If you have a specific question, please don't be shy. Post it here as comment. If I don't answer it here, I will try to answer it on the DPE podcast that I do with Juan Pons (who, in addition to being a wonderful photographer, knows a ton about computers, iPads and iPhones - not to mention shooting HD videos with an SLR.
Tech info:
Canon 5D Mark II
Canon 24-105mm IS lens
Canon ST-E2 wireless transmitter
Westcott diffusers and stands
And . . . that's me holding a Westcott reflector, which is acting as a fill light.
Explore the light,
Rick
P.S. That's Vered Koshlano on the left in the opening photograph for this post. See more of Vered's work on her site. Vered is the co-author/photographer of my book, Studio and Location Lighting Secrets. Hey, like the cover shot of the book? My friend, fellow Canon Explore of Light and expert remote control helicopter flyer Eddie Tapp made that wonderful image.