synth19

Just yesterday all these were announced, most with optical stabalization (OS).

(Bolded text are links).

17-50mm f/2.8 OS
PMA 2010: Third on Sigma's long list of introductions is an image-stabilized fast standard zoom for APS-C SLRs. The 17-50mm EX DC OS HSM offers a slightly wider angle of view than the company's previous models in this class, and alongside optical stabilization also adds a hypersonic autofocus motor for users of all mounts (Canon, Nikon, Pentax, Sigma and Sony). It uses two elements made from Sigma's new 'FLD glass', plus two glass mold and one hybrid aspherical elements, to reduce aberrations. The minimum focus distance is 28cm across the entire zoom range, giving a maximum magnification of 0.2x, and the 77mm filter thread does not rotate on focusing.
(23:00 GMT)


70-200mm f/2.8 OS
PMA 2010: Sigma has launched into PMA with a veritable salvo of interesting new products. First up is the APO 70-200mm F2.8 EX DG OS HSM, an image-stabilised fast telezoom with ultrasonic-type silent focusing that provides a direct alternative to recent arrivals from Canon and Nikon. The all-new optical design uses two elements made of Sigma's newly-developed 'FLD' glass (plus three of SLD glass) to reduce aberrations, a 9-blade circular aperture for attractive bokeh, and features full-time manual focus override. The Optical Stabilisation system promises up to four stops benefit when hand-holding, and like other recent Sigma lenses, can be used by owners of Sony and Pentax cameras (the lens will also be available in Canon, Nikon and Sigma mounts). Last but not least, a dedicated adapter that extends the length of the hood for APS-C users is supplied as standard. (23:00 GMT)

85mm f/1.4
PMA 2010: Sigma has announced the 85mm F1.4 EX DG HSM, a large-aperture short telephoto lens which is bound to pique the interest of budding portraitists. Featuring a hypersonic focus motor with full-time manual focus override, the lens uses a 9-blade diaphragm for attractive background blur, and has a minimum focus distance of 85cm. It comes with a lens hood adapter for ASP-C/DX users that extends the length of the hood to give more effective shading, and will be available in mounts for Canon, Nikon, Pentax, Sigma and Sony SLRs. (23:00 GMT)



50-500mm f/4.5-6.3 OS
PMA 2010: Last but not least of the lenses, we come to Sigma's upgrade for its popular 50-500mm ultra-telephoto zoom which now incorporates Optical Stabilisation - a hugely welcome addition to such a long lens. Again Sigma claims the OS offers up to four stops benefit, and works with Sony and Pentax SLRs as well as Canon, Sigma and Nikon models, with the stabilized viewfinder image aiding in focusing and composition. The all-new optical design uses 22 elements in 16 groups, including four SLD glass elements, but the filter size has grown to a whopping 95mm. (23:00 GMT)


8-16mm F4.5-5.6
PMA 2010: Continuing our way through Sigma's bag of goodies, we come to the widest-angle rectilinear lens yet made for APS-C DSLRs, in the shape of the 8-16mm F4.5-5.6 DC HSM. Essentially an equivalent of the company's 12-24mm lens for full-frame, this features a disorientatingly-wide angle of view of 121 degrees for exaggerated perspectives. It has a built-in petal shaped hood, HSM focusing with full-time manual override, and a minimum focus of 24cm. Again, it will be available to fit Canon, Nikon, Pentax, Sigma and Sony SLRs. (23:00 GMT)

SD15 digital SLR
PMA 2010: More than a year after first showcasing it at the 2008 Photokina trade show, Sigma has re-announced the SD15 digital SLR. Successor to the SD14, it incorporates a 14MP Foveon X3 sensor, the same True II processor as the latest DPx models, and a larger 3.0" 460k dot LCD. Other features include SD card compatibility, ISO 100-1600 (50-3200 extended) sensitivity, 21 shot raw buffer at 3fps and 5 frame auto bracketing for HDR-enthusiasts. (23:00 GMT)

They also announced a few P&S as welll... check out DP Review for more info.

EuRTSX

Hmm... the 85 f/1.4 seems tempting.

jupitersolo

Seems tempting, but it's hard to trust their equipment. I read people trying three and four copies of the new 50mm and 30mm before they found one that would focus correctly.

Dan Martin

I never could understand why people try multiple copies of a lens to find one that focuses properly. The lenses have no AF logic in them at all, they just have a motor. The focusing is 100% done by their camera body, so they probably weren't consistent in their testing or their bodies aren't working properly.

Sigma has had some issues with "decentered" lenses though, and that's definitely something that can change from sample to sample. If all the elements aren't properly aligned during assembly, you can get one edge that's softer than another.

Their 50mm 1.4 is a beautiful lens, but it suffers the same focus shifting issues that the EF 50mm 1.2 has when stopping down. It seems that the Zeiss 50mm 1.4 has the same problem too, so it must be a compromise when designing a fast 50mm or something.

I'm most interested in their third revision of the 70-200 though. I'll be watching the tests closely when it comes out because the $2499 that Canon wants for the new 70-200 f/2.8II is a little steep for my needs.

jupitersolo

I've seen some great images with the Sigma 50 and 30. But they have lessor QC than the big two.

Zipho

ya the "general" concensus on sigma is that if you get a good one, their great lenses. however alot of people do coplain about the qc, I'm not sure how many are accurate complaints against the lens itself or operator misunderstanding. I know my 150 2.8 apo is incredible, and I wouldn't trade for anything in the same range.