Thanks Jos. Even four meters is a substantial difference when shooting outdoors with no reflecting walls or ceilings. But I probably could have gotten this shot without high speed synch and perhaps even without the magnifier. But the high shutter speed probably helped it a bit since I was using a very long lens and there was a substantial amount of ambient light. More importantly, I was shooting with this rig on the camera in anticipation of finding some birds, so I fired this one off as an afterthought. Didn't want to stop and make changes.
> I have no doubts when a flash magnifier is used: with the light concentrated > in a small area as needed for 500mm lens , the guide number of the flash > goes up sharply, combined with the fact that the frog is at short distance > (4 meters in this case)means the flash can over power the available light > easily. > Using HSS or not does hardly influence that balance according my knowledge. > Using HSS can help to reduce blurr from the available light part. > If the light of the flash is far dominant over the available light, than for > the blurr or camera shake it is better not to use HSS because single flash > is normally faster than the burst of flashes in HSS mode. > Jos > > BTW nice shot Paul! :-) > > > > > -----Oorspronkelijk bericht----- > > Van: Don Sanderson [mailto:[EMAIL PROTECTED] > > > > Jos had some doubts about the flash having power enough > > for daylight HSS. > > > > > >
