Sigma announce 14mm f/1.8, 135mm f/1.8, 24-70mm f/2.8 ART

Energize

Energize

Energize

Caporegime
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Thought I'd mention this as no one seems to have posted a thread on it (unless my search skills are lacking).

The 14mm will be fantastic for astro photographers and they are claiming 50MP resolution on the 135mm. No doubt these will be another three market leading lenses from Sigma that will steal away market share from Nikon and Canon and kick their arses into gear. :D

NEW SIGMA 14MM F1.8 DG HSM | ART LENS
The SIGMA Corporation is proud to announce the SIGMA 14mm F1.8 DG HSM | Art lens, the world’s first and only* F1.8 ultra-wide-angle lens

A true high-speed lens that delivers a new dimension of visual experience

In taking photographs of starry skies or other celestial scenes at night, or of the seashore with a wide perspective, a large-diameter lens is a strong ally, since it allows the capture of a moving subject by adjusting shutter speed without relying on ISO sensitivity. With its full-frame 35mm coverage, 14mm focal length for an ultra-wide angle of view, F2 barrier-breaking F1.8, the SIGMA 14mm F1.8 DG HSM | Art is the true high-speed ultra-wide-angle lens for which so many photographers have been waiting. Although some zoom lenses are available that can cover 14mm, the large diameter delivering F1.8 brightness is a singular advantage. Going beyond fast shutter speed, this lens can capture a swarm of fireflies with crystal clarity, a beautiful bokeh effect, and outstanding control of light streaking.
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http://www.sigma-imaging-uk.com/index.php?route=information/news&news_id=243

NEW SIGMA 135MM F1.8 DG HSM | ART LENS
The SIGMA Corporation is proud to announce the new the SIGMA 135mm F1.8 DG HSM | Art lens, the ultimate 135mm telephoto featuring top-level performance,

With F1.8 brightness, this telephoto lens for full-frame cameras further strengthens the Art line’s prime options

135mm telephoto lenses are often categorized as the foundational telephoto, the first one to add to a lens collection. This focal length delivers a strong perspective compression effect, while the large diameter with F1.8 brightness provides a dramatic bokeh effect. By minimizing axial chromatic aberration, the SIGMA 135mm F1.8 DG HSM | Art makes this bokeh effect not only impressive but also beautiful while delivering superb contrast and sharp image quality in every shot. It offers the outstanding resolution required for 50MP or higher ultra-high-megapixel DSLRs. By incorporating its latest innovations in design and optical glass and rethinking every aspect of the lens, SIGMA has ensured outstanding image quality all the way to the edges, establishing the new standard in 135mm telephoto lenses.

With resolution so crystal-clear that individual hairs can be discerned in a portrait, this large-diameter lens also delivers a beautiful bokeh effect, giving photographers everything they need. It is ideal for close-ups and full-body shots, with subjects standing out against a pleasantly blurred background. In addition to standard portraits, including bridal shots, this lens is a top performer for live events, with its super-fast autofocus capturing subjects with ease.
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http://www.sigma-imaging-uk.com/index.php?route=information/news&news_id=244

NEW SIGMA 24-70MM F2.8 DG OS HSM | ART LENS
The SIGMA Corporation is proud to announce the new SIGMA 24-70mm F2.8 DG OS HSM | Art lens, top-level performance optimized for the era of ultra-high-megapixel cameras.

The definitive large-diameter standard zoom lens for any shoot

What photographers demand from the 24-70mm F2.8 specification is much more than outstanding image quality. They want all the features that make this a go-to lens for a wide range of photographic opportunities, including optical design ideal for the latest ultra-high-megapixel digital cameras, hypersonic motor (HSM) for high-speed autofocus, optical stabilizer (OS) with powerful stabilization effect, dust- and splash-proof mount with rubber sealing, and a metal barrel for a stable, rigid feel. This all-new 24-70mm F2.8 lens from SIGMA delivers the performance and functionality that help pros succeed in news, nature, and many other fields of photography.
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http://www.sigma-imaging-uk.com/index.php?route=information/news&news_id=245
 
Only if their quality control is better!

I've seen enough number of Sigma 20mm and 24mm f/1.4 lenses being decentred, leaving one corner of a Milky Way photo out of focus.
 
Shame the 135mm doesn't have any OS but I suppose with an f1.8 aperture you can compensate with shutter speed somewhat and I presume the cost of implementing would be too high otherwise it would be in.
 
Columbo said:
Shame the 135mm doesn't have any OS but I suppose with an f1.8 aperture you can compensate with shutter speed somewhat and I presume the cost of implementing would be too high otherwise it would be in.
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OS is pretty cheap compared to the rest of the camera. its usually to do with either complexity of the lens design or ensuring very high quality rendering and Bokeh for fast primes. Its rare for very fast rimes to have any kind of OS/IS.
 
What I don't understand is why more body manufacturers haven't put on sensor stabilisation into their cameras, that way all their lenses get stabilised without adding the bulk of IS optics to their lenses.
 
Energize said:
What I don't understand is why more body manufacturers haven't put on sensor stabilisation into their cameras, that way all their lenses get stabilised without adding the bulk of IS optics to their lenses.
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In lens stabilization is better because it can be tuned to each specific lens, this is especially true for longer lenses where the IS can be much more effective. With a longer lens the greater the movement across the sensor but a sensor based system can only make small adjustments, while a system in the lens close to the nodal point can easily compensate. For DSLRs there are other reasons, a sensor based system wont stabilize the viewfinder for example so composition is harder.Similarly, the the exposure metering sensors and auto-focus sensors don't get established images. With a EVF mirror-less system then those aren't concerns.



Of course it would be nice to get the best of both worlds. Sensor based for old lenses and fast primes, lens based for longer lens and pro f/2.8 zooms etc.
 
In lens stabilization results in increased cost, larger lenses and worse optics though, look at the cost and image quality difference in the old and new new Nikon 24-70 f/2.8! Manufactures need to think long and hard about adding IS systems to lenses, adding IS to sports lenses as some manufactures have done makes no sense.

Sensor based stabilization on the other hand has no downsides, is superior when there is lateral camera movement, and offers additional benefits such as auto horizon leveling that obviously lens based solutions can't offer.

Sony, Olympus, Panasonic and Pentax all have sensor stabilization, it's about time Nikon and Canon got into 2017.

There's no reason not to have the best of both worlds.
 
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The cost in the new 24-70 has almost nothing to do with the cost of IS. Size is also minimal. The Nikon 55-200mm DX non-VR lens is currently £189, the VR version which is £197. total production cost to add VR is less than even the £8 difference. Adding IS to a lens doesn't affect IQ when turned off, when IS is enabled both sensor based and lens based solution interfere with the image. hard to say which is beter fbut I much prefer the rendeitng of my &0-200mm f/2.8 Vr than my Olympus equivalent using sensor based Is. Not the same lens bt I can more easily detect issues form my Epm-2 than nikkor Vr lenses. Other sensor based system may be different.

Sensor based stabilization has plenty of downsides, my previous sot just listed several advantages to lens based solutions. Sensor based IS can increase heat on the sensor, is not as effect at longer focal lengths, makes it more dangerous to clean the sensor, cannot be optimized for individual lenses.


It would be nice for Nikon and Canon to offer both but I really don't care much as I with it off 99% of the time.
 
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