Is there any difference between the ST-E3-NR and the ST-E3-RT transmitters? Or are they both the same?

1 Answer 1


Probably not as far as functionality goes. The only place I can even find a reference to the ST-E3-NR is on web pages based in Germany. Since these are devices that use radio frequency transmissions to communicate with the same compatible flash (the Canon 600EX-RT), the regulations in Germany concerning devices using certain frequencies may be different and necessitate a slightly different version to comply with those requirements. Even the photo for the ST-E3-NR at amazon.de is of the ST-E3-RT.

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.