use the flash on my Leica M's, the TTL can no known! In this respect, this flash is exactly what I need! Fed power and processed very neat. The only (minor) gripe that strikes me is the friemelige locking wheel on the foot end. This makes Canon eg with the small verschiebaren Ironing much better! Otherwise I get a device that conforms to the dimensions in about a Canon 580 EX II, but this is a little easier and IMHO better weight distribution than its Canon counterpart! The display is now not the best, but more than adequate! The integrated radio receiver works as desired and save a few euros by eliminating an external receiver! In short: I get for a few Euros a extremely powerful, easily operated and lightning which in no way provides grounds for criticism by the mentioned locking wheel. Who is manually operated flashes with this device more than just well. Therefore, full 5 stars
