What is Outline? Simple tips for taking clear, blur-free photos

Image sharpness is one of the factors to create a good photo. However, many users always make the mistake of out-of-focus when taking pictures. So what is out of focus and how to take clear pictures without blur? Let’s find out with Tnhelearning.edu.vn now!

What is Outline?

Out of focus is a common error that occurs when the main subject in the image is blurred due to being out of focus.

Out focus will make the photo blurred some objects or areas to be captured, if more serious can completely ruin your photo.

Cause the image is out of focus

• Wrong focus : In auto mode, the image is out of focus because the subject being taken is behind an object, so the camera will focus on the part in front of the subject you want to capture. Or in manual focus mode, in the process of aiming and observing on the camera, you choose the subject to focus incorrectly, leading to a blurred image.
• Camera shake : In many cases, your camera shake or the movement of the mirror in the camera inadvertently causes the image to shake causing out of focus.
• Subjects are photographed in motion : When shooting subjects that are moving, it will be difficult to capture that moment because the shutter speed is not fast enough.
• Depth of field is too thin : There are many people who buy and use a lens with a large aperture and have a habit of opening the aperture all the way, if so, the depth of field is too thin, making the image not have wide definition. but only in a certain area.

• Aperture too small : When you open a lens aperture too small, it increases the effects of diffraction, which bends the amount of light that passes through the aperture blades of the lens, which prevents focusing. Light entering the sensor will inadvertently blur the image a lot.
• Slow shutter speed: The shutter helps regulate the amount of light reaching the sensor. When setting the shutter too slow, the ability to produce sharp images will be extremely low.
• Equipment factors : In addition to the above factors, there is also a device factor that is the camera body or lens is out of focus or the lens at the largest aperture is out of focus.

Tips for taking photos that are not out of focus

Take advantage of autofocus technology

In this mode, the camera uses a sensor that automatically adjusts all relevant parameters to produce the most complete image. The photographer only needs to manipulate the composition, focus, press and shoot.

In addition, newer cameras often have more than 1 focus point, usually denoted AF , and users are free to choose any point as the focus center for the frame.

Models with autofocus technology: Nikon D7100, Nikon D610, Canon EOS RP, Canon EOS 750D.

Mastering the shutter speed

You must ensure that the shutter speed is at least the same as the focal length of the lens. To be more sure, double the speed number. For example, with a 35mm lens, your shutter speed will not be slower than 1/35 of a second (when doubling the focal length number will be 1/70 of a second ) or faster than that number.

Choose a lens

Not all lenses are equally capable. You should choose a lens to match the situation, light and number of people in the photo.

An ideal lens is usually 50mm f/1.8 . Or lenses that are a bit more expensive and offer better sharpness, such as 85mm f/1.8 or 50mm f/1.4 .

Adjust the aperture

The larger the aperture , the more likely some essential details in the photo will be blurred , helping to bring out the main subject. So, if you want to capture people in a straight line, use a large aperture to reduce the risk of blur. When shooting a person, the large aperture also makes it easier to focus on the subject.

No shaking hands

Not only with the camera, any device also requires not to shake hands when taking pictures. Ideally, you should use a tripod or other support device to keep the camera steady. If you have to shoot by hand, try to hold the camera steady. With just a little shake, the image will be in focus in the wrong place right away.

Adjust the focus point

There are many ways to focus. However, if you are new to shooting, adjust the focus point in the center and then try to drag the focus over where you want to shoot. Over time, focusing will become easier as you gain experience.

Clean the device

Dirty cameras , especially lenses, will affect the quality of photos. Therefore, you should clean them regularly . This makes the device more beautiful and effectively increases its lifespan.

Above is information about what outfocus is and how to take clear, blur-free photos that Tnhelearning.edu.vn shares with you. Hope the above information will help you choose to buy the right watch.