Thanks; I'll wait! An important date is Sept 12 re A99 annoucements... In the meantime the wireless flash on my a900 is gone. An avid student of the Friedman archives, I am having a hard time without that capability.
Are you sure that you have not inadvertently changed a setting in the camera? You have four choices in the 1st menu, page 2, Flash mode, and it is quite easy to accidentally change it, or if using rear sync, forget to set it back to wireless. Worth a check.
If it is not the above then it may be the flash you are using attached to the camera, if that is how you are doing it. That flash may not be working correctly, or you may be setting it up wrongly. If you are using a sync cord then it me be faulty. I say all this, not to question your competency which I am sure is impeccable, but because it is what I have done on many occasions.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.