In the last week or so there were two shoots that were typical examples of lighting on location.
For the University of Kent is was a magazine cover and poster image to be created at the end of a press call with ITV where I has about 20 minutes. It was raining so I found an undercover option but then at the last minute the sun came out. Editorial type pictures tend to require a bit more punch/contrast/ depth so I tends to use flash mixed with a slightly underexposed background. The wet weather / covered shots taken in an underpass required a Bowens 500 and portable battery pack to light a larger space. ISo 200 f11 @ 1/200, Canon 5diii (best of luck to Professor Sam Marcora as he travels a 13,000 mile trek from England to China as part of a research study with the University of Kent. http://www.itv.com/news/meridian/story/2013-04-27/motorcyclists-trek-for-research/).
For the National Trust the pictures were used by the BBC and Guardian to illustrate an exhibition of dresses owned by Vita Sackville-West and on a dull day at about 4pm I had a very dark room and a brief to create some atmosphere. The room in the tower is amazing but our eyes adjust for light in ways the cameras do not. 4 stops different from the window and everything else potentially in darkness. To keep the directional work of the window creating highlights from one side, I added to it a second window in the guise of an octabox with a 500w Bowens head, powered down so as not to blast light everywhere. ISO 1000, f/11 at 1/3 second and f4 @ 1/160; Canon 5diii. http://www.guardian.co.uk/books/2013/apr/29/sackville-west-lost-poem-lover-trefusis http://www.bbc.co.uk/news/uk-england-kent-22358641