harrym wrote:Interesting article you quoted, it says that the radio controlled system transmits the data optically.
Hmmmm.......
The Nikon E-520 camera manual specifically states that the system is radio controlled.
I presume you mean the olympus E-520? I don't see a mention of a 520 on the nikon site anywhere except for the coolpix s520.
The manual for the E-520 is viewable here:
http://www.olympusamerica.com/files/oim ... ual_EN.pdfIt does the same thing I mentioned earlier- calls it wireless (which it is) but does not ever refer to radio controlled. The diagram in fact shows that the remote flash has a sensor which must be in line of sight with the camera. This would indicate agreement with the previous review which said it was an optical connection (using most likely infra red)
Looks like we are not alone in wondering about this, here's some folks that were trying to figure out what method was used
http://fourthirds-user.com/forum/showth ... 659&page=2The closest to an answer they got was:
The E-3 uses a near-infrared beam to transmit controlling signals to the flash units that comes out of a special port in the camera. The sensors on the flash units must be turned line-of-sight to the camera.
but olympus seems to be going out of their way to obscure info on this.