Canon’s new RF 600mm f/11 IS STM (top) and RF 800mm f/11 IS STM lightweight super-telephoto lenses. (Source: Canon.) Both lenses are significantly smaller, lighter and cheaper than existing Canon EF ...

The right lens is paramount for successful astrophotography, dictating how much light you can gather and getting the right field of view for your chosen target. This guide dives into the best ...

[3] Sharply autofocused ring-Airy beams transforming into non-linear intense light bullets. Nature Communications (2013). [4] Self-healing properties of optical Airy beams. Optics Express (2008).

The behavior of a light beam traveling in continuous or periodic lens-like media is considered. The light beam is assumed to be launched with a Hermite-Gaussian or Laguerre-Gaussian field distribution ...

This paper considers a distributed convex optimization problem with inequality constraints over time-varying unbalanced digraphs, where the cost function is a sum of local objective functions, and ...

It’s located 11 million light-years away in the Southern Hemisphere’s constellation Sculptor, and easy to view with binoculars or small telescopes. “The Sculptor galaxy is in a sweet spot,” the ...

When applied to an unconstrained minimization problem with a convex objective, the steepest descent method has stronger convergence properties than in the noncovex case: the whole sequence converges ...

Motorola Mobility was established in 2011 following the split of Motorola into two companies, with Motorola Solutions catering to the enterprise segment. Acquired soon after by Google, Motorola ...