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Forum: Troubleshooting and Beginner Help
02-11-2012, 05:33 AM
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Me too. It is too difficult to decode the communication between body and flash? Or there is canon/nikon dominance and for pentax it wold be non profitable....?
I am thinking about trying to decode some communication. Especially the 2nd curtain sync. With a little luck, maybe will be able to simulate the flash presence with microchip on hotshoe and firing the trigger (rf602tx) on 2nd curtain sync. This would be enough for me :) PTTL with radio signal would be nice, but too difficult, imho.
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Forum: Troubleshooting and Beginner Help
02-10-2012, 08:55 AM
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I think, that your setup will not work. In wireless (master/slave) mode, you cannot set 2nd curtain with pentax flashes...your master/slave will flash always on 1st curtain - if I remeber correctly.
There are flashes with built in trigger to ignore preflash. I have one yongnuo 560 and it works...But if I mixed it with pentax flash booth as wireless slave and control them from on camera (540fgz as master), the result is that only yongnuo is visible in exposure...The pentax slave fires, but not on the right time :)
Metz flashes ca do wireless and 2nd curtain, but I don't have them :)
The working solution I found with my setup was described above. And I think it gives me a pretty good results. Manual flashes for atmosphere (especially in large rooms) and on camera pttl for fill.
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Forum: Troubleshooting and Beginner Help
02-10-2012, 08:03 AM
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My solution for wireless flash and 2nd curtain sync is:
- One flash on the camera (eg. af540fgz). I am using this flash in pttl and 2nd curtain sync
- DIY flash trigger to ignore preflash and fire on real flash. Trigger is connected to RF-602TX.
- Any number of RF-602RXs with manual flash
The flash trigger is mounted on af540 head using velcro and is connected via pc-sync with rf-602tx...it looks maybe a little crazy, but IT WORKS!
My plan is to disassemble the transmitter and put it into one box with flash trigger.
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