The refractive index of current eyeglass lens materials ranges from 1.498 (CR-39 plastic) to 1.74 (a specific variety of high-index plastic). So for the same prescription power and lens design, a lens made of CR-39 plastic will be the thickest lens available, and a 1.74 high-index plastic lens will be the thinnest.
Principal photography on the film began on April 25, 2016, in Pittsburgh, Pennsylvania, in the Hill District, and wrapped in mid-June 2016. Fences was released in the United States on December 16, 2016, by Paramount Pictures, received positive reviews and grossed $64 million.
A Clark bar ad has been painted at the corner of Bryn Mawr Road and Lyon Street in the Upper Hill, where the movie Fences begins filming this week. A fleet of vintage cars awaits the Hill District film shoot of Fences, which is set in 1957. Crews ready the Hill District set for the filming of August Wilson's Fences in the Upper Hill. A vintage car awaits its role in the movie shoot of Fences, which begins filming with Denzel Washington and Viola Davis this week. A âJeep Fleetvanâ mail vehicle on the movie set of August Wilson's Fences in the Upper Hill.