Aims To evaluate the 1-year efficacy of two new myopia control spectacle lenses with lenslets of different asphericity. Methods One hundred seventy schoolchildren aged 8–13 years with myopia of −0.75 ...

The aerial camera lens largely determines the performance of the camera. It is necessary to further optimize the lens to satisfy the requirements of small-scale and lightweight aircraft camera systems ...

Nikon has announced the impending release of the second-generation model for its popular Nikkor Z 24-70mm f/2.8 S lens, which ...

Point diffraction interferometry (PDI) provides a promising method for measurement of spherical and aspherical surfaces with nanometer or even sub-nanometer (RMS) accuracy. In this paper, an optimal ...

NANLITE recently announced its new. As the name suggests, the Projection Attachment features an 18° to 36° beam angle for ...

Sony lenses have powerful performance. The colors, bokeh, and sharpness are superb, and the overall design makes them easy to ...

Abstract The aspherical lens is an optical element used to effectively reduce optical aberration, a consequence of reducing the number of spherical surfaces in the complex optical system. In this ...

Ultra-wide-angle lenses tend to be bulky, and many are incompatible with filters – but TTArtisans has just launched a new ...

Nikon is updating one of the Z-mount's core lenses, just six-and-a-half years after the release of the current version. The ...

It can accept 62mm filters, and the Sony version weighs 225g (7.9oz). Sigma says that makes it the lightest lens in its ...