Sigma 530 DG super flash not kompatible with Nikon D90 both Displays are toggeling themselves again and again
Sigma EF 530 DG SUPER flash for SONY Alpha/Minolta
Funciones de un sigma 530 DG Super
Note: This occurs even if I get close with Paper, Plastic or other non-leading materials. So our guess is that it might be a magnetic field that produces this error. But how do I fix this?
I'll link an article here eventually once I write it. :)