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News Sigma 50/1.2 DG DN Art

I did wonder what the 'mystery lens' was
 
It looks great - Sigma knocking it out of the park again. Not on my shopping list because I have too many 50's, and I'm still hoping for a new 135 - soon please Sigma :) .
 
It really seems to be incredible good. Compared to other F1.2 50mm lenses a bargain.

I am tempted althought it is heavier, bigger and more expensive than I like. I am glad that it is bigger and heavier. That makes it more easy for me to say no.
 
dirk said:
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I am tempted althought it is heavier, bigger and more expensive than I like. I am glad that it is bigger and heavier. That makes it more easy for me to say no.
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Still it's smaller and lighter than the LUMIX s pro F1.4 and it's not much heavier than the Sigma f1.4 DG DN.

I haven't had time to watch reviews. But I think I put it on my wishlist, if it's what I'm expecting. However the price of 1499 € in Germany is a little bit more than I'm willing to pay.
 
Wow, it looks like they really hit a homerun with this one! I'd love to try it out, but for the cost - I couldn't justify it as a hobbyist when the same money could get you a few i-series lenses used or possibly even the 50 1.4 and 85 1.4 art used. Excited to see what sigma is able to do with the DG DN 105 1.4 and 135 1.8
 
As always I want to see astrophotography wide open, over-blown out backgrounds never interest me. 13 aperture blades is cool and would be better used with an f1.4.

Impressive how relatively light they made it.
 
If you don't like irritating wannabe Chris Nichols Z04 Kommmalherfreundchen or others check Christopher Frost reviews out.

He shows the f1.2 has fantastic sunstars (now I want one) and little coma. He shows chart performance too and completely impartial, what you see is what you get

 
Assuming Panasonic comes out with a 60MP camera, this lens will likely go on my want list. It has the resolution to easily handle 60MP, and 60MP cameras want more light than 24MP cameras because they don't have the same ISO performance. It is win-win for a high MP camera. But I would have to convince myself I'd shoot 50mm that much. In the old old film days I shot lots of 50mm, but anymore it is much less. 50mm is not a very compelling focal length for video, and for photography I usually like something wider. But for photography it could be nice to have just a good 50mm and do zooming with my feet.
 
CharlesH said:
Assuming Panasonic comes out with a 60MP camera, this lens will likely go on my want list. It has the resolution to easily handle 60MP, and 60MP cameras want more light than 24MP cameras because they don't have the same ISO performance. It is win-win for a high MP camera. But I would have to convince myself I'd shoot 50mm that much. In the old old film days I shot lots of 50mm, but anymore it is much less. 50mm is not a very compelling focal length for video, and for photography I usually like something wider. But for photography it could be nice to have just a good 50mm and do zooming with my feet.
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A combination of 60MP, 50mm f1.2 @f1.2 and a pixel peeping condition could drive certain people insane. Left eye pupil in focus, the other slightly out :oops:

Regarding light gathering it is 'only' 1/2 stop faster than f1.4, and considering narrower DOF critical focus is more difficult and taxing on the AF system, for example, if using tracking on moving subjects. The typical use of using f1.2 means only a small amount of that 60MP you could argue is justified and the rest is 60MP of bokeh, unless you have flat field or very far away subjects. Few landscapers would use f1.2, you might do with astro landscapes.

For me I am most impressed with the sunstars, the bokeh is obviously nice but not a giant leap over f1.4, I even love the bokeh from my 24-105 f4 and 70-300 f4.5-f5.6, the Lumix S 50mm f1.8 has beautiful bokeh and more than excellent for me (I'm trying to not buy this yet).

But again the sunstars I love, maybe best ones I've seen since the tiny Pentax DA15 f4 Ltd APSC lens. I'd buy it for the sunstars at f11 for landscapes and the f1.2 is probably good enough for astro/astro landscapes.
 
Oíche said:
As always I want to see astrophotography wide open, over-blown out backgrounds never interest me. 13 aperture blades is cool and would be better used with an f1.4.

Impressive how relatively light they made it.
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Now, that I've got time and already have watched some reviews, I'm pretty sure that lens will stay on my list. If you are thinking about night photography, you may be more interested in the actual light gathering ability. Therefore T-stops. And I came across a German reviewer who actually has measured T-stops of the lens. Not perfectly scientific, but he has done what he could do. For the Sigma 50mm f1.4 DG DN he as measured T1.5, the same dxo has measured. For the 50mm f1.2 he has measured T1.3. So the light gathering is as better as it should be.

Here the video:
 
Quentinquirelino said:
If you are thinking about night photography, you may be more interested in the actual light gathering ability.
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Thanks, I already knew about this and there is loads of data on T-stops (Samyang and others name their cinema lenses or provide the data), probably more important for astro is "clear aperture" which is focal length/aperture however let's leave that for specialist astroforums and I've yet to meet any L-mount astro people yet. There were quite a number on my previous Pentax system, one reason being you could rotate the sensor with the Earth's rotation to get long exposures to prevent star trails.

Overall it's fantastic the increasing amount of L-mount lenses available.
 
Looks the biz!! But if I were going to buy an uber fast prime, it would be their 35mm f1.2.
 
It seems to be a very impressive lens! Great to have more options for people who love fast prime lenses (like myself) !
 
Here is another Review from Manny Ortiz with comparisons to other F1.2 lenses



I think that Sigma will launch also a 85/1.2 DG DN Art lens. It just would make sense to offer a trinity of F1.2 lenses: 35, 50 and 85mm.

I still hope for a small Sigma 28/2.0 or 1.4 DG DN lens Z04 Menno
 
I've built a little enthusiasm for this lens; not enough yet to do anything like a pre-order. But if did get it, would it be Panasonic or Sony? Ironically Sony just did a major firmware update for the A1 that finally brings focus breathing compensation to this camera. And at the same time Sigma introduced this great lens that doesn't have a focus breathing issue. And we've yet to see what Panasonic has in store for next generation cameras.
 
Hi Charles,

I think you have ro decide first for which lens mount you want to buy an F1.2 lens.

In which of your two camera systems would you use an 50/1.2 lens the most? Is in that use case an F1.2 lens really necessary or would an F1.4 or even an F2.0 lens be already enough? Is 50mm the best focal length for that use case?
 
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