If I had the old-fashion camera that had a focal length of 35mm(0.035m) and I take a picture of a person 6 feet away, how far does the film need to be from the lens to record a clear image?
I know that the equation is 1/f = 1/d(object) + 1/d(image) so would I do the following:
1/0.035m = 1/6 +1/unknown and then solve, yes or no?
It should read 6m not 6 feet as the distance of the object
Thank you