
Kodak's Professional Tri-X 400 Black and White Negative Film is a high-speed panchromatic film designed for a wide array of shooting conditions. The 620 format was introduced by Kodak in 1931 as an alternative to 120 and is used in vintage cameras. The 620 format is essentially the same film on a thinner and narrower spool. Although Kodak discontinued the production of 620 film, the Film Photography Project has committed to 620 film shooters by producing brand new 620 spools and manufacturing new 620 colour and black-and-white film.
| Characteristics | Values |
|---|---|
| Film Format | 620 |
| Film Type | Kodak Tri-X 400 Black and White Negative Film |
| Film Sensitivity | ISO 400/27° |
| Film Characteristics | Fine grain quality, notable edge sharpness, high resolving power, wide exposure latitude with consistent tonality |
| Film Usage | Wide array of shooting conditions, especially difficult lighting conditions and subjects requiring good depth of field or faster shutter speeds |
| Film Spool | Thinner and narrower than 120 film spool |
| Film Development | Responds well to push processing and standard black and white chemistry |
| Film Expiry | May still be usable past expiry, with potential for contrasty and grainy results |
| Film Price | $16.99 for one roll |
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What You'll Learn

Kodak Tri-X 400 is a high-speed panchromatic film
One of the key advantages of Kodak Tri-X 400 is its ability to produce striking images even in flat light, overcast days, or controlled studio environments. While other black-and-white films may appear dull in such lighting conditions, Tri-X 400 adds a sense of drama, importance, and timelessness to each frame. Its wide dynamic range and deep, rich blacks, along with bright whites, contribute to its exceptional balance of tonality. Additionally, its classic grain structure enhances the overall character of the images.
Kodak Tri-X 400 is available in different formats, including 35mm roll film with 36 exposures and 620-format film. The 620 format, introduced by Kodak in 1931, features the same film type as the 120 format but on a thinner and narrower spool. While Kodak discontinued the production of 620 film decades ago, the Film Photography Project has committed to supporting 620 film shooters by producing new 620 spools and film.
It's worth noting that Kodak Tri-X 400 has inherently more contrast than some other black-and-white films, such as Ilford HP5+ 400. This can be advantageous as it allows photographers to see their images with enhanced contrast straight out of the scanner. However, it's important to manage expectations when using expired Kodak Tri-X 400 film. While it may still be usable, older film tends to exhibit fog and graininess, and it is recommended to shoot at a lower ISO and develop it yourself to compensate for any degradation.
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620 film is thinner and narrower than 120 film
The 620 format was introduced by Kodak in 1931 as an alternative to 120. The 620 film is no longer being produced. The only difference between 120 film and 620 film is that the former has slightly longer and wider spools. The 620 format uses the same film on a thinner and narrower spool. The 120 spool core was made of wood, whereas the 620 spool is made of metal. The 620 format allowed for the building of smaller cameras.
The 120 film format was introduced by Kodak for their Brownie No. 2 in 1901. It was originally intended for amateur photography. The 120 film format is a roll film which is nominally between 60.7 mm and 61.7 mm wide. The film is held in an open spool originally made of wood with metal flanges, later with all-metal, and finally with all-plastic. The length of the film is nominally between 820 millimetres (32 in) and 850 millimetres (33 in).
The 620 film can be developed, and there are online tutorials on how to re-spool 120 film onto a 620 spool. However, this process requires careful maneuvering of the film in complete darkness. The Film Photography Project also produces brand new 620 spools and manufactures new 620 colour and BW film for vintage cameras.
Kodak's Professional Tri-X 400 Black and White Negative Film is a classic high-speed panchromatic film. It is designed for a wide array of shooting conditions and is characterised by its fine grain quality, notable edge sharpness, and high resolving power. It has a nominal sensitivity of ISO 400/27° when developed in standard black and white chemistry. Tri-X 400 also exhibits a wide exposure latitude with consistent tonality. It is a standard choice for photographing in difficult lighting conditions.
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620 film can be respooled from 120 film
Kodak discontinued the 620 film format in the 1930s, but it is still possible to get film developed in this format. The 620 format is essentially the same film as 120 film but on a thinner and narrower spool. This means that 620 film can be created by respooling 120 film.
Some companies offer a respooling service, where customers can send in 120 film to be respooled onto a 620 spool. This service is offered by Nik & Trick Photo Services, who charge £4.99 plus the cost of the chosen film.
It is also possible to respool 120 film onto a 620 spool at home. This can be done by rolling the film from the old spool to a new 120 spool and then tightly respooling it onto a 620 spool, ensuring that the film does not bunch up. This process is easier if you have a changing bag and some patience. It is also important to have a spare 620 spool, which can be purchased or found in old cameras.
Some people have also had success with filing down the edges of a 120 spool to fit a 620 camera. This can be done with a knife or nail clippers. However, it is important to be careful when doing this, as the wrong tools can create a fine powder that is difficult to work with.
Once the 620 film has been respooled, it can be used in a 620 camera, such as the Kodak Box 620 or the Kodak Six-20 Bull's Eye. This allows photographers to continue using their vintage cameras even though the film format has been discontinued.
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Tri-X 400 is a versatile film for various shooting conditions
Kodak's Tri-X 400 is a highly versatile black-and-white negative film, suitable for a wide range of shooting conditions and photography types. It is a popular film stock choice for photographers, known for its beautiful and classic grain structure, which has remained unchanged since 1954. The film also offers a high contrast and rich tones, resulting in high-quality images.
Tri-X 400 is a high-speed panchromatic film, making it ideal for photographing in various lighting conditions. It has a nominal sensitivity of ISO 400/27° when developed in standard black-and-white chemistry and can be pushed to higher speeds if needed. This film is particularly useful when working with dimly lit subjects, fast-action scenes, or situations that require a good depth of field and fast shutter speeds. Additionally, it helps extend the distance range for flash pictures.
The film's fine grain quality, notable edge sharpness, and high resolving power contribute to its versatility. It exhibits a wide exposure latitude, allowing for consistent tonality and the ability to handle overexposure and underexposure without significant loss of detail. This latitude means that even if the film is not exposed correctly, the effects of overexposure or underexposure will be minimal.
Tri-X 400 is suitable for both professional and amateur photographers and can be used for a variety of photography types, including street photography, portraits, weddings, architecture, and abstract subjects. It is a good choice for vintage cameras that use the 620 format, which Kodak introduced in 1931 as an alternative to 120 format. While Kodak discontinued the production of 620 film decades ago, the Film Photography Project now offers new 620 spools and film, including Tri-X 400 in this format.
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Tri-X 400 has a nominal sensitivity of ISO 400/27° when developed in standard black and white chemistry
Kodak's Professional Tri-X 400 Black and White Negative Film is a classic high-speed panchromatic film designed for a wide array of shooting conditions. It is a popular choice for photographers working in challenging lighting situations and those who require faster shutter speeds or good depth of field. This film is known for its fine grain quality, notable edge sharpness, and high resolving power. It also boasts a wide exposure latitude with consistent tonality.
The Film Photography Project has made a commitment to 620 film shooters by producing brand new 620 spools and manufacturing new 620 colour and black-and-white film. This includes Kodak Tri-X 400 in the 620 format, which has been cut and spooled by Film for Classics. This film format was introduced by Kodak in 1931 as an alternative to 120 and is used primarily in vintage cameras from that era.
While Kodak Tri-X 400 has a nominal sensitivity of ISO 400/27°, some photographers choose to shoot at a different ISO and develop accordingly. For example, one photographer recommends shooting at an ISO rating of 320 and slightly overexposing the film rather than overdeveloping it. Another recommends shooting at ISO 100-200 and developing with Kodak HC110 at 1.5x the recommended time. This is because higher-speed films will degrade faster, so giving the film extra light can help bring out the highlights and details.
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Frequently asked questions
Yes, you can get 620 Tri-X Pan developed. However, it is an outdated format, so it may be challenging to find a lab that can process it.
You can get 620 Tri-X Pan developed at specialised photo labs that cater to vintage films and formats. These labs may be harder to find compared to those that only process modern films.
Self-development of 620 Tri-X Pan film requires a basic understanding of film processing and access to the necessary chemicals and equipment. You can find tutorials and advice online, but the process typically involves loading the film into a developing tank, adding the correct chemicals, agitating the tank, and then drying the film.
If you cannot find a lab that develops 620 Tri-X Pan film or prefer not to do it yourself, you can consider respooling the film onto a 120 format. This process involves rewinding the 620 film onto a 120 spool, which can then be processed by labs that handle the more common 120 format.
































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