Canon PowerShot G11 Professional Products 2010 Brochure - Page 14

Smarter Flash Photography Integral to the EOS System, Canon Speedlites are the ideal flash light source for EOS SLR cameras. They are technologically advanced to provide perfect exposure and illumination with just about any subject. They are also highly adaptable, providing an endless variety of configurations and versatile shooting options. For professional flash photography, rely on Canon Speedlites to solve the most demanding lighting challenges. ©2009 John Huba. All Rights Reserved. E-TTL II Canon E-TTL (Evaluative Through-The-Lens) flash exposure control uses a preflash fired after the shutter button has been fully depressed - but before the camera's reflex mirror goes up. The camera's Evaluative metering sensor - the same sensor that reads ambient light - is used to compare the ambient light values with the light reflected from the subject by the preflash. The camera then calculates and stores the flash output required for optimum exposure of the main subject and the background. E-TTL II additionally incorporates distance information from compatible EF lenses for the most precise flash exposure control. For example, it ignores sensor areas that report abnormally high levels, eliminating underexposure that can otherwise be caused by straight reflections. Correct flash exposure is ensured even when shooting a subject with a highly reflective object in the background, or if the subject itself is highly reflective. In addition, because distance information is used in calculating the flash output level, E-TTL II prevents over-exposure when photographers lock focus and recompose. 139 Wireless Auto Flash Control Multiple Speedlites can obtain lighting effects not possible with a single flash. While previous multiple-flash setups required cumbersome wires to connect the camera and flashes, compatible EOS Speedlites can be used as wireless Slaves. With a Speedlite 580EX II or Speedlite Transmitter ST-E2 attached to an EOS Digital SLR, an unlimited number of compatible EX-Series Speedlites can operate as dedicated Slave units. With nothing more than an EOS camera and a number of Speedlite flashes, the opportunities for creative lighting are endless. Macro Photography and Wireless Options The Canon Speedlite flash system family includes versatile solutions for macro photography requirements: The Macro Ring Lite MR-14EX features twin circular flash tubes that can be fired at equal or uneven power with a ratio that can be varied over a six-stop range. One or more compatible EX-Series Speedlites can be used as wireless slaves along with the MR-14EX. Incandescent focusing lamps and two types of modeling flash are provided to enable preview of lighting effects. The controller unit features an illuminated full-information LCD panel and accepts optional hi-capacity battery packs. The Macro Twin Lite MT-24EX gives serious close-up, nature and macro enthusiasts a different, directional option in macro lighting. The two separate flash heads can be swiveled around the lens and aimed independently. They can even be removed from their holder and mounted off-camera. Flash head output can also be independently adjusted with easy ratio control over a six-stop range. Like the MR-14EX, the Macro Twin Lite MT-24EX is fully E-TTL compatible with all EOS SLR bodies. Wireless E-TTL flash control is possible with one or more 580EX II, 580EX, 550EX, 430EX II, 430EX, or 420EX Speedlites configured as slave units. The Speedlite Transmitter ST-E2 is a dedicated controller that can be used with an unlimited number of compatible Speedlite slave flashes. The transmitter is effective over distances up to 33 ft. outdoors and 49.5 ft. indoors. Speedlite 580EX II • Durable, weather-resistant construction with extensive rubber gaskets and seals. • Metal flash "foot" with moving rubber cover for weather-resistance. • External flash sensor for non-TTL auto flash. • PC socket for expanded off-camera versatility. • Recycling is about 20% faster than the original 580EX, and quieter. • Same powerful Guide Number (max. 190-feet) and 24mm wide coverage (with 14mm wide panel) as the previous 580EX. • Off-Camera Shoe Cord OC-E3 and Compact Battery Pack CP-E4 form a weather-resistant system when combined with EOS-1Ds Mark III or EOS-1D Mark IV. • Full compatibility with all EOS SLR cameras and certain PowerShot models. Speedlite 430EX II • Excellent build quality, including a metal foot for added strength • Approx. 20% faster recycling time, compared to the previous 430EX. • One-touch, quick-lock mechanism for easy attaching/detaching flash from camera. • Full flash control possible on camera menu, with compatible EOS Digital SLR cameras. • Virtually silent flash recycle. • Zoom flash head covers range of 24-105mm; maximum guide number 141 ft./43m at ISO 100 Speedlite Transmitter ST-E2 • Dedicated transmitter to control unlimited number of Slave flashes. • Speedlites 580EX II, 580EX, 550EX, 430EX II, 430EX and 420EX can be controlled. • Controls Slave units up to 33 ft. outdoors and 49.5 ft. indoors. • Ideal compact alternative for wireless E-TTL. Macro Twin Lite MT-24EX • Attaches to all Canon EF Macro lenses (EF 180mm f/3.5L requires Macro Lite Adapter 72C. EF 100mm, f/2.8L IS requires Macrolite Adapter 67). • Ideal for close-up lighting with a directional "look." • Heads can be swiveled or bounced and can be removed from mounting ring for added control. • Powerful Guide Number of 78 (feet, at ISO 100), full E-TTL control and E-TTL features including FEL, Hi-Speed Sync and Flash Exposure Blacketing. • Incandescent focusing lamps, and two different types of 1-second modeling flash allow easy focusing and previewing of lighting effects. Macro Ring Lite MR-14EX • Twin-tube ring lite designed for close-up photography with EF Macro lenses; Flash tubes can fire together or independently. • Compatible with all EOS bodies. • Supports E-TTL Wireless Autoflash in conjunction with one or more compatible off-camera Slave Units. • Incandescent focusing lamps and two forms of modeling flash permit preview of lighting effects. • Illuminated LCD panel for easy flash settings in any lighting condition. 140