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Author Topic: Sigma 50mm f/1.4 DG HSM Art  (Read 81602 times)

wickidwombat

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #15 on: April 29, 2014, 11:55:37 AM »
It's funny but as for the last one there and a couple of others, the person OOF is actually the same sharpness I would get with the 50 L, and then my eyes move around and suddenly see where you focused, and seems VERy sharp. I'm guessing you have pretty high iso also. Thanks again!

yeah they were iso 6400

none of these have had any colour changes NR or sharpening / clarity, just exposure tweeks
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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #15 on: April 29, 2014, 11:55:37 AM »

Viggo

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #16 on: April 29, 2014, 12:30:45 PM »
It's funny but as for the last one there and a couple of others, the person OOF is actually the same sharpness I would get with the 50 L, and then my eyes move around and suddenly see where you focused, and seems VERy sharp. I'm guessing you have pretty high iso also. Thanks again!

yeah they were iso 6400

none of these have had any colour changes NR or sharpening / clarity, just exposure tweeks

That is sweet! I see that it has a tad lower contrast @f1.4, but I can imagine it will clean up really nice with a ColorChecker profile. Can't wait to have a go with mine.

Btw your "test pictures" all have a high quality to them, nice shooting!
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wickidwombat

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #17 on: April 29, 2014, 12:32:31 PM »
It's funny but as for the last one there and a couple of others, the person OOF is actually the same sharpness I would get with the 50 L, and then my eyes move around and suddenly see where you focused, and seems VERy sharp. I'm guessing you have pretty high iso also. Thanks again!

yeah they were iso 6400

none of these have had any colour changes NR or sharpening / clarity, just exposure tweeks

That is sweet! I see that it has a tad lower contrast @f1.4, but I can imagine it will clean up really nice with a ColorChecker profile. Can't wait to have a go with mine.

Btw your "test pictures" all have a high quality to them, nice shooting!

thanks i was trying to go for something other than the usual cats and door knobs that are usually the first test shots :P
« Last Edit: April 29, 2014, 12:42:22 PM by wickidwombat »
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wickidwombat

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #18 on: April 29, 2014, 12:40:15 PM »
oh yeah here is a 100% crop of a pearl tower shot
it wasn't even a clear day so lots of atmospheric interference to reduce sharpness
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TWI by Dustin Abbott

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #19 on: April 29, 2014, 03:26:07 PM »
Some great looking images.  I'm impressed.  Good examples...and good photography!
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Viggo

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #20 on: April 30, 2014, 12:32:05 PM »
These images are from raw to jpeg, I have done nothing except sharpening and a ColorChecker color profile in Lr.

Want to add that although she appears to stand still, she is all over ;oP



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distant.star

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #21 on: April 30, 2014, 01:36:22 PM »
.
Thanks for the images. Very helpful!

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #21 on: April 30, 2014, 01:36:22 PM »

Dylan777

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #22 on: April 30, 2014, 08:24:44 PM »
These images are from raw to jpeg, I have done nothing except sharpening and a ColorChecker color profile in Lr.

Want to add that although she appears to stand still, she is all over ;oP





Looks like 85L II @ f1.4 with faster AF, Viggo ;)
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Viggo

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #23 on: May 01, 2014, 02:18:40 AM »
Actually, the 85 bends a little in the corners, have quite a lot more ca and isn't nearly as sharp to my eyes, I never thought I would say that. This 50 is indeed the 50 I have been wanting since I first bought a canon f1.4 back when I had the 350d rebel.

It's the sort of lens you have your morning coffee a little faster to go shoot with. That's not a lot of lenses that can do that, bc I love my coffee, lol.
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sagittariansrock

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #24 on: May 01, 2014, 02:41:06 AM »
Beautiful pictures, WW and Viggo.
This lens looks like a winner- I don't think it compromises at all on the bokeh. It is as good as if not better than the 50L shots I have seen. At least, in my opinion.
Bravo Sigma!
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Eldar

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #25 on: May 01, 2014, 02:46:15 AM »
QUESTION: I have just connected the docking for the Sigma and wanted to go through the 4-distance focus adjustment. But I realized I do not have a clue what the scales are. How did you determine how much you adjusted for each distance?
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Eldar

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #26 on: May 01, 2014, 11:39:45 AM »
I had big plans for today, but work caught up with me and I spent most of the day indoors. But I am so eager to find out if the AF system of this lens works, so I have had to run around a bit to test that. I have done low light (1/50s, f1.4, ISO8000) shots and some outdoor shots.

I have only done f1.4 shots in Av, with single point focus, and AF set to One Shot. ISO has been set to 100 as much as possible. In some cases I hit the roof at 1/8000s, so the f-stop increased a bit. But the most interesting are of course the low light indoor shots.

And so far I am VERY pleased.

I am very close to a 100% keeper rate (if you ignore the fact that 99% of the images are rubbish). The only one I had problems with was a fairly slim glass candlestick, where it consistently focused on the plane behind it. Color, bokeh, CA and all the rest is not something I have spent much time on yet, but I have seen nothing I can´t live with. Quite the contrary.

I could have posted pages of images to confirm this, but considering the rubbish motives, I´ll limit my self to one of the Local Lion. The reason for shooting images of the cat (yes, I know all the jokes of door nobs, cats and cutlery...) the detail you can find in his fur has lots of information and it is very easy to see if you nailed it or not. The focus point is on his left eye (to your right).

5DIII, 1/8000s, f1.4, ISO100
« Last Edit: May 01, 2014, 11:42:33 AM by Eldar »
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Viggo

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #27 on: May 01, 2014, 02:03:19 PM »
That's great news Eldar!

Btw how did FoCal treat your 50? Mine was completely different with different distances. And I'm still struggling very hard to get things sharp, it's nearly there and a few times complete misses, but the kids faces are a nightmare always.

Did you find out how to calculate distance afma with the docking?
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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #27 on: May 01, 2014, 02:03:19 PM »

kaihp

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #28 on: May 01, 2014, 02:08:11 PM »
Damn, I had just convinced myself that I don't need a 50mm lens, but really a 85mm. And then Sigma does this ??? :o

Sigma, please hurry up with that 85A!  :)

Eldar

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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #29 on: May 01, 2014, 02:23:35 PM »
That's great news Eldar!

Btw how did FoCal treat your 50? Mine was completely different with different distances. And I'm still struggling very hard to get things sharp, it's nearly there and a few times complete misses, but the kids faces are a nightmare always.

Did you find out how to calculate distance afma with the docking?
No, I have no clue on how I use the scale with the docking software. I hope someone will explain.

On the other hand, it seems the AFMA I did is OK (just one go at 2.5m, haven´t had time to do more). But I was quite concerned when I saw the spread/setting. So FoCal concluded only a Good match, but in practical terms its been phenomenal so far. I have not been shooting anything that moves yet and all shots so far is One Shot, no AI Servo.

My wife and I had an evening walk and I tried to find something to challenge bokeh. Here´s one with a bit difficult lighting conditions. I have lifted the shadows quite a bit. I had spot focus on the lower large flower.

5DIII, 1/320s, f4.0, ISO50
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Re: Sigma 50mm f/1.4 DG HSM Art
« Reply #29 on: May 01, 2014, 02:23:35 PM »