Quote Originally Posted by baachitraka View Post
@Mark: True, it does not know anything about the tonal range. It only measure the light falling on the subject.

If I take the incident reading(dome pointing to camera) on a shade, will it render as middle gray on print?
Only on a transparency.

With negative it's all relative, there is no specific point that can be defined as the absolute middle gray point. This is because print exposure is set in the enlarger, and in the enlarger you can place any tone you please from the film at middle gray on the paper.

Proper metering allows you to set the camera in a way that allows you to get good shadow and highlight detail around middle gray. It gives you a reference point to make your work easier.

If for example you used TMY which has a 14 stop range you could pick an EI that might put your intended middle gray 7 stops above the film's toe. 1 or 7 stops to the toe, it's your choice.