http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=000eWN
Thought this might help clarify things (or not <LOL>) Shel > [Original Message] > From: Shel Belinkoff > I ~highly~ recommend the Kodak grey cards over all others. Read the > instructions. Properly using a grey card is not always as simple as just > taking a meter reading off the card and translating it to the camera. > There's also the issue of whether a true middle grey is 18% reflectance or > 13% reflectance. I believe that Kodak suggests 13% reflectance ... but > don't quote me ;-)) For best results - i.e., for critical work, calibrate > the card to the meter and then calibrate the processing. > > One very nice feature of the Kodak package is that it includes one or two > 4x5 cards, a perfect size for carrying about in a photo bag or even in your > pocket. There's also a little plastic pouch for the smaller cards which > protects them from dirt and abrasion. The cards are made very well compared > to other cards I've seen, and the grey tone is remarkably consistent from > batch to batch. I've seen other grey cards with the grey tones all over > the place. > > > > Shel > > > > [Original Message] > > From: William Robb > >> Put a gray card beside the flower, meter it, and shoot pictures > > without compensation...... > > > > You may still need to make minor adjustments based on individual > > scenes, but a gray card beside the subject should put you really > > close to the right exposure. > > The nice thing about a gray card is it obviates any colour shifts that > > the meter might be prone to. >
