Metz 60CT-1 vs 60CT-4
If you have access to both Ct-1 and Ct-4 , you must go to CT-4 without any question.
Most importantly, trigger voltage of CT-4 is only 5v , thus being the digical camera safe, while Ct-1 is about 20v !
Also Ct-4 has control dial down to 1/256th of flash power manually.
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