# Question: What Does The F 1.8 Mean?

## How do you know what f stop to use?

If someone tells you to use a large aperture, they’re recommending an f-stop like f/1.4, f/2, or f/2.8.

If someone tells you to use a small aperture, they’re recommending an f-stop like f/8, f/11, or f/16.

As you can see, an f-stop like f/2.8 represents a much larger aperture opening than something like f/16..

## Why is fixed aperture better?

Some higher-end lenses can maintain the largest aperture throughout the entire zoom range, so only one number is detailed. (f/2.8, below right). Fixed aperture lenses utilize more sophisticated lens elements than variable aperture lenses; and are also heavier than variable aperture lenses.

## What does f4 mean?

Rearranging gives aperture = f(focal length / F (the F ratio). So if you have a 50mm focal length and a 12mm aperture, F = 4, and aperture = f/4 (traditionally, a lot of rounding is allowed with lens specifications).

## What does F 4 5.6 mean on a camera lens?

It means it’s a zoom lens that can open as wide as f/4 when zoomed out to the widest angle of view. … Remember that apertures are expressed as ratios or fractions, so f/4 means 1:4 (the aperture is 1/4 of the focal length) and f/5.6 means 1:5.6 (the aperture is 1/5.6 of the focal length).

## Is it better to have higher or lower aperture?

A higher aperture (e.g., f/16) means less light is entering the camera. … A lower aperture means more light is entering the camera, which is better for low-light scenarios. Plus, lower apertures create a nice depth of field, making the background blurry. You want to use a low aperture when you want a more dynamic shot.

## What do f stops mean?

0-9. (Focal-STOP) The f-stop is the “aperture” opening of a camera lens, which allows light to come in. It also determines how much is in focus in front of and behind the subject (see depth of field). The f-stop is one of the two primary measurements of a camera lens.

## Does aperture affect light?

Aperture has several effects on your photographs. One of the most important is the brightness, or exposure, of your images. As aperture changes in size, it alters the overall amount of light that reaches your camera sensor – and therefore the brightness of your image.

## Is 2.8 A fast lens?

A fast prime lens would be considered fast when it has a maximum aperture under f/2.8. However, if the lens is 300mm or longer, an aperture of f/2.8 would be considered to be fast and the same goes for zoom lenses.

## Is the 50mm 1.8 worth it?

Yes, absolutely. The 50 f/1.8 is outstanding value for money providing a very wide max aperture for portraiture compared to other lenses in the same price bracket. I have the 1.4, but borrowed a 50 f/1.8 when my lens was being repaired.

## Is 1.4 or 1.8 lens better?

The 1.4 is quite a bit sharper than the 1.8 as well. If you shoot them side by side, you would easily be able to tell the difference in sharpness at the same aperture. It’s also nice that have that extra one stop of light. When you are shooting in low light situations, the bigger aperture helps.

## What is a good aperture range?

An f/4.0 maximum aperture is generally good in medium lighting levels. An f/5.6 maximum aperture requires good lighting or image stabilization unless outdoors before sunset. If you are shooting landscapes from a tripod, you are likely happy with f/8.0 or f/11.0. That your lens opens wider may be of little importance.

## What is the difference between 1.4 and 1.8 engine?

1) the number indicates the total volume of the inside of the cylinders: 1.4 liters versus 1.8 liters. this means all things being equal that the 1.8 uses more fuel and generates more power. Outside the US there are 1.2, 1.4 and 1.6 models of Sonic that work exactly this way, less available power but more economy.

## What does the F mean on a lens?

A lens’ speed is usually referred to by the size of the maximum aperture of the lens. This diameter is expressed as an f-number, such as f/2.8 or f/5.6. Note the smaller the f-number the larger the size of the opening and the more light is let through when the shutter is open.

## Why is the Canon 50mm 1.8 so cheap?

Once we get beyond the 50mm focal length, the lens design can remain relatively simple, at least for a while, but all of the elements need to be physically larger, so the prices go up again. And because the prices go up, the prices go up—fewer people will buy the lens, so each copy is going to cost a little more.

## Which aperture is best?

The sharpest aperture of your lens, known as the sweet spot, is located two to three f/stops from the widest aperture. Therefore, the sharpest aperture on my 16-35mm f/4 is between f/8 and f/11. A faster lens, such as the 14-24mm f/2.8, has a sweet spot between f/5.6 and f/8.