I actually wanted to know how r these numbers made... What is represented by it...
2007-08-21 21:41:19 · 4 answers · asked by Artin 3 in Arts & Humanities ➔ Visual Arts ➔ Photography
In terms of the naming system what do 35mm, 120mm, and 70mm refer to, or at least who came up with these numbers? Well first of all the figures you gave me are a mix of film width as well as Kodak film nomenclature whereas 35 and 70mm refer to film width whereas 120 refers to Kodaks film naming system and not width, length or size of image.
Kodak as you may know introduced most of the popular film formats available today. Their naming system of 1xx began in 1913 for both their existing film as well as future films. For example 35mm film is refered to by kodak as 135 film. However most photographers refer to the film as 35mm because it is 35mm wide, however dont think that the 35 in 135 represents mm because for that matter 120 film is not 20mm wide.
In addition to 135, Kodak also introduced 6cm wide film in 1901 and was later given the designation 120 film based on their naming structure introduced in 1913. A longer film 6cm wide film was introduced later and given the designation of 220.
70mm film is unlike the previous mentioned films as it was primarily used as a premium film format used in cinematography and is 70mm wide, with an image slightly smaller than 70mm wide. Kodak has had various designations of 70mm including the 116 designation
I should note that although 70mm is primarily used in motion picture cameras, some film cameras, such as the Hasselblad do in fact have film backs that will utilize this film format.
2007-08-21 23:39:11 · answer #1 · answered by wackywallwalker 5 · 4⤊ 0⤋
The 35 120 70mm are the image size on the negs. It corresponds with the film size. The 70mm is an adaptation of the 120 made in the camera. It uses two 120 frames to make a wide angle image. You have to have the right camera for that. Mm means millimeter.
2007-08-23 08:01:56 · answer #2 · answered by Anonymous · 0⤊ 1⤋
35mm film is the original movie film and got its name because it is 35mm wide. Todays 35mm film for still cameras is the same size although its true designation is 135. Image size is 24mm x 36mm
120 is also a designation and the film is commonly referred to in still photography as medium format film. It is roll film with no perforations and is nominally 56mm wide. There are many cameras that use this film and take different size images, commonly referred to as 6x6 or 6x9 etc.
70mm film is a special movie film that is 65 mm wide.
wikipedia has some very good information about all the different film sizes - since there are many.
2007-08-21 22:26:42 · answer #3 · answered by vbmica 7 · 4⤊ 0⤋
mm is millimeters, a standard measurement in the meteric system
300mm = 1 foot
25mm = 1 inch
35mm is a format for both still and moving pictures
70mm is prodominately for moving pictures - what movies are projected off
120 is for still images
as far as they measure from corner to corner or what not someone else can answer that
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2007-08-21 21:57:49 · answer #4 · answered by Antoni 7 · 0⤊ 0⤋