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Author Topic: Sigma Announces the 50 f/1.4 Art Lens & More  (Read 98890 times)

Ruined

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #210 on: January 15, 2014, 09:38:38 AM »
Hands on: Sigma 50mm f/1.4 Art ignores Canon L, Nikon glass and targets Zeiss Otus. No, really.
http://www.imaging-resource.com/news/2014/01/08/sigma-50mm-f-1.4-art-targets-zeiss-otus-ignores-canon-l-nikon-glass

Not surprising, and what I expected given the similar retrofocal design.

I don't believe the Canon double gauss design is inferior to the retrofocal design.  They have different design goals.

Canon's 50mm f/1.2 double gauss design purposely does not correct a good portion of the spherical abberation in order to provide more dreamy bokeh, and this remaining spherical abberation while providing a more dreamy look contributes to the challenges in focusing at more narrow apertures.  Results are superior bokeh, comparable small size, wider aperture.  Think of it as a modern-day compromise between good sharpness and a soft focus lens.

On the other hand, the retrofocal design is much larger and more complex - the advantage being that more elements can be introduced to correct and manipulate the incoming light.  Results can be great sharpness, comparable larger size, but bokeh is not as dreamy (as correcting more of the spherical abberation is one of the reasons for the increased sharpness) - aperture also slower.

So, the bottom line is:
Canon f/1.2 (Double Gauss) - buy if you want the more dreamy bokeh/wider max aperture/smaller size
Retrofocal Design - buy if you want more sharpness/narrower max aperture

I think the Canon would be better for weddings and model photography, while the retrofocal designs might be better for projects where you need maximum sharpness.  Personally, I already have a whole collection of super sharp lenses and bought the Canon specifically for its flattering presentation of couples/weddings, where seeing every pore and wart is not necessarily desired - plus the fantastic bokeh.
« Last Edit: January 15, 2014, 09:45:37 AM by Ruined »

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #210 on: January 15, 2014, 09:38:38 AM »

Eldar

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #211 on: January 15, 2014, 10:38:40 AM »
Having bought the Otus, I´m not sure how much I Should look forward to a full review of this lens, but never the less I Really do.

I also fully agree with Ruined, about his assessment of the value of the 50 f1.2L. You don´t always want the extreme sharpness and reveal every little ugly detail, but rather have the creamy and beautiful bokeh. I must say though that I find the bokeh from the Otus is quite acceptable.

I don´t have any doubts that the Sigma will be superb in sharpness. But I wonder how the bokeh will be.

mackguyver

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #212 on: January 15, 2014, 10:55:08 AM »
Having bought the Otus, I´m not sure how much I Should look forward to a full review of this lens, but never the less I Really do.

I also fully agree with Ruined, about his assessment of the value of the 50 f1.2L. You don´t always want the extreme sharpness and reveal every little ugly detail, but rather have the creamy and beautiful bokeh. I must say though that I find the bokeh from the Otus is quite acceptable.

I don´t have any doubts that the Sigma will be superb in sharpness. But I wonder how the bokeh will be.
Eldar, given the sample shots you've posted, I'd say the bokeh from the Otus is more than okay!  I also wonder about the new Sigma's bokeh and plan to buy one for comparison.

For owners of the 35 Art, how does the build quality compare to the L lenses?  That's the other reason I bought the 50L and as I haven't actually held 35 Art, I'm wondering how they match up.
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Eldar

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #213 on: January 15, 2014, 11:26:52 AM »
Having bought the Otus, I´m not sure how much I Should look forward to a full review of this lens, but never the less I Really do.

I also fully agree with Ruined, about his assessment of the value of the 50 f1.2L. You don´t always want the extreme sharpness and reveal every little ugly detail, but rather have the creamy and beautiful bokeh. I must say though that I find the bokeh from the Otus is quite acceptable.

I don´t have any doubts that the Sigma will be superb in sharpness. But I wonder how the bokeh will be.
Eldar, given the sample shots you've posted, I'd say the bokeh from the Otus is more than okay!  I also wonder about the new Sigma's bokeh and plan to buy one for comparison.

For owners of the 35 Art, how does the build quality compare to the L lenses?  That's the other reason I bought the 50L and as I haven't actually held 35 Art, I'm wondering how they match up.
I have the Sigma 35/1.4 and I remember the first time I held it and the Zeiss-feeling it gave me. It is plastic in some areas where Zeiss is metal, but so are the L-series. It does not have a hard stop at MFD and infinity, but the L-series are the same (well, not all of them).

It is not weather sealed, which is an issue for me, even though it has not been a problem so far. Well I think it has not been a problem. For the AF on my copy started drifting and a recent AFMA was 7 points different to the initial AFMA I did when I bought it. If that repeats itself, I´ll send it in and we´ll see what Sigma says. Maybe some moisture has entered the body and done something.

Being an f/1.4 lens I would have preferred to have a little more movement for the focusing mechanism. From MFD to infinity is about 45deg. To really fine tune focus it would have been preferable to have at least 60deg for improved precision. The focus drift may have had something to do with that, I don´t know. For comparison, even though not totally relevant, the Otus focusing ring moves about 240deg (visual approximation).

But summing up, the Sigma is very close to the L-series in mechanical build, but not quite the same.

But another comparison. I held the much acclaimed Nikon 14-24 the other day, for the first time. And it might be that my expectations were a bit too high, but that lens gave me a real plastic feeling. Turning the zoom ring was really plastic. So compared to that, I would say the Sigma feels very good.

« Last Edit: January 15, 2014, 11:34:56 AM by Eldar »

mackguyver

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #214 on: January 15, 2014, 12:10:41 PM »
I have the Sigma 35/1.4 and I remember the first time I held it and the Zeiss-feeling it gave me. It is plastic in some areas where Zeiss is metal, but so are the L-series. It does not have a hard stop at MFD and infinity, but the L-series are the same (well, not all of them).

It is not weather sealed, which is an issue for me, even though it has not been a problem so far. Well I think it has not been a problem. For the AF on my copy started drifting and a recent AFMA was 7 points different to the initial AFMA I did when I bought it. If that repeats itself, I´ll send it in and we´ll see what Sigma says. Maybe some moisture has entered the body and done something.

Being an f/1.4 lens I would have preferred to have a little more movement for the focusing mechanism. From MFD to infinity is about 45deg. To really fine tune focus it would have been preferable to have at least 60deg for improved precision. The focus drift may have had something to do with that, I don´t know. For comparison, even though not totally relevant, the Otus focusing ring moves about 240deg (visual approximation).

But summing up, the Sigma is very close to the L-series in mechanical build, but not quite the same.

But another comparison. I held the much acclaimed Nikon 14-24 the other day, for the first time. And it might be that my expectations were a bit too high, but that lens gave me a real plastic feeling. Turning the zoom ring was really plastic. So compared to that, I would say the Sigma feels very good.
Thanks for the great information and I hope things work out with your Sigma 35/1.4.  It sounds like the new 50 could be quite a lens if it lives up the hype (unlike your Nikon 14-24 experience).
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NancyP

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #215 on: January 24, 2014, 12:01:17 PM »
Some fun can be had with old f/1.2 and f/1.4 film lenses of the double Gauss (Planar) design. Low contrast and tons of aberration at f/1.2, but the dreamy look can be had for 300 bucks if old film lenses are adapted. Of course, then you have manual focus and manual aperture and no electronic feedback to deal with. I have been enjoying an old Nikkor 50mm f/1.2 on my 6D. It's a b... to focus at f/1.2, and the bokeh isn't up to the 50L quality, but still, it's fun, and the lens is sharp sharp sharp at f/2.8-5.6.

Viggo

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #216 on: January 28, 2014, 05:22:56 AM »
Nothing new about the 50A? No pre order, weight TBA, no price, no word, no rumors, no nothing?
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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #216 on: January 28, 2014, 05:22:56 AM »

Zv

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #217 on: January 29, 2014, 12:39:44 AM »
Nothing new about the 50A? No pre order, weight TBA, no price, no word, no rumors, no nothing?

I think they're waiting until CP+ on the 13th - 16th Feb to announce the price etc. I'm tempted to go to it. One Shinkansen ride away for me. Plus they seem to be giving away tickets if you register.
Move along nothing to see here!

Viggo

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #218 on: January 29, 2014, 03:42:04 AM »
Nothing new about the 50A? No pre order, weight TBA, no price, no word, no rumors, no nothing?

I think they're waiting until CP+ on the 13th - 16th Feb to announce the price etc. I'm tempted to go to it. One Shinkansen ride away for me. Plus they seem to be giving away tickets if you register.

Thanks! That makes sense, I still have a couple of 35's to sell, but man! I wanna have a go with that Siggy  ;D
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Zv

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #219 on: January 29, 2014, 05:34:08 AM »
Nothing new about the 50A? No pre order, weight TBA, no price, no word, no rumors, no nothing?

I think they're waiting until CP+ on the 13th - 16th Feb to announce the price etc. I'm tempted to go to it. One Shinkansen ride away for me. Plus they seem to be giving away tickets if you register.

Thanks! That makes sense, I still have a couple of 35's to sell, but man! I wanna have a go with that Siggy  ;D

I know how you feel though about waiting. It seems like forever. I think the price will be around the same as the 35 1.4 Art. The price is not the issue for me it's availability. Take my money Sigma! Just give me it already!!

I also want to see how it stacks up against the old one and the 50L. Doubt I'll buy the 50L ever but I am curious about the creamy bokeh, will this new Sigma provide us the delicious bokeh we all crave??
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robbinzo

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #220 on: January 29, 2014, 05:38:31 AM »
I've been thinking about going Sigma because of AF issues with my Canon 50 f/1.4.
I love the shots I get with it but there used to be so many out of focus shots that it was just infuriating. I was teetering on the brink of selling it.
However, since I bought my 70D, I can nail focus most of the time. Why? Dual pixel AF technology. I am almost exclusively using live view AF now with my nifty fifty and I can report that the results are so many times more consistent than even the very good inherited-from-the-7D AF system can produce.
I've been shooting indoors today with f/2.0 with a shutter speed of 1/100 albeit pushing the ISO a bit but the results are very good indeed.
Even adjusting the AFMA doesn't come close to the live view focus because the focus is achieved on the sensor and there are no adjustments necessary in live view. It was a real wow moment.
The live view seems to be pretty quick too. Not much messing around hunting for focus.
I love my 50 again!
This also begs the question: Would the Dual Pixel AF system work well with 3rd party lenses?
Has anyone out there used the 70D with a 3rd party lens and found their results have improved?
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Viggo

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #221 on: January 29, 2014, 06:56:15 AM »
I've been thinking about going Sigma because of AF issues with my Canon 50 f/1.4.
I love the shots I get with it but there used to be so many out of focus shots that it was just infuriating. I was teetering on the brink of selling it.
However, since I bought my 70D, I can nail focus most of the time. Why? Dual pixel AF technology. I am almost exclusively using live view AF now with my nifty fifty and I can report that the results are so many times more consistent than even the very good inherited-from-the-7D AF system can produce.
I've been shooting indoors today with f/2.0 with a shutter speed of 1/100 albeit pushing the ISO a bit but the results are very good indeed.
Even adjusting the AFMA doesn't come close to the live view focus because the focus is achieved on the sensor and there are no adjustments necessary in live view. It was a real wow moment.
The live view seems to be pretty quick too. Not much messing around hunting for focus.
I love my 50 again!
This also begs the question: Would the Dual Pixel AF system work well with 3rd party lenses?
Has anyone out there used the 70D with a 3rd party lens and found their results have improved?

I'm more worried about AF with Sigma tbh. If you don't get same sharpness with live view and phase AF , then lens isn't calibrated. Phase can miss, but contrast can also miss. That being said, the canon 1.4 isn't exactly the pinnacle of AF performance... Let's just hope Sigma starts to figure out AF for Canon.
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jdramirez

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #222 on: February 03, 2014, 01:32:26 PM »
I don't know why I'm so excited about this 50mm... I think it is because I was willing to buy the 35 but I knew for my purposes it would be too wide.  But if the sigma approaches the zeiss, and costs about the same as the 50L, then it is just an incredible value. 
Upgrade  path.->means the former was sold for the latter.

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #222 on: February 03, 2014, 01:32:26 PM »

jedy

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #223 on: February 14, 2014, 11:34:11 AM »
To all the people commenting how good the new Sigma 50mm is or that they're selling their existing 50mm to buy it, please remember IT'S NOT OUT YET!!! You have no way to know how good it is. Wait until it's released, try it then decide. If however you're a gear whore...sorry, carry on.
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jdramirez

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #224 on: February 14, 2014, 11:43:48 AM »
To all the people commenting how good the new Sigma 50mm is or that they're selling their existing 50mm to buy it, please remember IT'S NOT OUT YET!!! You have no way to know how good it is. Wait until it's released, try it then decide. If however you're a gear whore...sorry, carry on.

I suppose we are relying on the word of sigma.  Would they stake their reputation on a lie?  This lens is the best option save for the otus. Then it comes out and is worse than the 50mm f1.8... no... their lie would catch up with them.

The best lies are the ones that can't be disproven.

Imagine being at a bar and telling a girl you are well endowed like nothing she has ever seen or felt before.  She goes home with you, but in reality... fifth graders put you to shame. 

The truth will come out...

Upgrade  path.->means the former was sold for the latter.

XS->60D->5d Mkiii:18-55->24-105L:75-300->55-250->70-300->70-200 f4L USM->70-200 f/2.8L USM->70-200 f/2.8L IS Mkii:50 f/1.8->50 f/1.4->100L-> 85mm f/1.8 USM-> 8mm -> 85mm f/1.2L mkii

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Re: Sigma Announces the 50 f/1.4 Art Lens & More
« Reply #224 on: February 14, 2014, 11:43:48 AM »