Filtering is a very important feature in Office Excel 2010, the spreadsheet software from Microsoft, because it enables you to view only rows that contain data that meets specific requirements, ...

If you are wondering how to use the Excel FILTER function with multiple criteria, here’s a tutorial to guide you through the steps and ensure you can efficiently filter and sort your data. The FILTER ...

Ottawa, Canada, April 30, 2012 - Iridian Spectral Technologies Ltd. (Iridian), a leading global supplier of optical filter solutions announces the availability of multi-zone filters on a single ...

At visible wavelengths, the terrestrial night sky is very dark which allows astronomers to see back to within a few billion years of the Big Bang using the most powerful optical telescopes on Earth.

The Tiffen Co. introduces Digital HT filters, a state-of-the-art technological breakthrough in multi-coated photo and video filters. Made for the discerning professional and imaging enthusiast, ...