Slide Moisture Problems
Areas of High Humidity
Simple Solutions
In room environments with high humidity, the use of a high powered Xenon slide projector or modified halogen lamps may cause the moisture that is trapped in your glass slides to appear as a moving spot during your presentation.
As the glass slide heats up, the moisture trapped inside will move as a spot until it disappears totally. The moisture spot is on the inside glass surface facing the light of the projector. The moisture will completely disappear during your presentation.
Once you understand the cause of the moisture problem, there are some very simple solutions to prevent it.
1.Keep your slides in a
2.Use cardboard or plastic mounts when humidity is high.
3.Use new Wess Mount AHX high definition glassless slide mounts. Free samples were enclosed with your Navitar Xenon projector. For more information on AHX glassless slide mounts, call Wess Plastic, Inc. at
According to Wess Plastic, Inc., their AHX glassless slide mount is geared to hold the film in place for the best possible image sharp ness. Two rows of eight registration pegs rigidly stretch the film to prevent “popping” as the slide is heated in the projector. Film is mounted by first placing it over the lower row of pegs, and then hooking it over the upper row. It is then pulled tight and automati cally seated by simply closing and squeezing the hinged mount cover. Rigidity is also aided by the 3mm thick
4.Your problems with moisture will decrease when the outside humid ity goes down.
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