Friday, August 27, 2010

Sigma releases 70-200mm F2.8 OS for Nikon (27/08/2010)

Sigma has announced its 70-200mm F2.8 EX DG OS HSM image-stabilised fast telezoom is now available in Nikon F mount. Previously available in Canon EF mount, the Nikon version is priced at $2,470. The lens features a new optical design that uses two elements made of the company's recently developed 'FLD' glass plus three SLD glass elements to reduce aberrations, a 9-blade circular aperture, and features full-time manual focus override. It also comes with an adapter for APS-C users.

 

SIGMA APO 70-200mm F2.8 EX DG OS HSM

SIGMA APO 70-200mm F2.8 EX DG OS HSM specifications
Focal length 70-200mm
Maximum aperture f/2.8
Minimum aperture f/22
Lens construction • 17 groups 22 elements
• 3 SLD glass elements
• 2 FLD glass elements
Angle of view 34.3°-12.3°
Closest focus distance 140cm / 55.1in
Maximum reproduction ratio 1:8
Aperture blades 9 (rounded)
Filter attachment size 77 mm
AF motor HSM motor
Dimensions 86.4mm x 197.6mm (3.4in x 7.8in)
Weight TBC
Supplied accessories • Case
• Petal-type Hood (LH850-02)
• Hood Adapter
• Tripod socket TS-21
Optional accessories • Sigma DG UV 77mm
• Sigma DG Circular Polarizer 77mm
• APO Teleconverter 1.4x EX DG
• APO Teleconverter 2x EX DG
Mounts Sigma, Sony, Nikon, Pentax, Canon

 

Silicon Power Releases SDHC Class10 32GB Memory Card (26/08/2010)

August 25, 2010, Taipei, Taiwan - Silicon Power announces their 32GB Class10 SDHC card. It is the largest capacity according to SD3.0 specifications set by the SD Association. The card is rated Class10 featuring minimum read / write speeds of 10MB/sec which brings absolutely the best out of your digital handheld devices! Whether you are a photography enthusiast using a HD camcorder to capture your everyday amazing life or a professional photographer constantly shooting with continuous burst mode, Silicon Power’s 32GB Class10 SDHC card ensures you a smooth recording experience!

With the prevalence of high definition DV and camera, high speed / capacity flash memory cards are no longer the sole domain of professionals. The miniaturization of digital devices implies that CF cards must give way to smaller storage options. Silicon Power’s 32GB Class10 SDHC card features 10MB/sec transfer speed (1.6x the speed of Class6 SDHC cards) with the size of a post stamp. The 32GB capacity can store more than 10 thousands photos and records over 12hrs of video with 6Mbps (1440*1080) resolution. Users need not to worry about insufficient storage space or slow transfer speed. Silicon Power 32GB Class10 SDHC card can let you get the most out of your HD cameras and camcorders and fully enjoy your photography or video recording experiences.

Silicon Power’s Class10 SDHC card is in compliance with SD3.0 specifications set by the SD Association. It features superb compatibility with cameras, card readers and many other SD-compliant devices available in the market. All Silicon Power flash memory cards come with lifetime warranty. Silicon Power’s 32GB Class10 SDHC card is available in 4GB/8GB/16GB/32GB capacities for photographers and enthusiasts alike to choose from and take advantage of your HD digital handheld devices.

Attention : - Dangerous Virus Attacks Instant Messaging Clients (26/08/2010)

August 26, 2010, Singapore - A highly infectious new family of computer worms that target popular instant messaging clients in order to take control of a computer without the user’s knowledge has been discovered.
According to Kaspersky Lab, a leading developer of secure content management solutions, it is only a matter of time before Internet users in Asia are attacked.
Mexico, Brazil, Peru and the USA have seen the greatest numbers of infections, with what is being dubbed the ‘IM-Worm’ also spreading across Africa, India and Europe (particularly Spain).

What makes these worms highly unusual is that they are multilingual and capable of infecting users via several IM clients simultaneously, including Yahoo! Messenger, Skype, Paltalk Messenger, ICQ, Windows Live Messenger, Google Talk and the XFire client for gamers.

Four variants of this worm have so far been detected by experts at Kaspersky Lab, who have named the family IM-Worm.Win32.Zeroll.

Once it penetrates a computer, it looks in the contact list of any IM client present and sends itself to all the addresses it finds. Infection occurs when a user follows what they think is a hyperlink to an interesting picture, that in fact leads to a malicious file. The link appears in an instant message sent by an infected machine.

The fact that it is multilingual also makes the new family of IM worms stand out. IM-Worm.Win32.Zeroll uses 13 different languages, including English, German, Spanish and Portuguese, sending users in various countries messages in a language that they will understand.
At the present time, Mexico, Brazil, Peru and the USA have seen the greatest number of infections, but many instances have also been recorded in Africa, India and European countries, particularly Spain.

IM-Worm.Win32.Zeroll has backdoor functionality, which means it can gain control of a computer without the user’s knowledge. Once it has penetrated a system, the worm contacts a remote command and control center.

After receiving its instructions from the center via IRC, IM-Worm.Win32.Zeroll starts downloading other malicious programs. Interestingly, this new breed of IM worm connects to different IRC channels depending on the country and the infected application. This means a hacker controlling a network of infected computers can classify them according to country and IM client and send out different commands, which is useful, for example, when distributing targeted spam.

“It appears that the worm’s creators are currently in the early stages of their criminal activities,” said Mr Jimmy Fong, Channel Sales Director of Kaspersky Lab, Southeast Asia.

“They are infecting as many machines as they can in order to get good offers from other crooks for such things as pay per install, spam and so on,” Mr Fong said.

All Kaspersky Lab products successfully detect and neutralize the new family of IM worms.