Large format refers to any imaging format of 4×5 inches (102×127 mm) or larger. Large format is larger than "medium format", the 6×6 cm (2¼×2¼ inch) or 6×9 cm (2¼×3½ inch) size of Hasselblad, Rollei, Kowa, Pentax etc. cameras (using 120 and 220 roll film), and much larger than the 24×36 mm (~ 1.0 x 1.5 inch) frame of 35 mm format.

The main advantage of large format, film or digital, is higher resolution. A 4×5 inch image has about 16 times the area, and thus 16× the total resolution, of a 35 mm frame.

In early photography, large format was all there was, and before enlargers were common, it was normal to just make 1:1 contact prints from a 4×5, 5×7, or 8×10 inch negative.

The most common large format is 4×5 inches, which was the size of common cameras used in the 1930s-1950s, like the Speed Graphic, Crown Graphic, Graphlex, and many others. Less common formats include quarter-plate, 5×7 inches, 8×10 inches (20×25 cm); the size of many old 1920s era Kodak etc. cameras (various versions of Kodak 1, 2, 3, and Master View cameras, to much later Sinar etc. monorail studio cameras), 11×14 inches, 16×20 inches, 20×24 inches, various panoramic or "banquet" formats (such as 4×10 and 8×20 inches), as well as metric formats, including 9×12 cm, 10×13 cm, and 13×18 cm, and assorted old and current aerial image formats of 9×9 inches, 9×18 inches (K17, K18, K19, K22 etc.)), using roll film of 4, 5, 6, 7, 9, or 10 inches width or digital sensors, view cameras (including pinhole cameras), reproduction / process cameras, and x-ray film and digital cameras.

Benjamin Joseph "Ben" Horne is a character from the television series Twin Peaks, created by David Lynch and Mark Frost, portrayed by Richard Beymer. His middle and last name is based on real life department store owner Joseph Horne founder of Horne's in Pittsburgh where Mark Frost is from, while his and his brother Jerry's first names are based on the ice cream brand Ben & Jerry's. He is the richest citizen of the eponymous town, Horne is one of the few citizens whose sensibilities and dress aren't still in the 1950s; Horne is an archetypical 1980s cutthroat businessman, whose greatest desire in life appears to be the acquisition of more money. As the series progressed, he was revealed, like many of the show's other characters, to have a hidden side; although, since Ben Horne's public persona was evil, his "dark side" turned out to be good, revealing him as a lonely, depressed man, disappointed with how his family and his life turned out.

For the first sixteen episodes of the series, he acted as one of the primary antagonists not directly linked to the series' main storyline of the Laura Palmer murder. In dramatic irony, he consistently came under suspicion for Laura's murder, of which he was wholly innocent, while never being suspected of the myriad criminal activities of which he was actually guilty.