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J. The ND Filter System
J1. The Electronicaly Controlled Variable ND filter
The PXW-FX9 has an advanced electronically controlled
variable ND filter system. When the filter system is set to
the clear position there is no additional filtration in the
optical path. When you set the ND filter to ON, the neutral
density filter system is introduced into the camera’s optical
system ahead of the sensor and allows you to reduce the
amount of light that reaches the sensor.
When the ND filter mode switch is set to preset the ND
filter provides 3 preset levels of ND filtration. The default
values are: 1 = 1/4ND (2 stops), 2 = 1/16ND (4 stops) and 3
= 1/64ND (6 stops). However, if you wish you can change
these preset ND levels in the menu
(MENU: shooting - ND
Filter)
.
Switching the ND filter switch to Variable allows you to use
the ND Variable wheel to vary the amount of ND filtration
smoothly and seamlessly from 1/4ND (2 stops) to 1/128ND
(7 stops). The variable ND function allows you to use the
iris (aperture) you desire for the best depth of field or lens
performance and then finely control the exposure via the
variable ND filter.
