When it's small the depth of field is shallow or narrow. Focus distance The focus or focusing distance is the distance between the lens and the subject. You'll need to change the focusing distance ...

Our approach to extending the depth of field utilizes the concept of point spread function (PSF) engineering to greatly increase the axial range clearly imaged in a single exposure. The basic concept ...

You don't buy anamorphic lenses for their ease of use, but given that smartphones are meant to be a more accessible way to ...

Viltrox's first professional LAB lens gets the Z-mount treatment, and I've already had the chance to test the lens for ...

Canon's fastest-ever 20mm lens packs an 11-blade f/1.4 aperture that should prove particularly handy for low light work, ...

A $20 microscope lens allows for some amazing shots. There are two designs that fit different cropped-image and full-frame cameras. As you might expect, the depth of field is razor-thin ...