Originally posted by peter sellmer Hi from Peter in Costa Rica! I have a Vivitar 285hv which works without a problem on my K10d. I recently bought a flash bracket and promaster off-camera TTL cord for Pentax but the 285 does not work when I attach it to the cord. Also, if I mount the cord on the bracket the flash triggers constantly every time it powers up! I am a flash novice so would appreciate any help in this matter. Thanks!
This is the flash cord you want and need for that Vivatar 285 HV.
It allows you to use the removable sensor from the flash and has a sync pin inside the cord; gerat if you break the hot shoe and try to repair it with a metal one and do a poor job of soldering the contacts like I did!
You can find them on Ebay for about $20. If you are interested, let me know and I will research availability. The cord you have is for dedicated flash and who knows what could be wrong with it since it is a third party brand, and it should work!
Notice I have a Wein Safe sync attached to the cord; be aware that some older 285's especially the non HV could have high trigger voltages which aint good for your modern D-SLR.