Telephoto 200, aperture 5.6 Why is the picture quality poor?

Choosing apertures 5 and 6 is one of the most important apertures, and there are many factors that make it unclear. The speed is too low, and the lens is not anti-shake. The focus is not locked on the theme. There is deviation in the adjustment mode. Whether the VU mirror is clean, etc. If there is no problem, consult the repair shop again.

This question is really a bit difficult to answer, because you didn't send the picture, and you don't know the difference. It's too general What fuselage are you using? What brand of lens?

Generally speaking, it must be a shooting technical problem, and there are many factors that affect the image quality.

1, wrong focus, speed lower than 1/200 seconds, camera shake, blurred picture.

2, low speed, hand-held shooting, no tripod, camera vibration.

3. The aperture and speed are not adjusted well, the picture is underexposed or overexposed, and it is too dark when shooting.

There is something wrong with the camera, and the lens is moldy.

There must be something wrong with this. There are so many things to learn in photography that many combinations are wrong, which directly affects the quality of film. You can't make a good film with a SLR.

Next, I took some photos with Nikon's ordinary head 18- 135mm, all of which were taken by hand, and the focal length was 135 to see how the quality was.

Telephoto 200, aperture 5.6 Why is the picture quality poor? When shooting the lotus theme, because the shooting position is far away from the lotus, it is impossible to get close, so telephoto or even ultra telephoto lens is the best choice. Then, why is the quality of lotus with telephoto 200 and aperture 5.6 poor? Here, under the premise of troubleshooting the camera, analyze what caused the poor image quality.

1, jitter

The telephoto lens is prone to shake, so a tripod is needed for anti-shake. At the same time, when using the tripod, we should pay attention to opening the reflector for pre-lifting, closing the lens for anti-shake, and using the cable release to reduce the picture jitter. If you must hold it by hand, and the camera body or lens has anti-shake, please turn on anti-shake and pay attention to using the safety shutter.

In addition to camera shake, we should also pay attention to the picture blur caused by the "motion" of the lotus subject. Faced with this situation, in addition to waiting, we can also improve the shooting time (such as windless weather, long subject stay) and use continuous shooting and other means.

2. Focus

Although the lotus flower is motionless most of the time, it is easy to focus, but the lotus leaf with considerable aesthetic feeling will affect the focus, which needs attention. Of course, you can also use the branches and leaves in front of the lotus to make the foreground, and with the help of the huge leaves of the lotus, let the lotus make the finishing touch in the picture.

In addition, the most common mistake is to get a clearer image, which is often close again. When the lens is pushed to the focus limit, the lens cannot focus very clearly. At this time, it will become clear if you go back a little, so this distance is the nearest focus distance, and you can only focus on this distance.

Step 3 light

When the light in the scene is not very bright, in order to prevent the photo from being blurred manually, a tripod, fill light or increase the ISO value will be used, but the higher the sensitivity, the more noise the photo will have, which needs to be controlled within a reasonable range.

In addition, the lens will have some glare when shooting in backlight, which looks hazy and fuzzy, and there will be some noise. On the contrary, photos taken in light will be much clearer and more transparent.

4. Meteorological conditions

When shooting distant scenes with telephoto, the picture quality is easily affected by the weather. Ultraviolet rays, dust and water vapor will reduce the image clarity, weaken the contrast and make the color unsaturated. You can use a hood to reduce stray light, and if necessary, use a polarizer (commonly known as CPL) to shoot. Polarizers can reduce the light from the sky, make the sky bluer, make the color of the landscape more saturated, and reduce the reflection of the water surface and the glare of the lens.

5, the lens reason

Under normal circumstances, the aperture value of f5.6 should be in the best aperture range, and the sharpness performance is not bad, so it may be that the quality of the lens itself is poor and the shooting picture is "fleshy".

Of course, there may also be some other factors, such as the cleanliness of the lens. It is recommended to wipe the lens before each shooting. For example, in the later period, some photos look "clear", largely because of the adjustment in the later period. Later technologies, such as reducing highlights, improving shadows, improving clarity and removing haze, further enhance the clarity of photos.

Finally, what I want to say here is that if you want to take clear and sharp photos, you need to eliminate the factors that affect the imaging quality. Advanced equipment is not available to many people. You can only dig from the above factors and eliminate the factors that affect the imaging quality as much as possible.

200-end 5.6-beat Lotus should be the best setting, because the telephoto blur is good, the aperture of 5.6 is moderate and the depth of field is appropriate. The reasons for poor image quality are nothing more than not using a tripod, inaccurate focusing, shaking hands and lotus, poor control of the subject's depth of field, poor mode setting, dim light and so on. I don't think it's the equipment, just my own opinion. The attached two pictures were both taken at 5.6 of Terminal 200.

The focal end is the longest, the aperture is the largest, and the picture quality is naturally not good. It's better to adjust the focus circle to 200 and turn it back, which will be much better. In addition, if the maximum aperture is not good, it is best to reduce it by one level.

If all of the above are done, it is a technical problem, such as out of focus, insufficient shutter speed, and the anti-shake on the shelf. ...

Shutter speed is below 1/200s. It is recommended to shoot with tripod and cable release. If not, please increase your sensitivity and try again.

Help you analyze the causes of poor image quality:

1. may be underexposed.

2. The sensitivity setting may be too high.

3. The shutter speed is too slow.

4. If the aperture of the lens is too large, it should be reduced by one or two gears.

5. The tripod is not used, and the hand is unstable.

6. The focus is unreal.

I don't know whether there is one problem or several problems at the same time. Only you can check it.

The best time to shoot lotus flowers is when the sun comes out in the morning! Use backlight, big shutter and fast aperture, people! Take a few more steps [cover your face] [cover your face] [cover your face] Be flexible [cover your face] and have more angles! [Cover your face]

Personal level problem! ! !

Telephoto 200, aperture 5.6 Why is the picture quality poor? Let me talk to you about this problem.

Photographers usually shoot scenes such as lotus flowers, and most of them use telephoto lenses. You said you shot it with 200 ends and 5.6 aperture, but the picture quality was poor. There may be the following reasons:

1, weather reason. Sometimes the weather is bad, the contrast of the works is low, the imaging is not very good and the imaging quality is poor.

2, the lens reason. I'm not sure which lens you used. The picture quality of some lenses is not very good, and the "fleshy" picture may be one of the reasons.

3. Set the reason. The image quality of a work is affected by many aspects, such as exposure time, sensitivity and camera stability. You should set these up in advance.

4. Human reasons. Sometimes we take pictures, and our personal shooting habits also have a great influence on the picture. For example, hand-held shooting sometimes causes the camera to vibrate because we press the shutter ourselves, which is also a reason.

When shooting lotus flowers, you'd better choose good weather, safe exposure speed, tripod and lens quality, so you should be able to shoot good works.

The above is my opinion, welcome friends to add.

Sword dance images, western photographers, welcome to pay attention.

The pictures in the article are quoted online only to illustrate the meaning of the topic. The copyright belongs to the original author, thank you sincerely.

Just look at the two parameters of telephoto 200 and aperture 5.6 to shoot lotus flowers. The telephoto blurs the background, and the aperture of 5.6 can ensure a certain depth of field and a considerable blur effect. However, in order to get satisfactory photos, it is not enough to only care about these two parameters. After analyzing the question you asked, I didn't send out any photos of the question. It is estimated that you are just a photographer, but you read some tutorials recommended by others, thinking that as long as you use these two parameters, you will be able to shoot a good film, and the picture quality after shooting is poor, so you are confused. Although your question is very broad and difficult to answer, I am still willing to try to answer it, I hope you will be satisfied.

The picture quality you said is very poor. I don't think it will be blurred. For example, the focus is not accurate, and the slow shutter speed causes the picture to shake. Blurred pictures will not cause you confusion, and the reason is easy to find. The most common problem for beginners is that the ISO value is too high, which leads to a lot of noise after the picture is enlarged, and the picture is not delicate. The photos taken by SLR are not as good as those taken by mobile phones. The problem of high ISO value is confusing, especially for friends who have just used SLR, and often can't find the reason, which causes great confusion. Especially when shooting with AUTO file, the camera will automatically increase the ISO value and ensure a certain shutter speed in the dim environment to ensure the success of shooting. When the ISO value exceeds a certain level, the picture noise becomes unbearable. The biggest problem I analyzed may be here.

Finding the problem and solving it is very simple. Just look at the manual of the SLR and it will be easy to solve, so we won't waste your precious time here.

Send some photos of lotus flowers I took for your reference.