Distinguish hand shock or Out-of-focus

Distinguish hand shock or Out-of-focus

Even beginners shouldn't, because it's an important basic skill, canvas prints but unfortunately it's a common mistake. In addition to an unstable hand or pressing the shutter too hard, it could be that the camera is in the wrong focus. Who is right and who is wrong? Now teach you to distinguish hand shock and camera focus different effects, clearly cannot deny the camera is not good enough.

How do I determine if the photo is out of focus?

Both the hand shock and the out-of-focus camera result in blurring, discount canvas prints or loss of focus, but what is the definition of out-of-focus? The so-called out-of-focus, is the original focus, should be clear range, become not clear, lose clear lines.

Generally, out-of-focus can be found in the screen preview of the camera, especially when there are other sharp photos, acrylic prints online which can be easily found by comparison. If you are cautious, you can enlarge the photos by one or two times. The closest inspection should be to enlarge the image to 100% of its true size, preferably on a computer screen.

Hand shock effect

If you are careful, hand tremors are not all the same. They have the same causes but different effects. They can be divided into the following three categories:

Blurring the whole picture: when you find that the whole picture doesn't have any sharpness, including the foreground, background and main body, then the whole camera vibrates! There are two causes: pressing the shutter too hard causes the camera to shake, and not pressing the shutter fast enough causes the hand to shake.

Overlapping images: when you find that the image is not completely blurry, but just two identical images stacked together to form a ghostly image, it is also because the camera vibrates, as above, but the vibration causes the camera to misexpose the image and make the same image overlap.

Motion blur: when you find a remnant of a photo, like a slow shutter exposure, it's also because the camera moved during the shot. Even in still life, the motion blur creates a shadow that makes it look like it is moving. Is there a solution to the above? It stabilizes the camera, of course. You can recast the camera gesture, press the shutter carefully, or use a tripod.

Distinguish hand shock or Out-of-focus

Out-of-focus effect

When the focus is out of focus, the camera is focusing the wrong way. In other words, there must be a place where the picture is clear, either in the foreground or in the background. This error is especially common when using a large aperture, because the large aperture depth of the scene, the middle focus is clear only a few places, so easy to go out of focus.

The solution is to use autofocus carefully, or to switch to manual focus. An appropriate autofocus mode can help ensure that the subject is in medium focus, such as changing the camera's focus or range, or using chase mode to chase a moving subject. (Of course, it is also ok to turn down the aperture and increase the clear medium focus range.)

Conclusion: how to keep the camera stable

Whether the hand shakes or out of focus, photo blurring is also a low-level error, because a clear photo is the most basic. Unless you are deliberately out of focus, this is not a mistake to make. Even if you don't use a tripod, there are many ways to make your handheld camera more stable. Remember, floating canvas frame keep your camera stable or don't get lazy and get a tripod!

26th Nov 2019

Recent Posts