Hi Marc,
I have not tried 1/500 but I see no reason why it will not work. Give it a try out of water first, you should be able to tell after the first shot.
If it works, which I suspect it will, then your shots will have dark distant background. Not a problem with most macro shots. If are doing shots with distant background and want some natural light effect in the distant background, you may need to reduce the speed.
The the speed set on the camera has no effect on the strobe. Strobe operating range is governed by the guide number, which for two YS110's I calculate is about 30 out of water (approx 10 to 15 underwater). For ISO 100 and TTL mode set on the strobes, the calculated range will be approximately as follows:
Wide angle
Aperture Distance (max)
f2.5 4.0-6.0m
f9.1 1.1-1.6m
Full Zoom
f4.4 2.2-3.4m
f15.8 0.6-0.9m
Staying within these ranges of f stop and distance should be handled by the TTL system.
By the way, I now have two YS110alpha's. I met someone that had a single YS110 and wanted a second so I sold him mine and bougth the second YS110alpha.
Cheers
Treb
I have not tried 1/500 but I see no reason why it will not work. Give it a try out of water first, you should be able to tell after the first shot.
If it works, which I suspect it will, then your shots will have dark distant background. Not a problem with most macro shots. If are doing shots with distant background and want some natural light effect in the distant background, you may need to reduce the speed.
The the speed set on the camera has no effect on the strobe. Strobe operating range is governed by the guide number, which for two YS110's I calculate is about 30 out of water (approx 10 to 15 underwater). For ISO 100 and TTL mode set on the strobes, the calculated range will be approximately as follows:
Wide angle
Aperture Distance (max)
f2.5 4.0-6.0m
f9.1 1.1-1.6m
Full Zoom
f4.4 2.2-3.4m
f15.8 0.6-0.9m
Staying within these ranges of f stop and distance should be handled by the TTL system.
By the way, I now have two YS110alpha's. I met someone that had a single YS110 and wanted a second so I sold him mine and bougth the second YS110alpha.
Cheers
Treb