Canon's RF 16-28mm F2.8 IS STM offers ultra-wide versatility, 5.5 stops of stabilisation, and lightweight portability for ...

Canon’s RF 16-28mm f/2.8 IS STM is a full-frame wide angle zoom with weather sealing, IS and a budget-friendly price ...

Abstract: The performance of aspheric optics is important for optical imaging ... For different radii of curvature optical elements, the method achieves measurement standard deviations as low as ...

Despite its compact size and surprisingly lightweight, the lens boasts an advanced optical structure with 11 elements in 9 groups, including extra-low dispersion (ED) glass and aspheric elements to ...

Using a computer model of the retina, researchers have been able to trace the cause of the expanding hole illusion ...

The RF 16-28mm F2.8 IS STM is Canon's newly launched ultra-wide full-frame lens offering powerful creativity, a fast f/2.8 aperture, 5.5-stop optical image stabilization, and a compact design for ...