- Put your flash in its manual mode.
- Set the power of your flash to 1/32nd.
- Put your flash about 8 feet away from subject
- Change your iso from its lowest setting to its highest setting and each time take a shot
- Change your aperture from its smallest aperture to its largest aperture and each time take a shot
- Do one at a time and see what the differences are
- Once you have a set up with aperture and /or iso that works for your needs, move the flash further and closer from your subject and learn how the narrower or broader light pattern effect the image.
- Also when it comes to placement try the same distance exercise but putting the light at 45 degree angles from the subject
- Hopefully by doing all of this with a consistent flash power, i.e. 1/32nd power you will start to get the feel for the relationship that the flash,aperture,iso and distance all have with one another.
- By doing this and varying the elements that control your light you will learn what settings to use and when.
I am using FlashQ, mini receivers and transmitters for firing my flashes. They are small, compact, accurate within 25 feet and just pop into a pocket when not needed. They are also coming out with their radio controlled flashes soon. The Q20.
I know that flash can be one of the most misunderstood creative tools because camera companies and flash manufacturers have done their best to not talk about all of the capability flash has. Just like camera companies stress programmed and pattern metering as opposed to aperture priority, shutter priority and manual they also stress ETTL (through the lens electronic flash metering)
Find out for yourself by doing this experiment. Have fun while you learn how to control the best available light you have.
Let me know how you do.