Since the 1800s, photo filters have been used to apply different effects to photographs. Nowadays, many of these filters are no longer relevant, due to the increasing capabilities of editing programs ...

Back in the days of analog photography, filters were a photographer’s best friend. Today, with digital photography, many of the effects filters had on film can be replicated during post-processing, ...

Who doesn’t know the problem of glare when trying to ogle a PCB underneath a microscope of some description? Even with a ring light, you find yourself struggling to make out fine detail such as ...

Here are some possible sources of polarizing film: Polarization.com has a special offer for Scientific American readers: An 8.5 x 6 inch piece of polarizing film for $7, US shipping included. Offer ...