Promaster 2500PK Super - Page 12

To use Split-image Focusing, center the split-image prism on a main point of your
subject, e.g. nose, sleeve, etc. The image has two segments divided by the diagonal
line in the prism. To focus, turn the Focusing Ring (19) on your lens until the two
segments are aligned. When the segments are aligned, your image is in focus. When
the upper and lower half images are not aligned your lens is out of focus. Note that
sometimes the split-image prism will appear dark. Usually this occurs in low light
levels and is normal. To correct, move the camera slightly to change the vievvpoint
of your eye. If it still remains dark. there may not be enough light for the split-
image prism to work eorrectly so you will need to use the Micro-prism or Matte
Screen to focus.
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