More Sigma lens' at PMA

[Rooz]

the 10-20 looks quite nice. notice more OS lens' from sigma. in-body IS becoming less and less relevant as sigma and tamron seem to be churning out the stabilised lens' now aswell as the OEM products.

Sigma announces 10-20mm f3.5 EX DC HSM lens (http://www.dpreview.com/news/0903/09030305sigma10mm20mm.asp)
http://a.img-dpreview.com/news/0903/Sigma/sigma10_20mm3_5.gif (http://www.dpreview.com/news/0903/09030305sigma10mm20mm.asp)PMA 2009: Sigma has announced an ultra-wide angle zoom, the 10-20mm F3.5 EX DC HSM. This new design squeezes a relatively fast F3.5 constant maximum aperture into a body about 10% larger in each dimension than the company's popular 10-20mm F4-5.6 EX DC HSM. The lens has a minimum focus distance of 24 cm (9.4 inches) throughout the zoom range, and features two Super-Low Dispersion glass and two Extraordinary-Low Dispersion glass elements for the correction of chromatic aberrations. It is designed for cameras with APS-C/DX sensors, and will be available in mounts for Sigma, Canon, Nikon, Sony and Pentax DSLRs. (01:00 GMT)

Sigma unveils 18-50mm f2.8-4.5 DC OS HSM lens (http://www.dpreview.com/news/0903/09030304sigma18mm50mm.asp)
http://a.img-dpreview.com/news/0903/Sigma/sigma18_50mm.gif (http://www.dpreview.com/news/0903/09030304sigma18mm50mm.asp)PMA 2009: Sigma has unveiled a new large aperture image-stabilized standard zoom, in the shape of the 18-50mm F2.8-4.5 DC OS HSM. This lens features a new Optical Stabilization unit which Sigma claims will work on Sony and Pentax bodies with in-body stabilization systems. It also boasts a larger maximum aperture than the kit zooms typically supplied with most DSLRs, and incorporates Sigma's Hypersonic motor for fast silent autofocus. Designed for DSLRs with APS-C/DX sized image sensors, it will be available in Sigma, Canon, Nikon, Sony and Pentax mounts. (01:00 GMT)

Sigma releases 50-200mm f4-5.6 DC OS HSM lens (http://www.dpreview.com/news/0903/09030303sigma50mm200mm.asp)
http://a.img-dpreview.com/news/0903/Sigma/sigma50mm_200mm.gif (http://www.dpreview.com/news/0903/09030303sigma50mm200mm.asp)PMA 2009: Sigma has released an image-stabilized version of its budget telezoom lens, the 50-200mm F4-5.6 DC OS HSM. This features the same new optical stabilization unit as seen on the 18-50mm F2.8-4.5 EX DC HSM also announced today, which is compatible with Pentax and Sony bodies with in-body anti-shake systems. The new lens also includes a number of user-friendly features rarely seen at this level, including a hypersonic motor for fast, silent autofocus, and an internal-focusing design with a non-rotating front element. It will be available in mounts for Sigma, Canon, Nikon, Sony and Pentax DSLRs, and is designed for cameras with APS-C/DX sized sensors only. (01:00 GMT)

Sigma 24-70mm f2.8 and 18-250mm OS lenses (http://www.dpreview.com/news/0903/09030302sigma18mm250mm24mm70mm.asp)
http://a.img-dpreview.com/news/0901/Sigma/sigma_18_250.gif (http://www.dpreview.com/news/0903/09030302sigma18mm250mm24mm70mm.asp)PMA 2009: Sigma has also announced the availability of the 18-250mm F3.5-6.3 DC OS HSM and 24-70mm F2.8 IF EX DG HSM lenses. Announced during Photokina 2008, both lenses will start shipping now and will be available in Sigma, Canon, Nikon, Pentax and Sony mounts. (01:00 GMT)

[rawpaw18]

Still have yet to add a uwa to my bag, looks like the choices just increased.

[achuang]

Same here, the ultra wide looks good. We'll have to wait and see for some reviews.

[lukeap69]

That 18-50 OS, I wonder why they did not do that f/2.8 all throughout. That could have been a great alternative to the 17-55 f/2.8s.

[Visual Reality]

That 18-50 OS, I wonder why they did not do that f/2.8 all throughout. That could have been a great alternative to the 17-55 f/2.8s.
Sigma already has an 18-50 f/2.8. I don't see the point of this new lens, unless its to compete with the kit offerings of the 18-55 IS / VR.

[Aldor88]

'For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an anti-shake function. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement.'

Does this mean that both the body and lens stabilisation will work together at the same time? or do you for example have to turn the lens' OS off and then they will work?

[GaryS]

Sigma 10-20 f3.5... 82mm front filter!

I'm wondering about the pricing of the 18-50 OS... Sounds like it will be a kit level lens. It would have been nice to see an OS HSM version of the 18-50 f2.8.