News tagged with "sigma"
CP+ 2011: In a group of releases, Sigma has unveiled an optically stabilized version of its 50-150mm F2.8 fast telephoto zoom for APS-C DSLRS. The 50-150mm f/2.8 EX DG APO OS HSM gives a field-of-view range equivalent to around 75-225mm on a 35mm system, but in a design that is smaller and lighter than full frame 70-200mm F2.8 designs. The latest, 'OS' version is claimed to offer the ability to get stable shots at shutter speeds four stops slower than without it. It features a completely revised optical design with 21 elements in 15 groups.
CP+ 2011: Sigma has announced the DP2x digital compact camera, a revised version of its DP2 large-sensor compact camera that captures three-color information at 4.7M positions (14M total data points). It features new AF algorithm for faster auto focus, first seen in the DP1x. Other features remain the same including a 2.5" LCD, True II processing engine, and P/A/S/M shooting modes.
CP+ 2011:Sigma has introduced the 12-24mm F4.5-5.6 EX DG HSM II, an updated version of its ultra-wideangle zoom for full frame SLRs. It uses a revised optical formula which now incorporates now fewer than four elements made from its latest 'F' low dispersion glass, plus one SLD element, to minimise chromatic aberration. Four aspheric elements (three glass mold and one hybrid) are also employed to reduce distortion and other aberrations. The lens features an integrated hood and splash-proof design.
CP+ 2011: Sigma has announced an entirely redesigned version of its 105mm F2.8 macro lens that incorporates optical image stabilization. The 105mm F2.8 EX DG OS HSM offers true 1:1 macro reproduction, and uses a floating focus system to maintain high optical performance at all distances. It also features a splash-proof barrel design and Sigma's Hypersonic Motor for fast, silent autofocus coupled with full-time manual focus capability. The lens is designed for use on both full frame and APS-C SLRs.
Sigma has announced a price drop for its 70-200mm F2.8 EX DG OS HSM lens to $1,399, down from $1,699 in the US market. The company says 'the reason the price went down is to remain competitive in this category and incent sales for this very popular lens.' The lens was amongst the first to incorporate Sigma's FLD glass element. It is currently available for Canon, Nikon, Pentax, Sony Alpha and Sigma DSLRs.
Sigma has released a function enhancing firmware update for its SD15 digital SLR. Firmware v1.01 adds a second Quick Set (Qs2) option for additional access to commonly used functions. It also adds a Key Sound cancellation function and improves the display quality of the LCD. The firmware is available for immediate download from the company's website.
Sigma has announced its 85mm F1.4 EX DG HSM lens is now available at a retail price of $1,400. Announced at PMA 2010, the large-aperture short telephoto lens features a hypersonic focus motor with full-time manual focus override. It includes a hood extender for APS-C/DX users and is available in Canon, Nikon, Pentax, Sigma and Sony DSLR mounts.
Photokina 2010: Sigma has announced the SD1 digital SLR, which uses a brand new 46Mp 1.5x crop Foveon X3 sensor (4800 x 3200 x 3 layers). Designed as the company's flagship camera, the SD1 has a weatherproof magnesium alloy body, 3" 460k dot LCD, and new 11-point twin-cross AF system. Image processing is in the hands of a 'Dual True II' engine that promises improved speed and image quality, and the camera is compatible with the full range of Sigma lenses.
Photokina 2010: Sigma has introduced the APO Macro 150mm F2.8 EX DG OS HSM lens with optical image stabilization. It inherits many of the features of its predecessor, the 150mm F2.8 EX DG HSM, including Sigma's Hypersonic Motor for fast and silent autofocus, and a 1:1 maximum magnification ratio. Three SLD elements are used in its 19 element / 13 group design to minimize aberrations, and a 9-blade circular diaphragm promises attractive rendition of out-of-focus regions of the image.
Photokina 2010: Sigma has unveiled the 120-300mm f/2.8 EX DG OS HSM, a revised version of its fast telezoom featuring optical image stabilization and weather-resistant construction. The lens also offers ultrasonic-type HSM autofocus with full-time manual override, and employs both 'F' Low Dispersion and Super Low Dispersion glass to minimize chromatic aberrations. It employs a 9-bladed rounded diaphragm for attractive bokeh, and is fully compatible with Sigma's 1.4x and 2.0x teleconverters while maintaining autofocus.
Photokina 2010: Sigma has announced two flashes, the first of which is the EF-610 DG Super. This adds advanced features such wireless TTL and modelling flash to the basic spec of the EF-610 DG, i.e. a maximum guide number of 61m (ISO 100, 105mm setting) and a bounce and swivel head. It's designed to work with the latest TTL autoexposure systems of all popular digital SLR systems, but also includes a manual flash mode with output adjustable by up to eight stops.
Photokina 2010: Sigma's second flash of the day is the EF-610 DG ST. Designed to work with the latest TTL autoexposure systems of all popular digital SLR systems, it has a maximum guide number of 61m (ISO 100, 105mm setting) and a bounce and swivel head. There's also basic manual control available, with a choice between full and 1/16th power output.
Sigma Japan has announced its DP1x compact camera, announced in February, will be available from the end of this month. It features a faster True II processor and enhanced AF algorithms than the company's DP1 compact. There is currently no information regarding its availability in other markets. Sigma has also announced that that its 17-50mm F2.8 EX DC OS HSM lens, that was previously available in Canon, Nikon and Sony mounts is now available for Pentax and Sigma mounts at retail prices of $980/£649.99.
Just posted! Our lens review featuring the first image-stabilized fast telezoom to appear from an independent lens maker: the Sigma 70-200mm 2.8 EX DG OS HSM. With an all-new optical design and Sigma's silent ultrasonic-type HSM focusing, it offers an interesting alternative to Canon and Nikon's latest designs at an attractive price, while providing Sony and Pentax users with the option of using in-lens stabilization.This is all pretty compelling on paper, so how well does it work in practice?
Sigma is advising Sony users that its lenses are not compatible with the latest Alpha SLT-A55 and SLT-A33 'translucent mirror' cameras and it will fix them for free where possible. Specifically, the aperture may not operate correctly, giving an error message on the camera. The company says it will be offering to modify existing lenses free of charge, however this may not be possible for some lenses 'discontinued several years ago'. It advises owners affected to contact their nearest Sigma Service Station.
Sigma Corporation of America has announced that the Sigma 17-50 F2.8 EX DC OS HSM is now available. The lens, originally announced at the PMA exhibition in February 2010, offers a faster, image stabilized alternative for APS-C users wanting to upgrade from their kit lens. It is now available in Canon mount with Pentax, Sony, Nikon and Sigma-mount versions expected 'in the coming weeks.' The lens will sell with a recommended price of $980/£649.99.
Sigma has released an updated version of its Photo Pro image-editing software for immediate dowload. Version 4.1 extends RAW support to the SD15 digital SLR and adds compatibilty with 64-bit Windows OS. The latest versions available for download - 184.108.40.206 (3591) for Windows and 4.1 (1044) for Mac - also add bug fixes compared to previous versions shipped with the SD15 DSLR.
Sigma has issued a notice warning customers of a 'potential autofocus defect' in some of its recently released telephoto lenses. The problem affects a some examples of the APO 50-500mm F4.5-6.3 DG OS HSM, APO 120-400mm F4.5-5.6 DG OS HSM and APO 150-500mm F5-6.3 DG OS HSM lenses. The company has listed the serial numbers of lenses that could be affected - owners experiencing problems with any of these lenses are being offered a free collection, inspection and service.