Prior to the release of the PCT-100, this was the only PC connector available for Minolta's D7 & D5. It still has the advantage of not having to set the camera to brighten the EVF everytime you want to use an external flash or studio flash. As with the PCT-100, you still have to set the camera for manual exposure mode. However, unlike the PCT-100, this adapter automatically sets the camera into the electronic flash mode when it is inserted into the camera's hot shoe as well as brightens the viewfinder. Another advantage is that you cannot forget to reset the camera for non brightness gain when not using the Flash Sync Module as it is automatically resets as you dismount the module off the camera's hotshoe. For additional information, see Bryan Bigger's mini review at http://webpages.charter.net/bbiggers/DCExperiments/html/d7_faq.html about halfway down under the section titled "Can I attach a studio flash?" Item #6. If interested in this product, please email me at eps-llc@attbi.com