Technical information
12
After the lens focus ring is set to infinity (FIG 17), the display indicates the first of ten
calibration distances. There are two versions of this display screen, one for lenses with
linear focus mechanisms, and a second for lenses with non-linear focus. Choosing a lens
type automatically brings up the corresponding display screen.
The display screen for lenses with linear focus mechanisms allow the user to scroll up
and down with the Nav key (FIG 6.15, and 6.16).
The display screens for non-linear lenses show fixed distances for each calibration point
as shown in Fig. 6.18 – 6.20.
After the tenth point is entered (Fig. 6.17, 6.20), the lens description is shown to the right
of the Lens entry of the Menu (Fig. 6.21). The letter “c” to the right of the lens description
indicates that the lens has been calibrated. The main screen (Fig. 6.22) shows the lens
information.
To select the focus ring, Menu (Fig 6.22) Ring (FIG 6.21) and use the Navigation key
to select either a ring (A – E) for metric or (Ai – Ei for imperial) (Fig. 6.23. The tables
below show the near focus distances for both the rings calibrated in imperial and metric
units.
Ring Ai Bi Ci Di Ei
Near Focus 9” 18” 24” 36” 72”
Ring
A
B
C
D
E
Near Focus .25m .50m .70m 1.0m 3.0m
Fig 6.15 Fig 6.16 Fig 6.17
Fig 6.18 Fig 6.19 Fig 6.20
Fig. 6.21 Fig. 6.22 Fig. 6.23