Data Sheet

39
DP3
To teach lighting for virtual studios, a slide
projection can be a wonderful tool. In the same
view for the eye, as well as the camera, the
projected background image appears at the
same time as you can see the setting of the
lighting on the talent. Trying to match the lighting
on the talent with the character of the lighting
in the background is often easily achieved,
sometimes aided by the addition of color
effect filters.
For the aspiring media student this can be a
great learning experience, also for choosing
suitable light sources to make the lighting on
the talent melt in a natural way into the virtual
background (Visibly projected background),
and still separate the talent by lighting from the
background.
FELLONI as fill light
with Grid
FELLONI
with warm
colored gel
Distorted slide for 30° or 45° projectionNo distortion
For the projections of 45° or 30° angle we
usually distort the slides in the computer before
printing them, and then they will distort on the
background onto which the slides are projected
so that parallel horizontal description can be
maintained. Such slide projections can be used
as an easy background projection without the
hazards of disturbing reflections from green or
blue backgrounds. This may occur when there
is not enough space between the talent and the
green or blue background.
When you are projecting onto a background,
you will not want to see this projection on a
person in front of the projected background.
Therefore you will place the projector 30 de-
gree (or 45 degree) away from camera axis.
With our slide projections, we can adjust the
image plane (in 2 axis) and control focus even
for projection from an angle.
Which slide formats to use for classic dedolight
But we will create key stoning – the projected
image will appear distorted.
To compensate key stoning / distortion when
projecting from an angle, we pre-distort the
images in the adverse direction (in Photoshop).
Then the projected image will be displayed
without distortion.
Today many backgrounds are created with
green screen technology – slide projections oc-
casionally offer an interesting alternative. Even
if in the end you will use green screen, the slide
projection offers a perfect and direct exercise
for matching the lighting on the talent with the
character of light in the background.
DP3
A complete unit for the classic dedolights
DLH4, DLHM4-300, DLH200DT (see page 38)
for use with modified 35 mm slide frames (free
window 35 mm wide, 32 mm high).
Order code: DPSFD
For projection with 85 mm lens from 30 degree
angle, distort top and bottom with 3.4 degree
(image height will be 32 and 25.5 mm left/
right)
DP400SHA
Module for our larger DP400 imager/projector
(see page 38). Uses regular slide frames
2 ¼ x 2 ¼ (60 x 60 mm).
Order code: DP400SF
Our slide projectors come in 2 versions.
For projection with 150 mm lens from 30
degree angle, distort top and bottom by 5.7
degree, resulting in image height 60 and 48
mm (left/right)
Our service for slide production
with your own images
Using your own images – depending on the
application – you may want to make sure that
you are in possession of the rights to these
images. Transmit the images to us and we can
take care of suitable pre-distortion, developing
and framing.
Order code: DPSCD (for DP3)
Order code: DP400SCD (for DP400SHA)
It is best to use slide frames with no protective
glasses.
It may be advisable to have several duplicates
made, if you want to use the same slide image
for a longer period.