News alert

Sign-up for our PMA 2018 news headlines and get notified when new digital cameras are being launched at the 2018 PMA Show in Anaheim, California, USA...

RSS

The latest digital imaging news is also available through our PMA 2018 RSS service. Add the RSS feed to your news feeder and you will receive constantly updated articles on all the PMA 2018 news. To use our RSS service you will need an RSS reader, of which there are many available online.

PMA 2018 RSSPMA 2018 News
PMA 2018 Sitemap by CategorySitemap by Category
PMA 2018 Sitemap by BrandSitemap by Brand

Sigma FLD glass

Dennis Hissink
PMA 2018 Report
Monday 22nd, February 2010
Posted by: Dennis Hissink

PMA Show - The Sigma Corporation is pleased to announce that FLD (F Low Dispersion) glass, which has a performance equal to fluorite glass, has been adopted and used in our new high performance lenses. FLD glass is the highest level low dispersion glass available with extremely high light transmission. This optical glass has a performance equal to fluorite glass which has a low refractive index and low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. Using these characteristics gives excellent correction for residual chromatic aberration (secondary spectrum) which cannot be corrected by ordinary optical glass and ensures high definition and high contrast images.

Sigma FLD glass for superior optical performance
Sigma FLD glass offers superior optical performance, equal to fluorite, at an affordable price. The density of Sigma FLD glass is lower than traditional optical glass, ensuring a lighter construction of large aperture lenses. Sigma FLD glass has been incorporated into some of our recently announced lenses; 4 elements have been included in the Sigma 8-16mm F4.5-5.6 DC HSM as well as 2 elements in both the Sigma APO 70-200mm F2.8 EX DG OS HSM and the Sigma 17-50mm F2.8 EX DC OS HSM. Sigma, as a leading manufacturer of lenses, is continually innovative in the use of new materials and lens designs.

Recommended related articles

Next or previous article

The PMA show, or Photo Marketing Association, continues its yearly tradition of maintaining a network of photo imaging as well as the experience and know-how of the industry. The PMA represents 20,000 members from over 100 countries, who are all active within the imaging industry. As a reflection of the changes in the market, the PMA organization has also changed and has become more diverse. Nowadays, the member group consists of representatives coming from photo retail, manufacturers, commercial photo labs, professional sports and news photography, in addition to small album print suppliers and photo processing centers. The PMA 2012 Trade show focuses on an industry which is heavily affected by the unstable situation of the global financial economy. However, whether the latter will also stand in the way of the innovation and product introductions, remains to be revealed by the PMA International Convention & Trade Show in Anaheim Convention Center (California, US).