How To Make Slides with the Dunn 35mm Camera Filed in [Indigo]Documentation>HowToMakeSlides.Tioga Draft in [Indigo]Documentation>HowToMakeSlides.Tioga Created by Rick Beach, August 1, 1983 Abstract: The Dunn film recorder in ISL is available to make 35 mm slides for technical presentations. The quality of images presented on the 1000-line color monitors in ISL is such that 35 mm slides appear impressive even to large audiences such as SIGGRAPH. You should be encouraged by these initial results. This slide making package is an attempt to make our modest efforts easier. 1. The choice of slide film The Dunn film recorder has two cameras: a 35 mm camera for slides (or prints if you wish) and a 16 mm animation movie camera. The following discussion applies to slides and to color slides in particular. Exposure settings within the Dunn film recorder compensate for the different film speeds and characteristics. Note that at present, no color calibrations have been made therefore expect only representative colors and not precicely accurate colors. Note that the cost of copying a single slide after the fact is about 1/4 the cost of purchasing and developing a whole roll of 36 exposures. It is easier to make duplicates from the original screen image than regenerating the display some days later. Having a library of extra slides expedites creating new slide shows. Friends and neighbors often like copies of your best slides. And finally, sometime, somewhere, your favorite slide will get scratched. MORAL: make several copies, at least 2, EVERY TIME you make a slide. Slides can be exposed on both Polaroid instant slide film or standard Kodak films. The Polaroid films are truly instant and dry. Although, the Polaroid emulsion is more grainy and much more fragile than the Kodak films and you must mount your slides by hand. Polaroid film comes in 36 exposure rolls and you must develop a whole roll. There are smaller rolls of 12 exposures, but the cost is only 33% less than for 36 exposures so use the larger rolls. Its handy to use Polaroid slide film when you are close to a deadline to ensure that you have at least one set of slides to take. But we prefer Ektrachrome because of the graininess. Ektachrome can be processed in a small number of hours or overnight in the bay area (Custom Color Labs, 947 Industrial, Palo Alto, or Peninsula Photographic, San Mateo). Ektachrome tends to be somewhat bluer in color, but has a firm emulsion and stable colors. Its the film of choice in ISL at present. Kodachrome has wonderful color, is very fine-grained and stable, but must be processed overnight at the Kodak lab on Page Mill Road, Palo Alto. Thus rapid turnaround is possible for Kodak film with a bit of running around. 2. Aesthetics for making slides For large audiences in dark halls, light detail on a dark background works best. This concentrates the audience's attention on your slides rather than overwhelming them with bright light. A dark blue background with white text lettering satisfies this intent, although you may prefer more creative colors. Choose with caution. Text slides generated by this package also have black drop shadows to further define the letter shapes when projected. Times Roman is the only display font available in sufficiently large sizes: 36 point, 30 point, and 24 point. For really big audiences, stick with the two largest sizes, 36 and 30 point. If you have the luxury of a small audience in a long room, then the 24 point size is readable. At these larger sizes, the serif typeface is quite professional in appearance. The more modern and fadish sans-serif Helvetica is available only at 24 point, sigh. . . And as an added corporate touch, a Xerox logo can be added to each slide in the bottom left corner. Remember this if you plan to give away any slides. Can you give away slides without corporate approval? 3. Set up the Cedar world To begin, you must be running on a Dorado with a color board. The color monitor must be a 1000-line monitor and it must be daisy-chained to the Dunn camera. At the time of writing the Dunn camera is connected to Essex in room 2344. The 1000-line restriction is due to the calibration of the Dunn camera to suit a 1000-line monitor. The position of the Dunn camera is dependent on the daisy chain of the red, green, blue and synch cables from a Dorado color board. This slide-making package runs through JaMGraphics. Thus the following commands to the Executive are necessary to establish the Cedar world for making slides: run ColorTest to run a version of the color device that works with the 1000-line color monitor. This will go away sometime. run MonitorTool Left-click Calculate Left-click Set to start the 1000-line color monitor and color viewers. This too might go away when the 1000-line monitors are more common place. For now, accept the fact that you pay a price to be special. run TJaMGraphicsPackage JaMGraphics Left-click Color in the JaMGraphics viewer to move it to the color display. At this point, you will have a white JaMGraphics viewer on the color display. For aesthetic reasons you would prefer to eliminate the viewer header. The following interpreter commands eliminate the header. To the Executive, issue the following three commands to paint blue over the JaMGraphics header _ &dc _ ColorWorld.NewContext[] _ &dc.procs.SetColor[&dc, GraphicsColor.blue] _ &dc.procs.DrawBox[&dc, [0, 725, 1024, 768]] This arranges that the header is painted with color map entry 2. That color map entry is the one which is later changed by the slide package to be a background blue (slightly darker). 4. Start the JaM world In the JaM typescript, load the slide-making package and try out a couple of slides. (DunnSlides.JaM).run sampleSlide to check out the slide-making stuff by producing a vanila text slide. PARCLogo which draws the PARC logo on a brown background. After its finished, typing setup will change the background to blue, if you prefer. 5. Designing illustration slides The slides for the Graphical Style paper presented at SIGGRAPH 83 are copied into SampleSlides.JaM for your edification. There is a sequence of text slides named titleSlide, slide1, slide2, . . . slide16. Then there are a few illustrations that utilize JaMGraphics. To make your own illustrations, the best strategy at present is to make JaM scripts. Griffin illustrations can be converted into JaM scripts somehow. The layout of illustration slides remains a manual design process. Creative use of .touch == to display positions helps. Help is on its way just don't hold your breath. 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