Originally Posted by
Jim Jones
Maybe. It depends on what lens the shutter was originally intended for. If the original lens was about 90mm, the scale may read correctly from f/8 up. To check this, set the scale to an indicated f/8 and measure the apparent diameter of the aperture while looking through the front of the lens from a distance. It should be about 11.25mm. If not, you can either use the existing scale and correct for the error, or make a new scale. Changing the scale did not change the maximum aperture of the lens. If the shutter is not original, there is a possibility that the spacing between front and rear lens cells or between the cells and the aperture is incorrect. This will affect lens performance.
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