There are many enlightened people on here (clever buggers) but can anyone answer this It has just become a thought, I have the Nikkormat FT2, EL, Asiah Pentax had the K1000, Canon EOS RT Pellix The FT2 (which I know is the second hence 2 version of the FT but what was the FT for, same, K in K1000, EL and so on. Just letters thought up. E.g Canon EOS was and still is Electro-Optical System, hence Canon EOS "X", I doubt many today know that. The same as The "F" in Nikon F was selected from the term "re-f-lex" Any ideas? Canon's web site says the flash has Radio Triggering so the RT probably does stand for Radio Trigger ????