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FOCUS:
Both back and front focus are crucial to a shoot. This is why it is very important to be dead on
with both. When shooting green screens, the focus seems to be a little soft in a wide shot. This
is just the optics in the lens and the only thing that can be done to fix this is to add a touch of de-
tail. Remember that reading a clark scene file will add a kiss
of detail automatically (refer to paint settings on pages 4-5).
Whether or not to use detail will need to be discussed with the
client, DP or preferably the editor.
The best way to check your back focus is by using you scope....
1) Check Front focus as usual
2) Pull out wide and select your WFM on the leader
scope. Turn on LINE SELECT. Place your
line on the edge of the chart like this...
3) Open Iris to full wide and turn on shutter. Adjust shutter
until properly exposed.
4) Once you've placed your line, select WFM. Here, you
will see the peaks of the chart....
5) Next, you want to magnify this in order to see the definition
between the white and black.
6) Tweak your back focus until the peaks look like this.
7) Check back focus at least twice a day (especially in
climate change).
8) Also remember that VF peaking is a useful tool with focus.
NOT LIKE THIS!!!!
C l a r k M e d i a 6 1 0 . 6 9 4 . 9 8 0 0!
LIKE THIS!!!!!!
16
P a n a s o n i c Va r i c a m
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