Colored filters enhance lunar details by improving contrast and reducing glare. Different colored filters highlight various features; yellow and blue filters are particularly useful. Neutral-density ...

(Santa Barbara, Calif.) - For the first time, a team of international researchers has found a way to view the accretion disks surrounding black holes and verify that their true electromagnetic spectra ...

Photo filters aren’t something every photographer needs, but for those who do need them, they’re an absolute necessity. It’s for this reason that Sandmarc, a manufacturer of high-quality photo filters ...

NiSi makes one of my favorite photographic accessories, namely the immaculately engineered NiSi NM-200s Macro Focusing Rail. The company also has various other product lines but is perhaps better ...

The function of CPL polarizing filter: A polarizing filter can eliminate harmful reflected light and improve the clarity and expression of the image. Eliminate reflected light: eliminate light ...

DR. BRUCE BILLINGS, of the Polaroid Research Laboratory (Polaroid Corporation, Cambridge 39, Mass.), has recently given to the American Astronomical Society and the American Association for the ...

Because I have a new toy, you all have to suffer through blog posts about my camera every weekend. Until I get bored of it. Which is not yet. Back in the day, I had a circular polarizing filter for my ...

[Michelle Hampson] reports in IEEE Spectrum that Chinese researchers may improve self-driving cars by mimicking how the human eye works. In some autonomous cars, two cameras use polarizing filters to ...