Beef Cheek: This shot was taken with a 4x5 View camera. The subject was about 4 inches from the lens, with bellows length at about 16.5 inches, which equated to an X factor of 17X. Therefore, according to the chart, I needed to add +4 Stops of light. I spot metered the white spikes @ f/22 for 1/60 seconds and added 4 stops of light to get the white at Zone V (18% gray) I added the +4 Stops to make the final shot f/22 @ 1/8 second.