I just picked up a 540 & 360 for my K10D. Unfortunately, the manuals are woefully deficient and the K10D manual doesn't cover the recent changes to wireless flash control under the 1.1 firmware update.
So, I have several questions:
1) With the built-in flash set to "controller" and the 540 in wireless P-TTL mode, does changing flash compensation on the K10D have any effect on the 540's output? It doesn't seem so. I guess this means any changes I want to make to flash output (compensation) need to be done on the 540 itself?
2) Again, with the built-in flash set to "controller" and the 540 in wireless P-TTL mode, flash compensation doesn't seem to have any effect at all. I pointed the 540 at my subject and started at 0.0. Then I dialed the compensation on the 540 down to -1, -2 & -3... but the flash output didn't change at all. Why not?
3) In the K10D Firmware v.1.1 instructions, there's a line that says "High Speed Sync is not available in the wireless mode". However, p.46 & 47 in the 540 manual are titled "Wireless High-Speed Sync Photography" and seem to discuss the procedure for this function. So which is it? Is High-Speed Sync possible with wireless flash or not?
4) Regarding Wireless High-Speed Sync, on p.47 of the 540 manual step #4 says "Enable the built-in flash unit of the camera and display (W HS) on the LCD panel." What LCD panel does this refer to - the K10D or 540? In either case, I do not see a "W HS" option. Where is it?
5) Is contrast control / flash balancing possible in wireless P-TTL mode with 2 flashes? i.e. Can I set the 540 to 1/1 and the 360 to 1/2 if I want a 1:2 (or is it 2:1?) lighting ratio, where the output is controlled by P-TTL? Then I can adjust the output of the 540 (and by extension, the 360) by using the flash-compensation dial on the 540?
Any help you can offer is appreciated.
Thanks.
Last edited by switters; 10-05-2007 at 11:30 AM.