CORRECT FLASH C CAUTION IS A FLASH WITH BOOSTER NG 20 ONLY. C FOR ME IS ESPECIALLY THE FACT THAT CAN BE DIRECTED TO FLASH THE CEILING FOR AN INDIRECT LIGHTNING THAT ATTRACTS MA. PRODUCT AND LIGHT IN AGREEMENT WITH THE COAST OF LIGHT AND HANDY NEX6. CAUTION IF YOU SCREW light anywhere SURE THE SUN VISOR DO NOT HIDE THE VIENNA FLASH. SERVED AS ALWAYS THANKS AMAZON 48H MAXI