I have a real head scratcher (for me anyhow)
I have a K200d and a Bower SFD926 Flash through a Tamron 17-50 2.8. I am trying to get my flash to work well as an optical slave with very strange results. Although the Bower fires no problem as a slave- it doesn't show in the images unless I set it to only 1/8 or 1/16th power in slave mode. Any more than that- it doesn't illuminate my images at all.
I am shooting in Manual (in my kitchen) at 50MM F2.8 and 1/180th of a second. I have tried slowing the shutter right down- but it never shows in the image. Eventually the image gets brighter but just due to the long exposure- not flash.
Is it possible the bower fires too quickly at the higher power? I'm just trying to wrap my head around this one
I have tried varying the power of the on-camera flash with no difference. Also- the bower is optical slave only. It works like a champ on the camera in PTTL FYI.
Any help understanding this is appreciated.