6m / 2 feet from the front of the glass. The 40mm lens has a ... the brand explained. Anamorphic lenses are also known for horizontal lens flare, and Sirui says the upcoming 40mm is no exception.

a lot of us don’t have that luxury and instead must rely on magnifying glasses and loupes. [Mauro]’s project for the Hackaday Prize makes wearing these loupes and lenses even easier by adding ...

Prescription eyeglasses can cost as much as $1,000, and most have plastic lenses, which scratch more easily than glass. Clearly, you need to protect your investment. But should you clean lenses ...