Wizard Of Oz -Look of Film

Film looks different from digital, but a lot of old movies are being remastered and updated to an HD looking format. To show the rapid changing of film look at The Wizard of Oz. You may be familiar with the 1939 film (the one that had sound and Technicolor), but just fourteen years earlier there was a 1925 a silent black and white film.


 Here is a link to the full movie. Wizard of Oz 1925 film

Things to note.

Film Stock

The "negative formate" is about film stock. Negative format is the method of getting the negative image into a positive image. A negative is when the area most exposed to light comes out the darkest and the area least exposed to light is light. In more detail, provided by Ascher in his Filmmaker's Hand Book, there are silver halide crystals and metallic silver. The silver halide is what responds to the light and what will create the latent image. After the film goes through the developer the silver halide becomes metallic silver. In negative format the negative image is reverted back into a positive image.

Image of a negative

Film Speed

The speed of the film actual has to do with how much light is needed to make a latent image. A faster speed requires less lighting and allows the camera to shoot in more locations. But this can lessen the quality of the film. With black and white film it's necessary to take a measurement of light exposure overexposure and underexposure.

mendosa.com

gtbarnes.com

publicphoto.org

Photos to the Right are underexposed. Photos to the left are overexposed.

kenrockwell.com

Frame Rates

How many frames are recorded in a second. The frames are the little images you would see on a film reel. When motion on screen looks speed up, as you may have seen in the Wizard of Oz, that's because the film was shot at faster speed, but projected at the standard 24 fps. The standard rate of film is 24 frames per second.