar focus inconsistencies with both lenses, one more thing to not push a decision one way or the other.
« Last Edit: May 08, 2014, 08:11:24 PM by privatebydesign »
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rocksubculture

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #80 on: May 08, 2014, 08:22:02 PM »
The RAWs are still uploading on my end - I'll post a link once they are all up.

Yeah, I found both lenses to be inconsistent on focusing, especially if shooting something small, single-point, from say six feet away.  But even some closer ones were off - like the Sigma with the pear-shaped candles it missed the tag I focused on and IIRC the first TiVo emblem shot missed also.  But similar results with the Canon on other shots.

I did experiment with some shots in near darkness (not posted here), with the Canon at f/1.2 and Sigma at f/1.4 - the Canon was less noisy at the high ISO and found the single point focus better (but still struggled - had to find a true point of contrast).  So that is a small edge to the Canon on that front.  But it was so dark both sets of images looked bad, just wanted to push to the limits to see what they would do.

I hope to have a chance to experiment with some portraits over the next week or so, as well as nighttime shots with small lights to compare the OOF bokeh on them and bokeh effects overall.

Jason

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #81 on: May 08, 2014, 09:41:05 PM »
Again...thanks for the posts.  Very interesting and helpful.  I agree, the differences in this set range from very minor to imperceptible.  I can see a few instances were I like the bokeh better with the 50L, but others where I like the sharpness and detail of 50A.  But, for the most part, the images are extremely similar.  With Viggo coming around to trusting the AF..... :D

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #81 on: May 08, 2014, 09:41:05 PM »

rocksubculture

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #82 on: May 08, 2014, 09:51:06 PM »
Here is the link to the RAW files on Dropbox:

https://www.dropbox.com/sh/8qzabpem293spp6/AABUczvDztiTKF0bZRvsdAPHa

Jason

infared

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #83 on: May 08, 2014, 11:27:13 PM »
Here is the link to the RAW files on Dropbox:

https://www.dropbox.com/sh/8qzabpem293spp6/AABUczvDztiTKF0bZRvsdAPHa

Jason

MORE IMPORTANTLY...in the second set of photos your dog moved his head between shots.  I hope you are going to have a word with him regarding that!  :-X
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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #84 on: May 09, 2014, 02:48:05 AM »
Thanks for taking the time to do the comparisons.  It is interesting that the color differences are much closer in the RAW comparisons.  It is possible that the lack of a specific lens profile for the Sigma 50mm 1.4 ART affected the color rendition in Lightroom?   I definitely prefer more neutral colors of the 1.2L compared to the Sigma . I was leaning towards the 1.2L but after seeing the RAW comparisons , I'm not so sure anymore.

It would be great if you can experiment with portraits.  It would be interesting to see the differences in skin tones between the lenses. 

sanj

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #85 on: May 09, 2014, 03:01:09 AM »
Dog! I am officially blind now. Cant see any worthwhile difference. Am lying. Hardly can see any difference.

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #86 on: May 09, 2014, 09:36:01 AM »
Thank you for your continued contributions to the Sigma v Canon debate :)  I'm glad these shots are closer to each other and the Tivo LEDs now match in size, so that and some of the other details make this more useful.

Now that you've had both lenses together for a little while, can you comment on the ergonomics of using them?  I realize this is a lot more subjective, but how does the Sigma's weight and balance (front or back heavy, balanced?) feel in hand?  Which one is more enjoyable to use?  If the IQ was exactly the same, which one would you prefer?
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infared

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #87 on: May 09, 2014, 12:49:22 PM »
Thank you for your continued contributions to the Sigma v Canon debate :)  I'm glad these shots are closer to each other and the Tivo LEDs now match in size, so that and some of the other details make this more useful.

Now that you've had both lenses together for a little while, can you comment on the ergonomics of using them?  I realize this is a lot more subjective, but how does the Sigma's weight and balance (front or back heavy, balanced?) feel in hand?  Which one is more enjoyable to use?  If the IQ was exactly the same, which one would you prefer?

I read somewhere that if you want to manual focus the lens that the Sigma is a JOY to use and that the Canon handled like "a greased pig".   Which would you rather hold?? I am guessing that the focus on the Canon (I have never used one), is like the manual focus on my 85L.  It makes me nervous to even hold the lens (I do love that lens)..because the focus ring just spins...there is no damping....if the Sigma is like my Sigma 35...it would be MUCH more stable in the hand for general use compared to the Canon, no?
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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #87 on: May 09, 2014, 12:49:22 PM »

mackguyver

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #88 on: May 09, 2014, 01:10:47 PM »
Thank you for your continued contributions to the Sigma v Canon debate :)  I'm glad these shots are closer to each other and the Tivo LEDs now match in size, so that and some of the other details make this more useful.

Now that you've had both lenses together for a little while, can you comment on the ergonomics of using them?  I realize this is a lot more subjective, but how does the Sigma's weight and balance (front or back heavy, balanced?) feel in hand?  Which one is more enjoyable to use?  If the IQ was exactly the same, which one would you prefer?

I read somewhere that if you want to manual focus the lens that the Sigma is a JOY to use and that the Canon handled like "a greased pig".   Which would you rather hold?? I am guessing that the focus on the Canon (I have never used one), is like the manual focus on my 85L.  It makes me nervous to even hold the lens (I do love that lens)..because the focus ring just spins...there is no damping....if the Sigma is like my Sigma 35...it would be MUCH more stable in the hand for general use compared to the Canon, no?
I saw that, too (here), but I think "greased pig" might be a bit hyperbolic (as is Roger's style), because that would mean that nearly all L lenses are greased pigs.  The 85L with it's focus-by-wire does suck (I don't fool with it all and actually disable it in my 5DIII and 1D X), but the 50L is a mechanical focus just like the 24-70, 70-200, etc.  The TS-E lenses and 180L macro have smoother focus mechanisms than most Canon's, but none of them match Zeiss or other "fine" lenses.  I was asking Jason for his opinion because he's not a silly guy like Roger (who's stuff I like, btw).
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rocksubculture

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #89 on: May 09, 2014, 02:58:46 PM »
Now that you've had both lenses together for a little while, can you comment on the ergonomics of using them?  I realize this is a lot more subjective, but how does the Sigma's weight and balance (front or back heavy, balanced?) feel in hand?  Which one is more enjoyable to use?  If the IQ was exactly the same, which one would you prefer?

In terms of ergonomics only, I would chose the Sigma for more action kind of photography - feels much more rugged and gives you more to work with. The Canon maybe for portraits or stealthy street stuff, since it is really short. Overall I prefer the ergonomics of the Sigma, but I don't mind big/heavy lenses (not that it is really, just compared to the Canon).  Probably my two all-time favorite lenses are the Canon 70-200 2.8 II (and obviously that is a big and heavy lens) and the Sigma 35mm 1.4 Art. So I don't really have a brand bias. For me it's matching what a lens can do for the kind if photography I do.

Jason

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Re: Sigma 50mm f/1.4 ART vs Canon 50mm f/1.2 - Quick Comparison Photos
« Reply #89 on: May 09, 2014, 02:58:46 PM »