Lens

A cellphone allows travelers to have a camera always at the ready. The latest phones offer multiple lenses with better resolution and enhanced macro and telephoto capabilities, enabling virtually every moment to be captured for posterity. This can be both a blessing and a curse.

A new generation lens mounted on helicopters developed by Turkey is capable of detecting faces from as far as three kilometers, the Turkish Security Forces have said, state-run Anadolu Agency reported on May 2.