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KODAK EKTAGRAPHIC III Slide Projectors
Operating Manual

Choosing a Curved-
or Flat-Field Lens

The lens you select depends on how you use your projector and what type of slide mount you use. So that you may choose the lens that best meets your needs, we do not include a lens with the projector.

To obtain the best results of a projected image, insert slides with the emulsion side toward the projection lens, slide curve toward the light source.

A flat-field lens works best for:

  • general home projection
  • glass mounts
  • plastic mounts
  • mixed mounts
  • non-embossed cardboard mounts
  • rear-projection applications
  • duplicated slides

A curved-field lens works best for:

  • embossed cardboard mounts (Embossed mounts have beveled edges around the aperture. Kodak Premium Processing and Kodak Processing labs provide embossed mounts.)

Lens Focal Length/
Projector Distance

Use the illustration to help determine the lens focal length and projector distance.



L D
75 mm 13.3'
100 mm 17.7'
125 mm 22.2'
150 mm 26.6'
175 mm 31.0'
200 mm 35.4'

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Operating Manual Contents

| Important Safety Instructions | Overview | Introduction & Operation/Startup | Slide Tray | Projecting Your Slides | Editing Your Presentations | Clearing a Gate Jam | Using the Built-In Viewer | Using a Disolve Control | Shutdown | Maintenance | Changing the Projection Lamp | Cleaning the Condenser, Heat-Absorbing Glass, and Mirror | Troubleshooting | Warranty | How to Obtain Service | Special-Application Receptacle Identification Chart