A camera lens filter is pretty much what you’d expect: it’s a physical piece of glass that attaches to your camera’s lens, filters the light before it reaches the sensor and, typically, has an effect ...

In antiquity, we see examples of magnifying crystals formed into a biconvex shape as early as the 7th century BC. Whether the people of that period used them either for fire-starting purposes or ...

If you've got a brand-new Mirrorless camera and a collection of DSLR lenses, you may not be out of luck and can still use ...

Researchers have shown that consumer-grade 3D printers and low-cost materials can be used to produce multi-element optical ...