135 What does "135" mean for a camera?

A camera using 135 film is called a 135 camera or a 35mm camera.

A camera with an imaging area of 36.24 mm is also called "Quan Huafu 135 camera", and a digital SLR camera with the same or similar film size as 135 is called "Quan Huafu Digital Camera". A camera with an imaging area of 24 18mm is called a "half-grid 135 camera", while a camera with an imaging range greater than 36mm is usually called a "wide-format camera", such as Hasselblad XPAN.

A camera that uses 120 film is called a 120 camera. Cameras that specialize in 220 film are rare now. Most of them use 220 film by replacing the back of 220 film on 120 camera. The following photos were taken with a wide-format camera:

For 120 cameras, there is a similar saying of "wide", such as 6 12 and 6 17 cameras, all of which belong to wide. Comparison of frame dimensions between 135 and 120.

135 film: because its width is 35mm, it is also called "35mm film", and it is packed by cassette. 120 film: the width is 6 1.5mm, without cassette packaging, but with backing paper; 220 film: the width is 6 1.5mm, and the length is twice that of 120 film. There is no backing paper, but there are protective papers at the beginning and end.

Frame detailed specification table

Actual area comparison table

The standard imaging area of 135 film is 36.24 mm, and the length unit is mm; 120/220 film has various nominal imaging areas: 6 4.5, 6 6, 6 7, 6 8 and 6 9cm in length.

The imaging area is square or rectangular. In addition to the side length, there is also an important indicator, which is the diagonal length.

Quan Huafu digital single-lens reflex camera is a digital single-lens reflex camera (DSLR) equipped with a full-size (36 x 24 mm) image sensor close to the traditional 35mm film. The emphasized Quan Huafu is a classification method based on comparing these models with smaller sensors (usually APS-C specifications).

In 2007, most digital SLR cameras used sensors smaller than 35mm-because smaller sensors are cheaper and easier to operate.

In the second half of 2008, several digital SLR manufacturers such as Canon, Nikon and Sony all launched their own high-end digital SLR cameras with 135 format and Quan Huafu size. This announced that 135 Quan Huafu will soon be popularized in the digital SLR market.

In a 35 mm( 135 film) camera, Quan Huafu and half frame are used to distinguish 24 x 36 mm and 18 x 24 mm. In film, half frame is also called single frame, and Quan Huafu is naturally called double frame.

fold

135 camera refers to a camera using 35mm film.

The film width is 24*36 mm and the perforation height is 35 mm, so it is called 35 mm film.

35 mm film was originally used in the film industry. oskar barnack doubled the 18*24 film in the film industry and designed a Leica camera with 35 mm film and 24*36 film, which realized the miniaturization of the camera and achieved a good balance between image quality and portability, so this specification has been used ever since.

However, the original Leica camera used a reusable cassette, and it was still inconvenient to use the film in the reusable cassette every time in the darkroom.

For this reason, nagel Camera Factory invented a disposable cassette using 35mm film. Photographers do not need to bother to load the film into the cassette before shooting, but only need to load the disposable cassette with pre-loaded film into the camera, which greatly improves the convenience of use. Kodak took a fancy to its application prospect. In order to obtain this patent, it acquired nagel Camera Factory and named it 135 in 1935, and officially launched 135 Kodak Film. "1" indicates that this is an easy-to-use disposable cassette.

Therefore, the complete definition of 135 film is: 35mm film with disposable cassette. 135 camera refers to a camera using 135 film. Today's photographic equipment has changed from film to photoelectric sensors such as CCD or CMOS, but this naming rule has been used, indicating that it is a camera with 24*36 film.

This question seems nonsense, but not many people can answer it. Because this involves a small history in the history of camera development. The answer upstairs in KmcF is the most correct. The original text is as follows:

"Among all kinds of cameras, 120 and 135 are the most common. Generally speaking, 135 is the camera model, named after 135 film. 135 film is a roll-shaped photosensitive film with 35mm height and perforated side, also called 35mm film or Leica film. Kodak began to develop films from 1895, the first type was1kloc-0/,and from 19 16, the number of 24 36mm films produced from 1934 was1.

In fact, 135 is just a product number of Kodak company. If you get used to it, it will become a special vocabulary. Generally refers to the 24x36mm size film.

Let me supplement this history.

When Oscar Barnach invented the world's first 135 camera, there was no suitable film. So he found the 35mm film, turned the film passing direction of this specification by 90 degrees, and increased the exposure area by 1 times. Originally, the 35mm cinematographic film was shot vertically in a cinematographic camera, with an exposure area of 18*24mm. On the first URLeica, the film was changed to horizontal film with an exposure area of 24 x 36 mm

Leica has designed a special cassette for outdoor use. This kind of cassette needs 35mm film cut in advance in a dark bag.

With the increasing popularity of this camera, it is very troublesome to assemble its own sub-film, and Leica has not applied for a patent for its own cassette.

Kodak saw business opportunities. So the 35mm film cut in advance by the factory was introduced, and the cassette was mounted. This film is the 135 film mentioned above. 135 is Kodak's number.

135 has nothing to do with the word "35mm" of the 35mm film it uses.

But this film can't actually be used in Leica cameras.

Because there are subtle structural differences between the two.

Even Leica ·IIIC can't directly use standard Kodak film. Because the first picture of 15 can be taken almost normally, and then the second picture of 2 1 will gradually drift away.

Therefore, the original Leica tapes are very precious for friends who play with old Leica cameras.

Because this kind of film can't be fully promoted, Kodak bought several camera factories in Germany in one breath, namely Kodak-Redding Sodium. It's all Kodak 135 film. In this way, more and more cameras use Kodak 135 film. Other film factories and camera factories all accept Kodak's 135 standard as the standard.

People gradually forget how the name 135 came from.

In short, Kodak, once a rotten thing in the street, was handed in by various print shops, that is, the camera carried that thing.

Why are 135 film and 120 film called 135 or 120?

Let's start with 135. There are actually many explanations for this name.

Explanation 1:

The film size is 36x wide and 24mm high, and the total height of the upper and lower square perforations is 35mm. It is called 135 film because it is a disposable cassette.

Explanation 2:

The film base thickness is 0. 135mm, so it is called 135 film.

But neither of these statements holds water.

If the height is 35mm, then 126 film and 828 film can also be regarded as 35mm films. If named by height, the height of 120 membrane should be 20mm? This obviously doesn't make sense

If 1 stands for disposable cassette, what does 234 in the subsequent 235,335,435 films mean? In fact, 234 here does not mean anything, but represents different loading methods:

It looks like this with a 335 camera.

Actually, there is a film numbered 35, which was introduced by 19 16, and 1933 is no longer produced, and its height is also 35mm.

If the film base thickness is taken as the criterion, in fact, the thickness of 135 film holder used for photography is not all 0.135 mm.

Personally, the biggest reason is coincidence.

Before the appearance of 135 film, different types of films were named according to "numbers" (Kodak assigned numbers from 19 13). When we look at the list of film formats, we will find that numbers are more like serial numbers, regardless of the film specifications.

The number between 10 1- 130 is unbroken. Then why did you jump from 130- 135?

I have to mention Leica here. 1In the 1920s, the Germans invented the Leica camera and began to use this kind of film. Because of the good balance between usability and professionalism, Leica cameras became popular, and many people also called this kind of film "Leica roll", but more and more camera manufacturers began to produce cameras using this kind of film, which is called Leica roll.

At that time, there were also film reels and 35 mm high bulk films. How to distinguish the films used in this camera? The easiest way is to number them.

The serial number is just after 130, and the height is just 35mm. Let's call it 135, which is convenient for memory and has certain significance.

This is the same as why there are no 9 generations of IPhone. The launch of the ninth-generation model happened to be the tenth anniversary of the launch of the iPhone, so it was simply named iPhone X.

As for 120, it can be seen that it is a number and has nothing to do with specifications.

Above.

120 and 135 are the most common cameras. Generally speaking, 135 is the camera model, named after 135 film. 135 film is a roll-shaped photosensitive film with 35mm height and perforated side, also called 35mm film or Leica film. Kodak began to develop films from 1895, the first type was1kloc-0/,and from 19 16, the number of 24 36mm films produced from 1934 was1.

As for why 35mm is called Leica film, that is another story.

135 film

Generally, the base layer thickness of 135 film is 0.135mm ...135 film comes from 35mm high perforated film. 19 13 years, oskar barnack, a German, used it in his Leica compact camera, thus forming a standard. Its name comes from the product number, not because its film base thickness is 0.135 mm. Japanese industrial standard 35 mm film. Such as 135-36, 135-20, etc. , refers to the number of frames shot in a movie.

120 refers to the earliest movie numbered "120".

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