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Magic Lantern is a firmware add-on for various Canon digital single-lens reflex (DSLR) cameras and the EOS M. [2] It adds features for DSLR filmmaking and still photography, and is free and open-source. Magic Lantern was originally written for the Canon EOS 5D Mark II [3] by Trammell Hudson in 2009 after he reverse engineered its firmware. [1]
On a sunny day and with ISO 100 film / setting in the camera, one sets the aperture to f /16 and the shutter speed (i.e. exposure time) to 1 / 100 or 1 / 125 [2] seconds (on some cameras 1 / 125 second is the available setting nearest to 1 / 100 second).
One then reframes the scene and fully depresses the shutter to take the photo. Unlike other modes, this also sets focus and requires two separate metering/focus stages. A-DEP: [3] Canon also offers A-DEP (Automatic DEPth of field) mode on some cameras, which sets the depth of field and focus in a single shot. However, this requires lining up ...
Detail of front of Kodak Retina Ib 35mm camera (c. 1954) showing the EV setting ring that couples aperture and shutter speed settings A Kodak Pony II camera (1957–1962) with exposure value setting ring. This camera has a fixed shutter speed, so the "EXP VALUE" ring simply sets the aperture. On most cameras, there is no direct way to transfer ...
The shutter speed dial of a Nikkormat EL Slow shutter speed combined with panning the camera can achieve a motion blur for moving objects. In photography , shutter speed or exposure time is the length of time that the film or digital sensor inside the camera is exposed to light (that is, when the camera 's shutter is open) when taking a ...
Canon, Pentax and Leica cameras use 'Av' and 'Tv' to indicate relative aperture and shutter speed as well as to symbolize aperture priority and shutter priority modes. Some Pentax DSLRs even provide a 'TAv' exposure mode to automatically set the ISO speed depending on the desired aperture and shutter settings, and 'Sv' (for sensitivity priority ...
Hardware and software ("firmware"), built into the camera, measures luminance of the subject and automatically sets shutter speed, lens aperture or sensitivity; this also allows the camera to set the aperture for manual lenses fixed with an AE chip. [4] AE-L or AEL: Automatic exposure lock. Technology for holding an exposure setting from one ...
It is the same focusing screen design that is used in the newest model of the top-of-the-line Canon F-1 (known as the New F-1). The AE-1 Program retains the older A-series type electromagnet-controlled cloth-curtain shutter that limits top shutter speed to 1/1000 of a second, together with a rather slow flash sync speed of 1/60 second. In the ...