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Overhead  Transparency  Projector
Actual Objects and Models

Journalist 1 & C - Advanced manual for Journalism and other reporting practices
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With  the  proper  overhead  projector  setup,  you  can face   your   audience,   point   to   the   items   on   the transparency rather than a screen, uncover one point at a  time,  and  highlight  information  with  colored transparency markers. Also, by writing notes on the overhead transparency frame, the speaker is not tied to a  script  or  index  cards.  All  transparencies  must  be mounted on cardboard frames to make sure they lie flat on the projector stage and block out excess light. The  overhead  transparency  projector,  like  the opaque projector, is noisy when the fan blower is on. Remember to increase your speaking volume when you are  operating  the  projector. Types  of  transparency  slides  that  may  be  used include  cellophane  or  plastic  sheets,  overlays,  cutouts, bar  graphs  and  animated  devices  that  are  constructed transparent  models  with  movable  parts. Although   many   different   models   of   overhead projectors are in use today, the operation of these devices is simple and generally the same. It involves nothing more than turning on the projection lamp, focusing the image and positioning the image on the screen. Proper  placement  of  the  projector  requires  the operator  to  consider  the  best  possible  arrangement  for each  situation.  Several  points  to  keep  in  mind  are  listed below. l l l Place the projector on a table or stand at such an angle that the projected image is a nearly perfect rectangle. Projectors not properly placed result in a keystoned image (discussed later). Make every effort to ensure that each member of the audience can see the image. Also, keep in mind, the farther you move the projector from the screen, the less intense the projected image is. Projected  images  should  be  viewed  without having to shift the eyes over too wide an area. Seating the audience at a distance no closer than twice the width of the image takes care of this requirement. Videotapes Careful  selection  of  videotapes  is  necessary  if  they are to complement your speaking situation. Make sure the  video  will  help  clarify  and  add  to  your  presentation. Preview the video. If it is right, select the important points that you want to highlight and emphasize when you  introduce  it. Plan the introduction of the video and the discussion following  the  video  around  key  points. Make a final check of the videotape and your tape deck  before  the  presentation.  To  assure  proper  tension while  playing,  fast  forward  and  rewind  the  tape. Properly adjust the monitor to suit your needs (color, hue, volume, etc.). A videotape can be shown on a large screen,   using   a   television   projector.   Television projectors are costly, but the quality of the projected picture is constantly improving. Introduce the tape by telling the audience what they can  learn  from  watching  it  and  suggest  the  important points to look for during the showing. Carousel  Slide  Projector The 35mm Carousel slide projector (fig. 6-7) is by far the most preferred visual aid of Navy speakers. Its Figure 6-7.-The Carousel slide projector. 6-23







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