Guy Glorieux <guy.glorieux@sympatico.ca> writes: > Then > dd-b said: > >Studio flash will probably be necessary to get enough light. > > > > Dave, with pinhole, you operate in the aperture ranges of F/120 and > above, far above the traditional range of F/8 - /22 for lens cameras. Yes, I know. Well, up through at least f64 is pretty common for large format. > Moving from one scale to the next means usually quite a number of > F/stops, which in terms of number of flash bursts will go like this: 2, > 4, 8, 16, 32, 64, 128, ... By the time you have covered all the light > requirements, the flash heads glow in the dark... I do know that an f-stop change represents a doubling of the light. However, putting 3 1600 watt-second heads about a foot away from the subject will result in amounts of light far in excess of, for example, sunlight. -- David Dyer-Bennet, <dd-b@dd-b.net>, <www.dd-b.net/dd-b/> RKBA: <noguns-nomoney.com> <www.dd-b.net/carry/> Photos: <dd-b.lighthunters.net> Snapshots: <www.dd-b.net/dd-b/SnapshotAlbum/> Dragaera mailing lists: <dragaera.info/>
