Digix Tab 720 Firmware 26

Currently, DIGIC is implemented as an application-specific integrated circuit (ASIC) designed to perform high speed signal processing as well as the control operations in the product in which it has been incorporated. Over its numerous generations, DIGIC has evolved from a system involving a number of discrete integrated circuits to a single chip system, many of which are based around the ARM instruction set. Custom firmware for these units has been developed to add features to the cameras.

Digix Tab 720 Firmware 26

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The free software Canon Hack Development Kit (CHDK) project, started by Andrey Gratchev, has successfully enhanced many Canon PowerShot cameras without replacing the stock firmware.[28][29] It allows programmatic control of many Canon compact cameras, enabling users to add features, including games and scripts written in UBASIC or Lua. Features include shooting in RAW, USB-cable remote shutter-release, synchronized shooting between multiple cameras, motion-detection triggered photography, customizable high-speed continuous (burst) TV, Av, ISO, and Focus bracketing (increasing depth of field), 1 Gig video-size limit removed in earlier cameras, Shutter, Aperture, and ISO overrides (shutter speeds of 64" to 1/10,000" and higher).[30]

For the CHDK project to augment or extend firmware, it was necessary to obtain copies of the cameras' original firmware; in some cases this can be done via a pure software method, while others[31] rely on a method of using a blinking LED on the camera as an optical serial port to transmit the firmware to a host computer.[32]

However, to install precompiled firmware on a PowerShot camera, it is only necessary to download the correct binary and copy it to an SD memory card. If the SD card is set to lock and the boot flag is enabled when the camera is turned on, the camera will autoboot from the binary file on the card and CHDK will be loaded into the camera's RAM. If the card is unlocked or removed, the camera will start up in the original Canon firmware. CHDK will mask the lock on the SD card so that the camera will still write to it however. Alternatively, CHDK can be loaded manually from the Canon menu.

Magic Lantern is a firmware add-on written for the Canon 5D Mark II by Trammell Hudson in 2009, and ported to the 550D/T2i/Kiss X4 (1.0.8) in July 2010 by the same author. Starting September 2010, A1ex from CHDK forum and other people ported this add-on to the 550D/T2i (1.0.9), 60D, 500D/T1i/Kiss X3, 600D/T3i/Kiss X5 (1.0.1) and 50D; It also runs on the 7D.[36] The firmware is released under the GNU General Public License.[37] Originally developed for DSLR filmmaking, its feature base has expanded to include tools useful for still photography as well.[38]

Planned future features include clean HDMI output, anamorphic preview, and custom curves.[39]Because installing Magic Lantern does not replace the stock Canon firmware or modify the ROM but rather runs alongside it, it is both easy to remove and carries little risk. Canon has not made any official statements regarding the add-on firmware, either on the subject of warranty or on the features.[40][41]