Molecular Expressions: Image Formation with a Converging Lens.The simulation is accompanied by a classroom-ready exercise that provides directions for understanding the effect of object location and focal length upon the characteristics of the image. Users can select a candle, an arrow, or a stack of letters as the object. Principal rays can be toggled on and off. Object height and location can be easily modified along with the focal length of the lens. The lens shape can be toggled between Converging and Diverging. The Optics Bench simulation from The Physics Classroom’s Physics Interactive section provides users with an interactive Optics Bench for studying both mirrors and lenses. The Physics Classroom Tutorial, Refraction and the Ray Model of Light Chapter, Lesson 6 The Physics Classroom Tutorial, Refraction and the Ray Model of Light Chapter, Lesson 5 Readings from The Physics Classroom Tutorial Students should be able to explain the function of a lens as a component in an optical system such as the eye, a camera, a microscope, or a telescope. Students should be able to use the lens equation and the magnification ratio equation to solve problems involving the formation of images by lenses. Students should be able to construct ray diagrams to demonstrate where images are formed for objects located varying distances from a lens and be able to describe the characteristics of the resulting images that are formed. Students should be able to describe the manner in which light refracts through converging and diverging lenses and explain why such refraction results in the formation of a real or a virtual image. Book traversal links for Noflexar 400mm f/5.Teacher Toolkits » Lenses » Lenses - Complete Toolkit Moderately low contrast in center and corners atf/5.6 (11) moderate contrast in center andĬorners at f/8 (16) moderately high contrast in center and moderate in corners at f/11 (22) to f/22 (44) moderate contrast in center and Notes: *Effective aperture in parenthesis (). OM-4T with mirror & diaphragm prefire with Bogen Telephoto Lens Support & monopod supporting camera. Noflexar 400mm f/5.6 (Novoflex System) with Olympus 2X-A Teleconverter Moderately high contrast in center at all apertures moderate contrast images in corners at all apertures except f/22 (32), where they are moderately high. OM-4T with mirror & diaphragm prefire with Bogen Telephoto Lens Support & monopod supporting camera - different lens than above. Moderately high contrast but lack of resolution. OM-1 with mirror lockup and second tripod supporting hood Noflexar 400mm f/5.6 (Novoflex System) with Olympus 1.4x Teleconverter High contrast in center and corners at f/22 to f/32. High contrast in center and moderate contrast images in corner at f/5.6 and f/8 very highĬontrast in center and moderately high contrast in corner at f/11 very high contrast in center and high contrast in corners at f/16 moderately Causes a blurry focusing images away from center on a 2-4 focusing screen - a combination that should be considered unusable. Notes: A workable combination using the Bogen Telephoto Lens Support, offering much better lens support than previous tripod mounted schemes. OM-4T with mirror & diaphragm prefire and Bogen Telephoto Lens Support - same lens as OM-2000 test. Pistol grip - but unavailable that way for testing. Best employed on a tripod with a tripod collar forward of the Notes: High contrast slightly cooler images than with a 400mm f/6.3 Zuiko. OM-2000 with mirror prefire and second tripod supporting hood - camera rightside up, but mounted to tripod with head oriented vertically Notes: Exceptional ease of focusing handheld due to Novoflex rapid focusing system high contrast at f/8 to f/16 remarkably bright viewfinder image for a super telephoto of this aperture, although some difficulty in finding correct focus when used in typical overcast sunlight (EV12). OM-1 with mirror lockup & second tripod supporting hood - camera
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