October 21, 2014, 05:14:34 AM

Author Topic: Review: Sigma 50mm f/1.4 DG HSM Art Lens  (Read 27262 times)

sagittariansrock

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #225 on: May 06, 2014, 09:50:46 PM »
What I would really like to see is a string of photos comparing the Canon and Sigma 50 f/1.4's.  Anyone have access to both?

ive got the
sigma 50 art
sigma 50 1.4 DG
canon 50 1.4
canon 50 1.8 mkII

I just need to get motivated to compare them
I KNOW the art leaves the others for dead so its more for other peoples interest than my own

Do it, wickid! You'll have all our well wishes!
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #225 on: May 06, 2014, 09:50:46 PM »

wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #226 on: May 06, 2014, 10:14:09 PM »
viggo how much sharpening are you adding to those images in LR?
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wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #227 on: May 06, 2014, 11:09:10 PM »
here you go

the lenses
« Last Edit: May 07, 2014, 12:20:59 AM by wickidwombat »
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wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #228 on: May 06, 2014, 11:10:02 PM »
sigma 50mm f1.4 Art
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wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #229 on: May 06, 2014, 11:10:51 PM »
sigma 50mm f1.4 DG
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wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #230 on: May 06, 2014, 11:11:35 PM »
canon 50mm f1.4
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wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #231 on: May 06, 2014, 11:12:44 PM »
canon 50mm f1.8 mk2
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #231 on: May 06, 2014, 11:12:44 PM »

wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #232 on: May 06, 2014, 11:17:01 PM »
this was all shot tethered on a tripod
lit by an LED video light
focused via live view and tweeked on the eyeball of the dragon for peak focus
exposure was set to approximately +1 EV for all shots
Auto White balance

images are JPG straight from the camera
« Last Edit: May 06, 2014, 11:21:17 PM by wickidwombat »
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zlatko

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #233 on: May 07, 2014, 12:26:11 AM »
sigma 50mm f1.4 Art
Interesting.  The two Sigma lenses seem to offer the most background blur.

Viggo

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #234 on: May 07, 2014, 04:38:10 AM »
viggo how much sharpening are you adding to those images in LR?

As stated I added a bit too much to really emphasize the focal point. Redid everything today and it seems the small "macro target" in FoCal isn't working with the 50 at mfd. and infinity I simply couldn't do in FoCal. But now it looks much better. I'm not 100% ready to say it works, but it's much better. The Sigma doesn't seem to like Ai Servo, so I more often tap the button that switch to One Shot and it does the trick. It's slowly turning into a winner here.
« Last Edit: May 07, 2014, 04:39:42 AM by Viggo »
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #235 on: May 07, 2014, 04:52:04 AM »
viggo how much sharpening are you adding to those images in LR?

As stated I added a bit too much to really emphasize the focal point. Redid everything today and it seems the small "macro target" in FoCal isn't working with the 50 at mfd. and infinity I simply couldn't do in FoCal. But now it looks much better. I'm not 100% ready to say it works, but it's much better. The Sigma doesn't seem to like Ai Servo, so I more often tap the button that switch to One Shot and it does the trick. It's slowly turning into a winner here.
I guess it is like riding a bycicle or car....by practice it is getting better and better. Of course a bycicle or car by itself can always have a problem.
Looking forward to getting my Sigma 50mm today.
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wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #236 on: May 07, 2014, 05:38:34 AM »
viggo how much sharpening are you adding to those images in LR?

As stated I added a bit too much to really emphasize the focal point. Redid everything today and it seems the small "macro target" in FoCal isn't working with the 50 at mfd. and infinity I simply couldn't do in FoCal. But now it looks much better. I'm not 100% ready to say it works, but it's much better. The Sigma doesn't seem to like Ai Servo, so I more often tap the button that switch to One Shot and it does the trick. It's slowly turning into a winner here.

Like I said calibrate it manually using the dock and then use focal to check my focal check showed only a +1 change to afma
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #237 on: May 07, 2014, 06:20:29 AM »
viggo how much sharpening are you adding to those images in LR?

As stated I added a bit too much to really emphasize the focal point. Redid everything today and it seems the small "macro target" in FoCal isn't working with the 50 at mfd. and infinity I simply couldn't do in FoCal. But now it looks much better. I'm not 100% ready to say it works, but it's much better. The Sigma doesn't seem to like Ai Servo, so I more often tap the button that switch to One Shot and it does the trick. It's slowly turning into a winner here.

Like I said calibrate it manually using the dock and then use focal to check my focal check showed only a +1 change to afma

What's your luck with say, tracking a car driving away or slower moving subjects in bursts?
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #237 on: May 07, 2014, 06:20:29 AM »

sgtpepper

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #238 on: May 07, 2014, 06:22:16 AM »
viggo how much sharpening are you adding to those images in LR?

The Sigma doesn't seem to like Ai Servo, so I more often tap the button that switch to One Shot and it does the trick. It's slowly turning into a winner here.

This sounds more in line with what I am experiencing with my 50 Art. I generally do not like Ai Servo, so I only use it when it is absolutely necessary, which it hasnĀ“t been yet during the first 10 days of using the 50 Art :-).

I mostly use One Shot AF, with single point spot focus and AF priority (not release priority). With this setting I have consistently good focus behaviour with the Sigma Art 50. I typically shoot portraits, so most of my targets are at 0.5 to 1.5 meters distance, and holding quite still. Also, I typically shoot with sufficient available light to get good exposures at ISO 100 - ISO 400. It is a situation that is not challenging the AF system very much, but at f/1.4 the DoF is very narrow, especially when the subject is close to the camera, so even slight AF inaccuracies will ruin the shot.

Only when subjects are moving too much for me to aim the point of focus in an exact manner I switch to single point focus without "spot", but still i usually prefer to One Shot AF when the movement is slow. I only took a few pictures with that settings so far, and they seem OK, but it is not a good basis for concluding. In any cases, subject motion makes it difficult to objectively blame the lens of any focus misses.

My skill with Ai Servo is too basic to conclude on lens focus performance. It seems to depend solely on my ability hold the camera stable, while pointing at more or less the same location on the moving subject. I would not blame the lens for any focus misses in such situations. I always expect quite a few shots at moving targets to be OoF at f/1.4.

I am very happy with the 50 Art AF performance at the moment, after tuning it in the Sigma USB dock.

wickidwombat

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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #239 on: May 07, 2014, 08:23:04 AM »
viggo how much sharpening are you adding to those images in LR?

As stated I added a bit too much to really emphasize the focal point. Redid everything today and it seems the small "macro target" in FoCal isn't working with the 50 at mfd. and infinity I simply couldn't do in FoCal. But now it looks much better. I'm not 100% ready to say it works, but it's much better. The Sigma doesn't seem to like Ai Servo, so I more often tap the button that switch to One Shot and it does the trick. It's slowly turning into a winner here.

Like I said calibrate it manually using the dock and then use focal to check my focal check showed only a +1 change to afma

What's your luck with say, tracking a car driving away or slower moving subjects in bursts?
Did you see the pic of my daughter coming down the slide in servo at 1.4?
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Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« Reply #239 on: May 07, 2014, 08:23:04 AM »