If you're getting started with portrait photography, one of the biggest questions is: what lens should I use for portraits? With the best portrait lenses coming in so many options – from affordable ...

Photography is full of fancy terms and complicated science, but we are here to explain it all to you in simpler terms. Today we are focusing on focal length. This term gets thrown around often, ...

Adaptive liquid lens: A lens based on a new electrically responsive fluid changes shape, and thus focal length, when a voltage is applied. (Courtesy: Miao Xu, Hefei University of Technology) Materials ...

Microlenses fabricated using flexible elastomers can be tuned in focal length by application of controlled strain. By varying the strain azimuthally, the lenses may be deformed asymmetrically such ...