| Advantages of
Slide Projectors |
- Continuous tone color images are reasonably-priced
- Many kinds of materials can be copied or captured
- Copy stand
- Photography
- Flatbed color scanner
- Slide scanner
- Video frame capture
- Audience perceives slides as "more professional"
than overheads
- Slides can be used to focus attention
- Slide on screen to focus attention on visual
- Blank or black slide to focus attention on speaker
- Slides and projectors easy to store and transport
- Overlays can be used to simplify complex information
|
| Disadvantages
of Slide Projectors |
- No face to face contact with audience since room usually
darkened
- Projector at back of room away from speaker
- Not effective in a fully-lighted room
- No ability to modify slides and sequence during
presentations
- Longer lead time (2 to 5 days) for preparation of slides
|
| Presentation
Techniques for Slide Projectors |
- Use of blank slides to focus attention
- Focus attention on visual
- Blank to focus attention on speaker
- Progressive disclosure
- Reveal one point at a time
- Add to lists on screen
- Use of dissolve unit and two slide projectors to fade slides in and
out
- Link to audio track with cue tape
|
| Slide Projection
Survival Kit |
Below are a few essential items that may
make the difference between
a successful and unsuccessful presentation using slide projection. These
are especially important if you will be presenting in a room without
access
to audio-visual support services.
- Extension Cord - Rooms sometimes have the power
outlets
located in the most inconvenient locations. An extension cord may
resolve
such difficulties.
- Ungrounded Plug Adapter - Some rooms do not have
three-prong
grounded outlets. A two-prong adapter will allow you to use these older
power outlets without damaging the overhead projector plug.
- Spare Bulb - A spare bulb is always good
insurance.
Make sure you know how to change the bulb in case it burns out
during
your presentation. Do not touch the glass surface of bulbs with your
fingers,
but handle bulbs by their metal or porcelain bases.
- Coin - Slides sometimes warp or get stuck in the
projector.
The only way to resolve this is to take the tray off using a screw
driver
or a coin in the slot in the middle of the tray. Be sure however,
that
the plastic lock ring is on your tray before you remove the tray to
prevent
dumping slides on the floor.
- Spare Slide Tray - Sometimes a tray will become
damaged
on the projector. The solution is to move the slides to an undamaged
tray.
- Numbered Slides - Numbering your slides in the
upper
right hand corner will provide assurance that you can put the slides
back
in the tray in order if they spill out or get stuck.
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