Scenario:
After metering a scene based on ISO 100 film and placing the shadows on Zone 3, I then expose the image.
After making the exposure, I realise that the film used was actually 400 ISO film.
Question:
Would the shadows now be on Zone 5 ?
Scenario:
After metering a scene based on ISO 100 film and placing the shadows on Zone 3, I then expose the image.
After making the exposure, I realise that the film used was actually 400 ISO film.
Question:
Would the shadows now be on Zone 5 ?
If you metered for ISO 100 and shot on ISO 400 film you OVEREXPOSED by two stops. I take it this is black and white, right? If so, you're probably ok. Who knows, you might have exposed like Edward Weston.
Yep, you overexposed two stops and your Zone III placement is now Zone V. Don't worry, most modern black-and-white (and even color negative) films will hold highlight detail with even more than two-stops overexposure. Just develop normally and print longer. You may be surprised at the great shadow detail you have.
Doremus
They would be, yes. Two stops over exposure. You could try developing one stop less. You could go two stops less if you have sufficient development time available. Else you risk streaking.
But IMHE developing one stop less is almost always sufficient. You'll just get better shadow detail because of the over exposure, and you'll have a little more graininess because of the over density on the film in the highlights. No biggie.
Bruce Watson
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