OCF flash Yongnuo YN660

The Yongnuo YN660 is a new, massively reworked and enhanced replacement for the popular strobist OCF flash Yongnuo series YN560. It is a manually adjustable powerful speedlight that can be fired remotely via 2.4 GHz radio trigger or controller, or can operate as a radio controller itself. The YN660 retains the ability to be triggered via optical impulse from another flash (S1/S2).

The YN660 has become the new primary choice for strobists as it brings several notable improvements over its predecessor:

• Power output has been increased to match the best-in-class performance of Canon Speedlight 600EX-RT;
  
• The flash head is bigger and deeper, with extended zoom abilities that cover 24-200 mm 1.5× crop-relative focal distance;
• The display is much larger, with adjustable contrast and backlight
• The battery compartment door is much stronger and features a locking mechanism
• The mount locking mechanism is improved and now has a rubber protector for the hot shoe
• The flash body is much more rugged and capable of withstanding rough use
• A PC sync socket and a thread for secure fixing to a light stand have been added

The Yongnuo YN660 has a built-in radio receiver/transmitter that operates at the 2.4 GHz SMI range and supports 16 different channels with 6 flash groups per channel. It is fully compatible with the RF-602/603/605 trigger series, the YN560-TX remote controller and the YN560-III and YN560-IV. Depending on the triggers used, the following features are possible:

When the YN660 is used as a commander, it has the same control features as the YN560-TX controller.

The Yongnuo YN660 OCF flash ships with a soft carry pouch, desktop stand and a user guide.