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View Camera

View Camera
View Camera
With a view camera what extension would be equal to Macro, 1:1?

"When the nodal point(optical center) of the lens is two times the focal length from the film plane, the reproduction ratio is 1:1."

Perfect explanation. Thank You!

Depends on the lens.

When the nodal point(optical center) of the lens is two times the focal length from the film plane, the reproduction ratio is 1:1.

For a normal lens(i.e. not telephoto or retrofocal), the nodal point should be close enough to the geometric center that you can be reasonably accurate by measuring from the lens board. That means that if you're using a 150mm lens, if the lens board is 300mm from the film plane, the reproduction ratio should be about 1:1.



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