What are fast and slow shots?

If the maximum diameter of a lens is f/ 1.4, it is called "f/ 1.4 lens". The larger the aperture, the more light the lens transmits. One lens can receive more light than the other, so it is "faster". So f/ 1.4 lens is faster than f/2 lens, f/2 lens is faster than f/2.8 lens, and so on.

Look at your camera lens. What is the maximum aperture, that is, the minimum f value? This is the speed of your camera.

One thing to remember is that any two lenses will transmit exactly the same amount of light as long as they set the same f value. For example, two different shots are set to f/2.8, aiming at the same scene. Other things being equal, the amount of light reaching the film through the lens is the same.

What are the advantages of a fast lens?

What are the advantages of snapping? Actually, the answer is simple. Fast shots can be shot in dim light conditions that slower shots can't shoot at all.

Suppose there are two cameras, an f/2 lens and an f/4 lens. If you want to take indoor photos in dim light, it is found that opening the aperture of the lens to f/2 and using the shutter speed of 1/30 seconds can just capture enough light and take photos with appropriate exposure. Results: As shown in these photos, this scene can be shot with f/2 lens at the speed of 1/30 seconds. Using f/4 lens at the speed of 1/30 seconds is not successful, because the maximum amount of light it can transmit to the film is not enough to expose the film normally. Therefore, the fast lens allows photographers to shoot in a wider lighting environment without increasing artificial light.

So, why don't you use the fastest lens? To some extent, this is a cost problem. The price of a quick shot is much higher than that of a slow shot of the same quality. Fast shots are usually bigger and heavier. In addition, because the technology required to make a fast lens is more complicated, the imaging is often not very clear at the maximum aperture.

In most lighting situations, slow motion can be as good as fast motion.

About fast and slow shooting:

If the maximum diameter of a lens is f/ 1.4, it is called "f/ 1.4 lens". The larger the aperture, the more light the lens transmits. One lens can receive more light than the other, so it is "faster". So f/ 1.4 lens is faster than f/2 lens, f/2 lens is faster than f/2.8 lens, and so on.

Look at your camera lens. What is the maximum aperture, that is, the minimum f value? This is the speed of your camera.

One thing to remember is that any two lenses will transmit exactly the same amount of light as long as they set the same f value. For example, two different shots are set to f/2.8, aiming at the same scene. Other things being equal, the amount of light reaching the film through the lens is the same.

What are the advantages of a fast lens?

What are the advantages of snapping? Actually, the answer is simple. Fast shots can be shot in dim light conditions that slower shots can't shoot at all.

Suppose there are two cameras, an f/2 lens and an f/4 lens. If you want to take indoor photos in dim light, it is found that opening the aperture of the lens to f/2 and using the shutter speed of 1/30 seconds can just capture enough light and take photos with appropriate exposure. Results: As shown in these photos, this scene can be shot with f/2 lens at the speed of 1/30 seconds. Using f/4 lens at the speed of 1/30 seconds is not successful, because the maximum amount of light it can transmit to the film is not enough to expose the film normally. Therefore, the fast lens allows photographers to shoot in a wider lighting environment without increasing artificial light.

So, why don't you use the fastest lens? To some extent, this is a cost problem. The price of a quick shot is much higher than that of a slow shot of the same quality. Fast shots are usually bigger and heavier. In addition, because the technology required to make a fast lens is more complicated, the imaging is often not very clear at the maximum aperture.

In most lighting situations, slow shooting can perform as well as fast shooting.