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This firmware update (Version 1.2.4) is for using the EOS-5D Mark II with the WFT-E4 II, 
and for correcting the phenomenon described below.
Corrects a phenomenon that visible noise may appear in images taken by continuous Bulb shooting. 
This firmware update corrects a phenomenon that if the [C.Fn II-1 Long exposure noise reduction] 
setting is set to [2: On], noise may appear in images that are captured while the 
previous image is still being generated
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