Canon Speedlite 420EX Instruction Manual - Page 51
Specifications, Camera's, Flash, Exposure, Warnings, Preconditions, Assist, Emission
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Major Specifications Camera's Flash Exposure Warnings Mode Warning Indication Description Remarks Program AE Minimum aperture setting blinks. Aperture-priority AE Fastest sync speed blinks. The subject is too bright. Attach a neutral-density (ND) filter to the lens to reduce the amount of light received by the camera. The background will be overexposed. Only the flash exposure setting for the subject is correct. Setting a smaller aperture could stop the shutter speed from blinking. Shutter speedpriority AE Minimum aperture setting blinks. Maximum aperture setting blinks. The background will be overexposed. The background will be underexposed. Only the flash exposure setting for the subject is correct. Preconditions for AF-Assist Beam Emission 420EX & EOS Camera Combination AF-assist by 420EX AF-assist by the Camera EOS 30/ EOS ELAN 7E, EOS-1V, EOS 300/REBEL 2000. EOS-3. EOS IX 7/IX Lite, EOS IX, EOS REBEL G/500N, EOS ELAN II/II E150/50 E. EOS-1N. EOS-1N RS, EOS REBEL II/REBEL S 11/1000 N/1000 FN, 0 EOS ELAN/100, EOS REBEL/REBEL S/1000/1000 F, EOS 700. EOS RT. EOS-1. EOS 630/600, EOS 850. EOS 750. EOS 620, EOS 650 EOS 3000/88, EOS 5000/888, EOS REBEL X/REBEL XS/500, EOS 5/A2/A2E. - 0 EOS 10/10S • If the EOS camera has multiple focusing points and ocus cannot be achieved with the 420EX's AF-assist beam or if the 420EX's AF-assist beam is not emitted. focus with the center focusing point. 51