Kodak 35 mm Slide Viewer Unboxing and First Impressions with Amazing 3D Slide-Viewing Experience

I've never have a similar 3D experience with slide film viewing. It is a totally different and vastly superior experience than scanned or printed flat 2D photo representation. I don't know what is this optical, sensical trick which was applied in this Kodak slide viewer device. I don't know, if this kind of device was available with this 3D viewing-feature in the golden ages of slide film photography.

[@rudolfo963]

The 3D effect you and others see is because there are three color emulsions on the film. The layers are stacked with yellow on the bottom, cyan on top of that with a top layer of red. Especially when the slide is magnified in a viewer of this kind, you will perceive the different depths of these layers. It's very noticeable with a red flower seeming to pop from the image compared to the plant's greenery surrounding it.

[@abhiksikdar586]

Also seen this 3d effect

[@MilledSteel]

How do 35mm negatives look on it?