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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 27 Nov 2016 (Sunday) 11:25
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Mini Review: Sigma 85mm 1.4 ART vs Canon 85L 1.2 II (34 raw images)

 
Talley
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Post edited over 2 years ago by Talley.
     
Nov 27, 2016 11:25 |  #1

I posted this in my other thread but I figured it needs it's own thread.

There are 34 photos total.... 17 scenes... all at F1.4 for each lens focused with live view DPAF for consistency because it just works... no focus errors. I can 100% of the time pick out the ART lens it's that noticeable. 1.1GB total. I broke them into the 17 scenes so they are more manageable and easier to work with:

https://www.dropbox.co​m …Pc2bJTgh0d5xb6y​1cAva?dl=0 (external link)

I highly recommend analyzing ALL scenes if you are on the fence for either. DISCLAIMER: Please be sure white balance is equal to both before comparing and you may have to slightly adjust exposure to match... I tried my best but light conditions are ever changing in real world. I tried my best to get it very close but evidently the white balance did get off in some. I ended up taking much more photos but these are the samples that I feel are closely matched at possible.

Focus speed
The 85L is a dog. I forgot how slow it was. I have some video and I can post a link later if need be but I'll put it to you like this... on a scale of 1 to 10, 10 being the fastest
10: Canon 85 1.8
9: Canon 70-200 2.8 II
8: Sigma 85 ART (possibly a 9 to a 9.5... I need the 85 1.8 to really compare right)
3: Canon 85 1.2 II
1: Canon 180mm Macro

Here is the video of the two. The Canon takes 78 frames total or 2.6 seconds to go from one end and back. The Sigma ART takes 25 frames total or .83 seconds.




Focus Accuracy
So far very impressed but simply need more time. Right now I'd say the hit rate is about 97-98% which is on par with any other Canon glass I've owned.

Sharpness
Canon 85L is just lacking with the ART in the dead center but it's more of a lack of contrast. Edge sharpness the ART dominates.

Contrast
No contest the ART wins. Wide open the ART simply has deeper darker colors and sharper edges. Texture of fabrics, plastics, etc are much more detailed with the art indicating it's micro-contrast resolving power is much higher than the Canon

CA
ART still has some... but no way near the amount the canon has. The Canon leaves a purple glow which when removed via Lightroom dropper technique leaves a harsh low contrast fuzz along lines where the Sigma CA is very fine/defined and using the eyedropper leaves a sharp black line showing MUCH more contrast.

Bokeh

The Canon is just a smidge... and I do mean a very very small amount better even at 1.4 but it's DARN hard to tell the difference. Obviously the Canon can go to 1.2 and will surpass what the ART can do however all things considered if the Canon is 100% good at 1.4 the Sigma is 99% good it's that close.

Weight/Size
The Sigma is indeed heavier/larger however when mounted and compared to the 85L they both really feel about the same. The Canon is front heavy and Ironically enough the Sigma weight is all mostly toward the rear of the lens... holding each setup on my 5D4 with one hand and with both they really feel and balance equally... yes there is a very very small more heft feeling with the ART but I don't feel it when moving the camera around from the hip to the eye switching from one hand to two etc... Sigma did a nice job keeping the weight centered to the back.

Conclusion
There is simply too much gains on the ART to win me over on Canon's 1/3 quicker and 3-4% better bokeh and those quickly go away just on the CA improvement alone... Just don't forget guys the Canon does do 1.2 and will ultimately be the better bokeh machine... You just have to decide of you want A: better bokeh or B: better everything else and 98% bokeh. For me the difference in the bokeh and the fact that 110% of the people would not even see it's difference makes the choice pretty clear.

I've posted a few samples below for those that are simply not interested in downloading the files.


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Talley
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Nov 27, 2016 11:26 |  #2

CA sample:


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Talley
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Nov 27, 2016 11:27 |  #3

CA removed via Eye Dropper in Lightroom:


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Talley
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Nov 27, 2016 11:27 |  #4

Bokeh Sample


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Talley
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Nov 27, 2016 11:27 |  #5

Edge Performance Sample


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Talley
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Nov 27, 2016 11:28 |  #6

Edge contrast/CA/sharpness sample


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Talley
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Nov 27, 2016 11:28 |  #7

Bokeh sample from above


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Nov 27, 2016 13:45 |  #8

Bravo on the efforts you put in on this. I am personally working on my own review, but would like to get more seat time and shoots in with the lens before I finish with it. I'm also moving into a larger place next weekend and will finally have a real office space again and a studio where I can control the testing. From there I may rent the Canon for a week and use it in the field too.


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BlazingSkies
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Nov 27, 2016 13:46 |  #9

Nice review. Can't wait for those Canon fanboys to start ranting about "Sigma sucks the AF sucks". Can't argue with results.




  
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Nov 27, 2016 19:33 |  #10

Thanks for the review, Talley.

A couple comments:
- Your Canon 85 seems to have some problems. It seems to backfocus (car shot) and suffer from asymmetrical spherical aberration (check the letters fading to the left in the cables shot).
- Bokeh should be compared with the Canon at f/1.2.


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Talley
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Post edited over 2 years ago by Talley.
     
Nov 27, 2016 19:53 |  #11

CheshireCat wrote in post #18196473 (external link)
Thanks for the review, Talley.

A couple comments:
- Your Canon 85 seems to have some problems. It seems to backfocus (car shot) and suffer from asymmetrical spherical aberration (check the letters fading to the left in the cables shot).
- Bokeh should be compared with the Canon at f/1.2.

All focusing was performed in live view DPAF to avoid any errors. There was no backfocusing in any shots, I took well over 100 shots total and selected the shots that matched the best.

Bokeh should not be compared with the canon at F/1.2 because the Sigma cannot do 1.2. I compared at 1.4 for a reason. It's up to anyone who reviews this to make their own conclusion. In my conclusion I bolded and underlined that the canon can do 1.2 and that recognized that it would be the better bokeh machine.

DPAF is very accurate and repeatable... for these tests it's preferred to use this method.


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Post edited over 2 years ago by CheshireCat.
     
Nov 27, 2016 19:57 |  #12

Talley wrote in post #18196486 (external link)
Bokeh should not be compared with the canon at F/1.2 because the Sigma cannot do 1.2.

Bokeh should be compared wide open. No one is stopping down a lens for "better bokeh".

Talley wrote in post #18196486 (external link)
DPAF is very accurate and repeatable... for these tests it's preferred to use this method.

The problem is I am afraid your 85L has some issues. Mine is much sharper.


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Talley
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Post edited over 2 years ago by Talley.
     
Nov 27, 2016 20:17 |  #13

CheshireCat wrote in post #18196491 (external link)
Bokeh should be compared wide open. No one is stopping down a lens for "better bokeh".

The problem is I am afraid your 85L has some issues. Mine is much sharper.

Disclaimer: Test performed on one copy 85L that is a UB date code and shows no sign of abuse or misuse and has never been dropped. It's not mine it's my buddies and he purchased new. Again just one copy lens. Maybe what your seeing is the fact the Sigma is much sharper and your not used to that amount of detail? I cannot comment I only have access to this one test and this is the results.

Again I've explained the canon does do 1.2. That is like trying to compare a 1.4 lens to a 1.8 it just cannot compete. I put the two lenses on a fair playing level. Just my feeling. If you feel the test should be performed differently then by all means acquire both lenses and try it out. I'm pretty sure there will be plenty other official reviews from more respected reviewers that will test the canon at 1.2 vs the art... And then everyone will say the art sucks because it doesn't cream the way the 1.2 does... which the ART cannot do.

..I'm just a dad that wanted to see for himself. I always try for myself and draw my own conclusions... from real world hands on use. Feel free to do the same.


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Talley
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Nov 27, 2016 20:24 |  #14

The one review site Lenstip.com had posted this chart from here: http://www.lenstip.com …HSM_Image_resol​ution.html (external link)

Even this shows at F1.4 the sigma has a much higher resolving capability. Look at this 100% crop of a brick wall shot and I would say this level of sharpness matches what Lenstip.com posted on their testing


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Nov 27, 2016 21:10 |  #15

Is it just me or the Canon seems to have a much longer focus throw? Sigma pretty much trumps the Canon hands down. I don't shoot this focal length but always admire what pros come up with.


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Mini Review: Sigma 85mm 1.4 ART vs Canon 85L 1.2 II (34 raw images)
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