Pentax AF-540FGZ II Flash is Designed to be tougher, smaller and lighter, this strobe is 30% smaller in volume than its predecessor. This hot shoe mounted, bounce-and-swivel, auto-zoom flash provides a variety of advanced flash applications.
The entax ot Shoe Adapter F eatures a hot shoe connection on the top and bottom, plus a 5P (5 pin) cable connection on its side.
The Pentax TR Power Pack III is an external power pack for the AF-540 FGZ flash. It runs on six "C" cell batteries, and will significantly increase the flash capacity and decrease the recycling time of the flash.