On 30 May 2013, at 18:53, Walt <[email protected]> wrote: > So, I was wondering where I might be able to learn more about shooting manual > flash in the event the TTL function fails me -- something to give me an idea > of when to adjust the flash output power, at what distances, etc. I know > nothing about guide numbers, flash modes, or anything like that. > > Anybody got any suggestions to that end? Any guidance would be appreciated.
The guide number tells you how powerful the flash. It's of no real consequence in practical shooting. To use flash manually, 0. Set the flash to manual 1. Set the ISO value on the scale on the flash 2. set the shutter speed to the flash sync speed, or lower 3. Measure the flash to subject distance - you should be able read this off the focus scale, but if you're bouncing the flash use the distance from the flash to the point on the ceiling, and double it. 4. On the flash scale, read off the correct aperture for the flash-subject distance 5. Set that aperture on your camera 6. Focus and shoot You can vary the flash output, eg for fill flash, by lying to it about the ISO. Setting the shutter speed slower than the flash sync speed gives you a bit of ambient light and some motion blur against the flash-frozen bit. B -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
