----- Original Message ----- From: Caveman Subject: Re: Velvia was Re: Exposure
> > Simple. Follow the ISO standardized method of determining the film ISO > rating. The ISO standardized method is the first thing that is abandoned by advanced photographers. This is why people do film speed tests. The ISO standard presumes a certain scene type which bears only passing relevence to the real world. The ISO rating is just a reference standard so that everyone can be on the same page WRT film and meter sensitivity. There is nothing in the ISO rating to imply that it is the gospel for how the product will work in the real world. William Robb