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Author Topic: Review: Sigma 50mm f/1.4 DG HSM Art Lens  (Read 74144 times)

Sporgon

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #255 on: May 14, 2014, 05:19:26 AM »
@Viggo, I re traced my search links and my apologies: the flicr boards were dealing with the old Sigma 50 1.4, not the new Art. I'm not picking up the CR threads on this either though, so will keep looking.


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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #255 on: May 14, 2014, 05:19:26 AM »

Viggo

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #256 on: May 14, 2014, 06:04:40 AM »
@Viggo, I re traced my search links and my apologies: the flicr boards were dealing with the old Sigma 50 1.4, not the new Art. I'm not picking up the CR threads on this either though, so will keep looking.

Thanks! Maybe Sigma are working on a firmware and have paid google to remove it. "Eeeeexcelleent" *touching finger tips*
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Eldar

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #257 on: May 14, 2014, 02:04:18 PM »
Here is a typical example of the AF issue.

Single AF point on her right eye. Potentially I could have ended up with a slight front focus in this case, since her eyebrow and hair is closer to me. Instead you can see the focus plane on top of her head.

5DIII. 1/50s, f1.4, ISO6400
« Last Edit: May 14, 2014, 02:15:17 PM by Eldar »
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Eldar

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #258 on: May 14, 2014, 02:06:12 PM »
Here´s another, shot 1 minute earlier. Single AF point on her left eye, spot on.
Same data
« Last Edit: May 14, 2014, 02:16:02 PM by Eldar »
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Eldar

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #259 on: May 14, 2014, 02:18:16 PM »
Here is another, from the canals of Amsterdam, where it worked. Single AF point on the front white deck of the boat.
5DIII, 1/50s, f1.4, ISO6400
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Eldar

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #260 on: May 14, 2014, 02:23:15 PM »
And while we´re at it, here´s one that didn´t work. Single AF point on the right eye of the blonde. As you can see, the focus plane is on the glass.
5DIII, 1/50s, f1.4, ISO12800
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DominoDude

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #261 on: May 14, 2014, 02:54:36 PM »
And while we´re at it, here´s one that didn´t work. Single AF point on the right eye of the blonde. As you can see, the focus plane is on the glass.
5DIII, 1/50s, f1.4, ISO12800

The image quality of the Sigma is great, but the reliability of the AF is so so low that I won't ever buy a Sigma again. I have the earlier version of the 50/1.4 DG EX HSM, and it's the most expensive doorstop I've ever bought.
Only being able to tell in post processing if a shot is a keeper, or not, and it is only luck that decides if you get any keepers at all. Micro focus adjusted mine 3 times and every time I get different amounts of compensation. According to Sigma it's a lens that's within spec's when they have tested it for me.

I hope you will get more consistent, and good, results out of your new Art lens.

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #261 on: May 14, 2014, 02:54:36 PM »

jacksonz

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #262 on: May 14, 2014, 03:12:10 PM »
hiya, just joined the forums for this thread. Bought my 50 art 2 weeks ago and have been trying it out in and out of studio and on my commercial shoots. First 5 shots I took at 1.4 outside the sigma store in shanghai, 2 were completely out of focus, it wasn't even an issue of focus shift, like NOTHING was in focus. The other 3 were amazing sharp at 1.4. In studio, half body and closeups were amazing at f8. Full body shooting from 4 meters away with a 200w modeling lamp, the lens would focus 1 feet in front of the model 50% of the time... adjusted +6 in a 5dmk2 and single point focus, the shift was much better but still some 'soft' images. Outdoors in bright sunlight almost all images were dead on. I thought I had a bad copy and was going to swap it, but by the looks of it I'm not going to bother.

I still think i'll keep it as when the focus is right, this lens in incredible.. but I won't be using it for my commercial work much as the inconsistency is way too much.

Viggo

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #263 on: May 14, 2014, 03:42:51 PM »
I had only been shooting that lens for nearly two weeks, and started trying and comparing to the 85 L and I couldn't believe the difference, I had almost gotten used to all the oof shots from the Sigma. I just deleted and moved on, but trying the same subject 5-10 times and it's ten meters in front just isn't acceptable. The 85 is like glue!
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razeac

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #264 on: May 14, 2014, 05:24:31 PM »
autofocus issues are really disturbing  :o  .. but I'm just trying to enjoy the lens with MF assist  :) I remember my wedding photographer, he had this d3 with some of the most amazing nikon lenses, but still i can notice him using mF...


« Last Edit: May 14, 2014, 05:40:10 PM by razeac »

skitron

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #265 on: May 14, 2014, 07:28:21 PM »
But I will take a stab at it and say this is done by Canon, a small disturbance in the firmware that handles AF communication. Would be VERY interesting to try my lens mount converted to a Sigma camera.

I rather doubt it is Canon firmware since it would be a pain to write code to make it drift after a period of time. Now making it have random misses all the time is a different story, that would be easy to code. Who only knows if Canon would bother with such a thing....
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metacove

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #266 on: May 14, 2014, 11:45:02 PM »
So.... To those that have used both. If I can purchase the 50mm Art or the 50mm 1.2L which should I choose ? I'm still leaning toward the art because my 35 Art is amazing.


Viggo

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #267 on: May 15, 2014, 01:08:43 AM »
So.... To those that have used both. If I can purchase the 50mm Art or the 50mm 1.2L which should I choose ? I'm still leaning toward the art because my 35 Art is amazing.

I can't tell you honestly, I don't think I'll go back to the 50 L as I like to shoot up close and off center. And I really don't like the 50 L for those purposes, IMO it's just way too soft to be useful at the largest apertures. If I were you I would seriously consider the 85 L and if that isn't too long it's the best portrait lens I've tried.  For me it's a tad too long as I love the 50, but the difference in overall IQ over the 50 L is so worth it.
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #267 on: May 15, 2014, 01:08:43 AM »

wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #268 on: May 15, 2014, 05:39:58 AM »
So.... To those that have used both. If I can purchase the 50mm Art or the 50mm 1.2L which should I choose ? I'm still leaning toward the art because my 35 Art is amazing.

I've got both and the 35 art is amazing but the 50 art is amazinger...
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metacove

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #269 on: May 15, 2014, 03:24:51 PM »
I just called Sigma's American office. The lady I spoke to put me on hold when I asked about availability of the 50mm Art. After she returned she mentioned that they are getting their next shipment of Art lenses next week. I asked if they were getting a significant amount and she said she couldn't say (as in she didn't know).

Hopefully several preorders get fulfilled next week.

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #269 on: May 15, 2014, 03:24:51 PM »