Table of Contents
Advertisement
Section 3
C
3-2
Another method of focussing is to use the focus chart, which is at the back of
this manual. The picture contains three charts laid one on top of the other with
the smallest chart in the middle of the picture. These charts are marked for
focussing the camera for work in 1" (25mm), 2" (50mm) and 4" (100mm)
pipework. To use this chart follow these instructions:
Release enough Flexirod from the unit so that is easy to hold the camera above
the chart in the back of this manual. Rotate the camera until the red lettering is at
the top right of the screen as shown in the pictures to the left here.
Never allow the lens to become proud of the body or overtighten, either
extreme may damage the lens and camera.
P374 System User Manual
If you wish to inspect 4" (100mm)
pipework, move the camera until all three
charts are visible, one inside the other as
shown in the top picture. Now adjust the
focus until the chart is in sharp focus, try
moving the camera slightly upward and
downward to check that the focus is at its
sharpest point. The camera is now ready for
inspecting 4" (100mm) pipework.
If you wish to inspect 2" (50mm) pipework,
move the camera until two charts are visible,
one inside the other as shown in the middle
picture. Now adjust the focus until the chart
is in sharp focus, try moving the camera
slightly upward and downward to check that
the focus is at its sharpest point. The camera
is now ready for inspecting 2" (50mm)
pipework.
If you wish to inspect 1" (25mm) pipework,
move the camera until the single central chart
is visible as shown in the lower picture. Now
adjust the focus until the chart is in sharp
focus, try moving the camera slightly upward
and downward to check that the focus is at
its sharpest point. The camera is now ready
for inspecting 1" (25mm) pipework.
© Pearpoint Ltd
Advertisement
Table of Contents
