This product is compatible with to pay attention to the quality the price entspricht.Die flash output is for macros ausreichend.Der ring is easy on using the supplied adapters to schrauben.Was I noticed, some batteries manufacturers in AA do not fit richtig.VARTA go only with violence and out which is not necessarily on standardized mass back to lead ist.Ich've then what brought by Harma * Digital2600 * and they fit einwandfrei.Im large and whole when it is carefully deal with the appliance OK.