b) Decentering system: Horizontal decentering allows more accurate framing of the transparency or slide to be filmed. To adjust, undo the decentering screw and push the slide hotder to the left or to the right; tighten the screw again when the desired framing has been achieved. For vertical decentering, push the slide upwards or downwards in the slide-holder grooves. (53)
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Chief uses a) Reproducing transparencies and slides: This is the "most common use. Merely place the 24 x 36 mm, 24 x 24 mm, or 40 X 40 mm slide into the macro-stage's slide holder. (54) 54
b) Filming insects, etc.: When the object to be filmed (butterflies, moths, flies, or small fish, etc.) is placed in the specimen-box, place the box between its retaining ring and the slide holder (using the two retaining screws). (55)
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