Disappointing Flash efforts
Today, I took some time to "experiment" with the Pixel KING (TTL transmitter and receiver set) to see just how capable they were with the SONY HVL flashes I have and the Metz 76 MZ5 w/ 3302 adapter foot (SONY-proprietary).
Now, when the Metz 76 is directly connected to the camera, w/ the special TTL-adapter for SONY... it is fully TTL responsive, through the camera's upper hot shoe. That includes the pre-flash measurement and the subsequent calculated flash power for the shuttered image. I found it amazing just how accurate the flash determination is, actually.
I, then, added just the Pixel KING transmitter to the equation, to facilitate an on-the-camera TTL shot, under nearly the same distances and position. You need to understand that the Pixel KING transmitter unit also has a SONY-style hot shoe built into it, so you can still effectively mount a flash on the hot shoe, as well as have an RF-transmision sandwiched between the flash and the camera. It's kind of neat, actually. I mean, what's an inch or two between friends, right?
BUZZ! TTL didn't work. The pre-flash misfired and TTL was effectively useless. I did this several times, to make sure, but it was not working correctly! I was able to get successful synchronization with the flash in "A" mode and "M" mode, but just not "TTL" mode.
Okay, after calming down... I replaced the Metz 76 with the SONY HVL-F58AM flash, under the identical flash scenario:
First, with the '58 on the hot shoe. Worked fine.
Next, with the '58 "sandwiching" the Pixel KING. Wow, still worked fine. Okay, so what's with the Metz?
I, then, took the '58 off the PK transmitter and placed it on a PK Receiver unit, on my stubby tripod.
I fired it up and yes... still a successful TTL shot. I then tried it with the Metz in the same way... again, TTL failed.
I guess I find this a little hard to resolve, because the Metz 76 never failed directly attached to the camera's hot shoe. TTL was razor accurate. But when I introduce the PK... trying use the TTL function on the Metz... it fails miserably. Heck, the timing/synchronization is way off and there is no successful flash for the image.
Again, to make clear... the SONY HVL does not have this issue. It works quite successfully with the Pixel KING, in all flash modes (TTL/M).
So... how this relates to the "RF standard" in-camera-body. I am certain that all protocols would work if "the standard" was shared among ALL camera manufacturers. Heck, you could even have a C-N-P-S-O-? (Canon-Nikon-Pentax-Sony-Olympus-???) switch on the flash units, if you need to be picky. What I do not understand is this failure of the third-party Pixel KING to relate to the Metz flash. You would think it would be transparent, but it is not.
Just some footnotes if you are flashing your way to happiness.