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PostPosted: Wed Jan 08, 2014 6:52 pm 
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"Normal" lenses for full-frame bodies seem to be quite en vogue: After Nikon's AF-S 58/1.4G and Zeiss' Otus 55/1.4 it's now Sigma's turn to announce their newly designed 50/1.4 lens.

Image

Here are the data:
Lens Construction: 13 elements in 8 groups
Minimum focusing distance: 40cm / 15.7in.; maximum magnification ratio: 1:5.6
Dimensions (Diameter x Length): ø85.4mm x 99.9mm / 3.4in. x 3.9in. | Weight: tbd
Filter size: ø77mm
No price or availability are given and the unknown weight points in the direction that development of this lens is not yet finished.
But interestingly the overall design follows in the direction that Zeiss went with it's latest Otus design: it uses a wide-angle design instead of the standard double-Gaussian to achieve better image quality.
Here's the press release. Und dort auf Deutsch.

And here's some comment from popo, who expresses the hope that this'll be the "Otus for the masses" - with the advantage of AF, I might add.

My review of the "old" Sigma 50/1.4 is here of the Zeiss Otus there.

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PostPosted: Wed Jan 08, 2014 7:48 pm 
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They changed the weight to TBD. It was listed as 470g which puts it lighter than the old one if that remains the case. Given the size and element increase I was wondering how they did that, unless the old one used lead. Maybe that was a typo, or copy and paste error?

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
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PostPosted: Wed Jan 08, 2014 9:08 pm 
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Well, I think the lens will not reach the massive weight of the Otus (>900g), but I would indeed assume that the new lens will be heavier than the old on (at 505g).

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PostPosted: Thu Jan 16, 2014 8:36 am 
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My suspicions may not be too far off after all... Imaging Resource said they spoke to Sigma, and the 50 "Art" is apparently being targeted at Otus level. Of course, we're still missing samples, price and availability...

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Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
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PostPosted: Sat Feb 01, 2014 3:30 pm 
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"we're still missing samples, price and availability..."
and not to mention weight.
Still looks like a lens that is still in the design phase or at least final spec phase. Maybe they were so shocked from the optical qualities of the Zeiss Otus that they reconsidered using some more expensive glass in their design.

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PostPosted: Sat Mar 01, 2014 2:27 pm 
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http://www.canonrumors.com/2014/02/sigm ... irst-time/

Claimed crops from the Sigma lens above. Take it for what you will.

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Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
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PostPosted: Sun Mar 02, 2014 9:10 pm 
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Thanks for the heads-up, popo!
Interestingly no Canon lens in the comparison, but it was published at canonrumors!?
I'll be certainly testing this new Sigma and hope that they deliver the version with Nikon-mount not too late after the Canon-mount.

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PostPosted: Sun Mar 02, 2014 9:37 pm 
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The original source they got it from doesn't seem accessible to me, but they're limited to whatever was tested there. I think they still posted as it is one of the more interesting lenses known to be in development. If it delivers on the "Otus for a lot less, with AF" then I can see it shifting a lot of units.

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Sat Apr 05, 2014 4:40 pm 
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http://slrgear.com/reviews/showproduct. ... 677/cat/30

Just seen a review at SLR Gear via Photo Rumors. The scope of their test is technical if limited, as I'm more interested in longitudinal CA, astigmatism and coma. Still, what they have doesn't seem bad. Weight is listed as 810g.

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Wed Apr 09, 2014 8:03 pm 
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Now SLRgear has also published the Zeiss Otus 55/1.4 test for comparison.
Here's the key image from both tests:

Image

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PostPosted: Fri Apr 11, 2014 11:24 am 
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B&H have it on pre-order for $949! I haven't checked out more local pricing yet, but that is very affordable. Unless you need f/1.2 or have size issues, this could be the higher end 50mm choice for the near future.

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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PostPosted: Fri Apr 11, 2014 6:06 pm 
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Certainly for Canon only at the moment, popo?!

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PostPosted: Fri Apr 11, 2014 7:30 pm 
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From Sigma UK's website:

"Sigma’s 50mm F1.4 DG HSM | A – Canon and Sigma fit will be available in May 2014, Nikon fit in June at the suggested retail price of £849.99 including VAT. Availability of Sony and Pentax fit still to be determined."

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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