Focus (optics)

In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge. Although the focus is conceptually a point, physically the focus has a spatial extent, called the blur circle. This non-ideal focusing may be caused by aberrations of the imaging optics. In the absence of significant aberrations, the smallest possible blur circle is the Airy disc, which is caused by diffraction from the optical system's aperture. Aberrations tend to get worse as the aperture diameter increases, while the Airy circle is smallest for large apertures.

An image, or image point or region, is in focus if light from object points is converged almost as much as possible in the image, and out of focus if light is not well converged. The border between these is sometimes defined using a circle of confusion criterion.

A principal focus or focal point is a special focus:

Focus…

Bernard Edwards, Jr., better known as Focus..., is an Atlanta-based record producer who first rose to fame when signed to Dr. Dre's Aftermath Entertainment. Since then he has produced tracks for Dr. Dre, Eminem, Snoop Dogg, Kendrick Lamar, Lil Wayne, Jadakiss, Christina Aguilera, Jennifer Lopez, Beyoncé Knowles, 50 Cent, Busta Rhymes, Bishop Lamont, Tony Yayo, Stat Quo, Outlawz, The Game, Jay Rock, Schoolboy Q, Mac Dre, Ice Cube, Anderson Paak, Jon Connor, Joe, Marsha Ambrosius , Slum Village amongst many others.

Biography

Focus... is the son of the late Bernard Edwards, co-founder of disco and R&B band Chic. He was born in Manhattan, New York, and raised in the Tri-State Region. Edwards, Jr credits his father with his love for the production side of music, which he developed from an early age, attending numerous studio sessions with his father.

Focus...'s production talents were first recognized by Dr. Dre when an artist Edwards, Jr had produced, Daks, greatly impressed the Aftermath label head. signed Focus... so that the two could then continue working together.

Focus (Holly Starr album)

Focus is the second studio album from the Christian singer-songwriter Holly Starr. The album released on October 2, 2012 via Save the City Records. The producers on the album were Chuck Butler, David Garcia and Christopher Stevens. The album received critical acclamation from music critics, yet it did not get much commercial success because it failed to chart.

Background

The album released on October 2, 2012 by Save the City Records, and the producers on the album were Chuck Butler, David Garcia and Christopher Stevens. This was the second studio album from the songstress Holly Starr.

Critical reception

Focus garnered critical acclaim from eight music critics. Robert Ham of Allmusic rated the album four stars, calling it a "pleasant surprise" because it kept up with contemporary musical trends. At Cross Rhythms, Matthew Cordle rated the album a perfect ten, noting how the album comes "with a cleaner, tighter, more stripped-back sound, less electric and more acoustic" than its predecessor, and it is "Impeccably produced, this is a thoroughly modern pop sound conveying a thoroughly ancient message." Christian Music Zine's Joshua Andre rated the album four-and-three-fourths, saying that this is a "brilliant" release on which "Holly's poignant lyrics and well-crafted pop melodies and ballads is sure to propel her soon, if not already, into the same league and caliber of songwriting as Nichole Nordeman and Jason Ingram." Grace Thorson of CM Addict rated the album four-and-a-half stars, affirming that the release is "well-rounded".

Focus (Polish magazine)

Focus is a Polish scientific monthly magazine published in Warsaw, Poland.

History and profile

Focus was first published in September 1995 by Gruner and Jahr Polska. Some popular articles are "Zgłoś Miejsce", "Biologia Dla Zwykłego Człowieka", and "Criminal Chemia." The magazine has its headquarters in Warsaw.

See also

References

External links