On 31 May 2013 08:46, Bob W <[email protected]> wrote: > > 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.
Excellent basic "how to" Bob -- Rob Studdert (Digital Image Studio) Tel: +61-418-166-870 UTC +10 Hours Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio -- 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.
