What does the 400 mean on film?

The ISO number is essentially an indicator of how sensitive the film is to light – it's also often referred to as film speed

film speed

Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to describe the relationship between exposure and output image lightness in digital cameras.

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Film speed - Wikipedia

. You'll find this number on the side of any type of film and common ISO numbers include 100, 200, 400 and 800. The lower the number means the lower the 'speed' of the film.

What's the difference between 200 and 400 film?

The difference is the sensitivity of the film to light. 400 speed is twice as sensitive as 200 speed film. As for contrast/exposure latitude/whatnot it depends on the individual film. In general lower speed films tend to be/appear sharper, have less grain, and smoother gradients.

What is 400 ISO film used for?

If you plan to shoot indoors in low light conditions, film ISOs of 400, 800, or even 1600 are preferred. If you are shooting outside and you have lots of sunlight, try to use ISO 100 film, or even slower (you can find films with ISO 50 or 25).

Is 400 film speed good?

ISO 400 film speed is a great all-purpose film that can be used for most situations. Photographs can be taken without the need for high amounts of lighting and moving subjects can be photographed with ease.

What is the difference between 400 and 800 speed film?

The grain on Portra 400 and 800 are both extremely fine; however, due to the higher ISO, the fine grain on Portra 800 still looks different than the grain on Portra 400. In fact, Portra 800 has a high grain content and sets the stage for the main subject in your photo.

Understanding Film ISO - Analog Exposure Basics

Is ISO 200 or 400 better?

ISO 400 is one stop brighter than ISO 200 and that means it would take half as much time to record the same amount of light at the sensor.

Can you use 400 ISO film outside?

Medium Film Speeds

It's an excellent choice for taking portraits indoors with natural lighting. ISO 400 film can also be used outdoors in cloudy or overcast conditions. It's a great film to have on hand if you don't know what your plans are, and you think you'll be shooting both inside and outside.

What speed film is best?

What does 200 mean on film?

A Guide to ISO

You'll find this number on the side of any type of film and common ISO numbers include 100, 200, 400 and 800. The lower the number means the lower the 'speed' of the film. A low-speed film will be much less sensitive to light and produce a much finer picture.

Can 400 ISO film at night?

So for the best possible image quality when shooting at night, keep the ISO as low as you can. If you can get a fast-enough shutter speed at ISO 400, use that. Dial in the lowest possible ISO setting that will give you a fast-enough shutter speed to avoid camera shake.

Is 400 ISO better?

High-speed or fast, films range from 400 to 3200 ISO. These films give you a lot more flexibility on overcast days and in low light situations. Also, they are a good choice if you're shooting fast-moving subjects. You get more noticeable grain with fast films.

What is the difference between ISO 400 and 800?

A 400 speed film needs half the light as a 200 speed film. An 800 speed film needs half the light of a 400 speed film. The benefits is that, with a faster film, you can use a faster shutter speed or a smaller aperture to get a correct exposure.

What happens if you shoot 200 ISO film at 400 ISO?

Doubling or halving either shutter speed or ISO, equals 1 stop plus/minus. So ISO 200 film is 1 stop slower than ISO 400 film, and 800 ISO is 1 stop faster than 400 film. And 1/250th of a second shutter speed, is twice the light (1 stop more than) 1/500th of a second, and half as much light as ISO 125.

Can camera film expire?

Most film is good for 2-3 years after it is manufactured, so most camera film-making companies will list the expiration date as 2 years after the roll is manufactured. The exception is instant film which should be used 1 year after the production or expiration date.

What film speed is best for night photography?

While the exact settings will change from picture to picture, the ideal settings for night photography is a high ISO (typically starting at 1600), an open aperture (such as f/2.8 or f/4) and the longest possible shutter speed as calculated with the 500 or 300 rule.

What film is best for Flash?

If you are able to use a flash, any films with ISO 200 or higher would be safe. The first consideration in picking a film is whether you will use a flash. A flash is going to not only light up your scene but also give a different look to your photos.

What does ISO 400 mean?

A low ISO number will give a dark exposure and a high ISO will give a bright exposure. It's simpler then aperture. ISO most often starts at the value of ISO 100. This is the lowest, darkest setting, also called the base ISO. The next full stop, ISO 200, is twice as bright, and ISO 400 is twice as bright than that.

What does ASA 400 mean?

It is usually said that films with ASA higher then 400 ASA are fast, because the respond fast to light. And it is also usually said that films with ASA value lower then 100 are slow, because they take longer to respond to light. The 200 ASA film is considered of medium speed.

How does speed affect film?

The lower the speed, the longer an exposure to light is necessary to produce image density. If the film speed is higher, it requires less exposure but generally has reduced quality in the form of grain and noise [source: Zakia and Stroebel].

Can you use 200 film inside?

The Color Balance, Film Speed, And Grain Of Kodak Gold 200

Kodak Gold 200 is a daylight balanced film. This means if you want to shoot it under tungsten or florescent lights indoors, you'll need to add a filter or do some color correcting in post.

Can you shoot 200 ISO at night?

At ISO 200, around f2 and 1/30 should let you get highlight detail under reasonably good street lights IME - that's my standard for shooting at night in brightly lit shopping streets. You might want to experiment with results at higher and lower speeds to see how slow you can shoot handheld.

Can you shoot 400 ISO indoors?

ISO 400 film is perfect for low light, or if you just don't know what sort of light you'll have. ISO 400 film is great for shooting indoors without flash, and it still has a clean, clear image for use in daylight.

What shutter speed should I use for 400 ISO film?

At ISO 400, the shutter speed would be 1/400 (or its closest conservative setting of 1/500s) and so on. Generally speaking, if shooting in bright sunlight with a digital camera, it is best to choose the lowest native ISO setting on your camera which is normally ISO100 or ISO200 depending on camera model.

Can you shoot ISO 800 on daylight?

Yes, you can. As the others have noted, the quality of the pictures is not as good as with less sensitive films: more grain and less brilliant colors (for color films). About 20 years ago, I've often used Kodak Ektachrome 1600 (a diapositive film) as ISO 3200.