NV-DS55EG, NV-DS55B, NV-DS55DEN, NV-DS55A - Panasonic Movie Service Manual (repair manual). Page 26

3. Attach the other end (lens side) of the collimator to the

filter mounting screw of the camcorder’s lens. If it does not
fit, use the step-up ring provided with the collimator.

4. Load the compact transmission chart (gray-scale/color

chart) in the chart holder and insert the chart holder into
the chart slot.

5. Connect the DC regulated power supply (DC 12 V ± 0.2 V,

approx. 1.7 A) to the Light Box using the provided DC cord
(red (+), black (–)) and turn on the power switch at the rear
of the Light Box.

6. While shooting the chart with the camcorder, adjust (using

fine control) the chart holder position as well as the height
of the Light Box and camcorder until the desired angle of
view is achieved.

Tightening the clipping knob fixes the rotary ring firmly.
When it is completely tightened, the collimator attached to
the rotary ring is at right angles to the emission face of the
Light Box or chart.    If the collimator cannot be attached to
the camcorder, try tightening the clipping knob to
compensate for shearing of the optical axis in the collimator.
On the other hand, if the collimator can be attached to the
camcorder, try loosening the clipping knob slightly to make a
little room around the clipping knob.

(Made by Triacetyl cellulose)

Camcorder adjustment requires a commercially-available a
color temperature conversion filter and a color compensation
filter. For all kinds of thin film filters, use the provided filter
mount.
To make a slip-in filter with the desired optical characteristics,
follow the procedures below.

To use a slip-in filter, insert it into the Light Box filter slot. It is
possible to insert 7 slip-in filters at a time into the filter slot.

1. Cut the desired optical filter to 50 mm x 50 mm.
2. Remove the seal at the rear of the filter mount, stick the

optical filter in the filter mount (over the hole), then fold the
filter mount in half.

3. It is recommended that you write the filter factor on the

filter mount.

Size: 

90 mm (W) x 197.5 mm (D) x 70 mm (H)

Weight: 

750 g

Power Supply: External DC regulated power supply

(DC 12 V    more than 2 A)

Lamp: 

20 W/DC 12 V halogen lamp
(Life: 2,000 hours)

Luminance: 

1,900 cd/m

2

 ± 100 cd/m

2

(center of the emission face)
(luminance conversion: 

≈

 5,900 lux)

Homogeneity: Within ± 10%
Color temperature:

3,100 K ± 100 K
(center of the emission face)

CIE chromaticity coordinate:

x = 0.430 ± 0.02
y = 0.400 ± 0.02

Internal filter:  LB 60 + M 50 (modified: 1.5 mm thickness)

Filter Mount

Thin-Film Filter

(50 mm X 50 mm)

Adhesive Face