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Follow the steps below to adjust the relay back focus.
Steps Instructions Explanatory Notes
1 Leave the Iris on the camera lens fully
open and adjust the camera back focus
until you have achieved the sharpest
image.
2 Check that the film lens is at the best focus
before you check the back focus a second
time.
You will need a good quality monitor to
accurately judge the sharpness of the image.
By using a Putora 7A9 chart you will be able
to see the moiré effect of the test circles
visible through the relatively low definition of
the viewfinder.
3 Lock the back focus and double check the
image.
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