Yongnuo YN-660 Wireless Speedlite Universal Master Flash Unit

Yongnuo have announced the YN660 speedlite, being the latest evolution in the very popular YN-560range of manual speedlites, with recent models providing 2.4GHz remote manual radio transceivers built inside.

The YN660 builds upon the previousYN-560 IV, now providing 6 groups in the Radio Master mode, up from just 3 previously.

As well as boosting power output to a Guide Number of 66meters(ISO 100, 200mm), which should now bring the YN660 fairly close to matching the top end Canon and Nikon Speedlites for output.

Other improvements include 20-200mm flash head zoom, lever locking foot, and updated buttons/ main controldial.

The YN660 are basic manual only speedlites when used on camera. Though their main features / functions are the remote manual Radio Master and Slave modes.?

Compatible slave flash / receiver units include YN560 IV, YN-560 III, and YN660 flashes.RF-605, RF-603 II.

Compatible transmitter / master flash units include YN560 IV, and YN660 flashes.YN560-TX.RF-605, RF-603 II.RF-602.

With the YN560-TX tranmitter, and YN560 IV / YN660 flashes providing the most functionality, including Remote Manual Power and Flash Head Zoom Control.