Sony EVIHD7V Product Manual (HD Color Video Camera) - Page 8

Basic Functions Basic Functions Zoom The camera employs an 10× optical zoom lens combined with a digital zoom function allowing you to zoom up to 40×. Lens specifications: Optical 10×, f = 3.4 to 33.9 mm (F1.8 to F2.1) The horizontal angle of view is approximately 70 degrees (wide end) to 8 degrees (tele end). Digital Zoom enlarges the center of the subject by expanding each image in both the vertical and horizontal directions. When 4× digital zoom is used, the number of effective picture elements in each direction reduces to 1/4 and the overall resolution deteriorates. You can activate the zoom in the following two ways: • By pressing the T (tele) or W (wide) buttons on the Remote Commander. • Using a VISCA Command Using Standard Mode Using Variable Mode There are eight levels of zoom speed. Direct Mode Setting the zoom position enables quick movement to the designated position. Focus Focus has the following modes, all of which can be set using VISCA Commands. • Auto Focus Mode The minimum focus distance is 100 mm at the optical wide end (extreme close-up settings with VISCA control) (distance from the front end of the lens). • Manual Focus Mode MF (Manual Focus) has both a Standard Speed Mode and a Variable Speed Mode. Standard Speed Mode focuses at a fixed rate of speed. Variable Speed Mode has eight speed levels that can be set using a VISCA Command. To stop the required operation after sending a Standard Speed command or a Variable Speed command, send the Stop command. • One Push Trigger Mode When a Trigger Command is received, the lens moves to adjust the focus for the subject. The focus lens then holds the same position until the next Trigger Command is input. • Infinity Mode The lens is forcibly moved to a position suitable for an unlimited distance. • Near Limit Mode Can be set in a range from about 3 m (2000) to 10 cm (7600). The focus range is narrowed by excluding the unnecessary range. 8