Quote Originally Posted by holmburgers View Post
Haven't read all the replies, but indeed, if you're inside the camera, set the aperture to f/1.0, which is equivalent to telling the meter there is no aperture. With a known ISO, the shutter speed will tell you the right time for exposure.

An oft misunderstood concept. In theory, the same technique (using f/1) would work under an enlarger too.

I don't think f/1.0 is equivalent to having no aperture. If that were the case, apertures larger than f/1.0 would be impossible, yet there are lenses faster than f1 and they certainly do not magnify light.

Personally, I'd do it with a meter that can read in lux and do a couple sheets of test strips. That's the simplest way you can calibrate your knowledge without doing anything that might confuse the issue.