Originally posted by 10speeduk Dear all, I am trying to achieve a portrait effect with my flash where the subject looks like they are in complete darkness, with only a partially lit face. I was under the impression that this is achieved by shooting flash directly at the face, then using a fast shutter speed to cancel out the ambient light, so showing the face in the dark. I can't seem to achieve this at 180th of a second despite playing around with my flash power settings.
Please enlighten me!!!!!!
Thanks
Paul
This is going to depend on what the ambient light is like as well as the environment you are in.
If you are outdoors in bright sun, 1/180 doesn't over power the ambient, you have to use the aperture for that which kills flash power. Additionally, you will want a snoot of 1/8th grid on the flash to ensure that it is only hitting the face. Otherwise the spread on the flash will be too wide and will hit everything that your lens can see.
If you are indoors, the flash might be bouncing off the walls and filling in the shadows too much, which could be perceived as not overpowering the ambient. Again, you will want a snoot or grid to precisely direct the flash beam. You might need black cards to stop the spill too.