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Designed for automatic operation only, the 220EX Flash Unit excels at providing natural-looking balanced flash exposures. When attached to the EOS IX, EOS Elan II/Elan IIe/IIe, or EOS Rebel G, the 220EX incorporates the superior technology of Canon's unique E-TTL evaluative pre-stored flash exposure control system, FE Lock for a new dimension of creative control and FP Flash(High Speed Sync) for flash photography up to maximum shutter speed. When used with other EOS cameras, or the T90, it operates as a TTL autoflash (off-the-film flash metering).
When in E-TTL operation, flash exposure is measured and controlled by the camera in combination with Canon's AIM system. Subject position, ambient light level, evaluative metering and pre-flash data are instantly analyzed, including heavy backlighting or reflections from background windows or mirrors.
Compatible w/ all EOS cameras. E-TTL II w/ EOS-1Ds Mark III, 1Ds Mark II, 1D Mark III, 1D Mark II N, 1D Mark II, 5D Mark II, 5D, 50D, 40D, 30D, 20D, Rebel T1i, Rebel XSi, Rebel XS, ELAN 7NE, 7N, Rebel T2. E-TTL w/ EOS-1v, 1Ds, 1D, 10D, D60, D30, Digital Rebel XTi, Digital Rebel XT, Digital Rebel, D2000, ELAN 7E, 7, IIE, II, Rebel Ti, K2, 2000, G, GII, IX, IX Lite.
