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Spacing Test article
Now that we have wound on to frame number 1 on the counter with the
lense off press the shutter button.
This is what you should see.
The pinky plastic is the unprocessed negative.
This is where we will mark a line to show the the edge of the exposed
frame.
With the marker pen or pencil ,,mark this edge as shown and put in the
frame number.
Don't forget to do the other side as well.
When both sides are done ,release the shutter and wind on to frame 2.

Here frame 2 is done and the right side margin is also shown here.
Keep repeating this until the whole roll is done.