The first time I photographed the starry sky, I used Nikon D850 with a sensitivity of 3200. Why is there so much noise?

None of the starry sky I photographed has a sensitivity lower than 6400, even 14 1.8.

Even the close-up of Yin Xin was used 16000.

Understand Jeff's rule.

The first time I photographed the starry sky, I used Nikon D850 with a sensitivity of 3200. Why is there so much noise? Let me talk to you about this problem.

In fact, shooting at night is more or less noisy.

There is no problem that Nikon D850 should shoot at a sensitivity of 3200. Your shooting produced a lot of noise, which may be related to other settings or lenses.

1, you should shoot with a constant large aperture and shoot with the maximum aperture of this lens.

2, your exposure time is too long, and long exposure will also produce some noise.

3. Lens quality, and the imaging quality of individual lenses is not ideal.

4. Environmental light pollution is also one of the reasons that affect imaging.

For example: camera D850, lens 14-24/2.8, if shooting the Milky Way, you should set it like this:

The sensitivity can be set at 5000-6000, the lens aperture is set at 2.8, and the exposure time is set at about 20 seconds, so the picture taken should still be more delicate.

The above is an example of shooting the Milky Way. If shooting the orbit of a star, it is recommended to use a stack.

The above is my opinion, welcome friends to add.

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

Look at the previous answer. This is complete nonsense. Nikon d850 itself is a high pixel machine, and the high sense itself is poor. If iso goes to 3200, there will be insufficient light at night, and there will definitely be more noise. In order to avoid noise, you can first use a large aperture lens, such as Sigma 14f 1.8 or 20f 1.4, Nikon 20f 1.8, which can minimize noise. Second, shoot the sky and the scenery separately, take more photos respectively, and add noise reduction later. Third, shoot with equatorial plane, landscape and sky respectively, and then synthesize them later. With the equatorial telescope, you can make the camera follow your sky, offset the rotation of the earth, and shoot the starry sky with low iso long exposure. If there is still a lot of noise, you can take more photos later to reduce the noise.

Generally, machines with high sensitivity and tolerance are used to shoot the starry sky, such as d750, d6 10, d780 and z6. Nikon d850 can also have high tolerance, but high sensitivity is poor, and noise is inevitable.

This photo was taken with Sigma 14f 1.8, and the galaxy is relatively thin.

Shoot the starry sky with a large aperture lens, preferably a wide angle. Of course, with the equatorial plane, the lens limit is small. Many Montana shots are fixed at 50 or 85. The longer the focal length of the lens, the richer the details of the galaxy, but the more complicated the later work; The wider the lens, the smaller the galaxy, but the wider the angle of view, the simpler the later work.

The above picture was taken with Nikon 20f 1.8, and the Milky Way is obviously much thicker.

Second, the mobile phone, COMS, is about to break down!

There is no need to use such high sensitivity to shoot the starry sky. The higher the sensitivity, the more noise. In fact, it is more appropriate to use ordinary 100, with a maximum of 800. The exposure time can be prolonged and the effect is good.

Does D850 high-sensitivity camera have much noise? Are you kidding? I used D700 to shoot the starry sky and stellar orbit in the no man's land of Lop Nur (camping in the no man's land of Lop Nur for a few days), and the effect was not particularly good, but it was passable. After all, the machine is of that grade, the lens: 14/24 is ultra-wide, the aperture is 2.8, and the exposure time is 45 minutes. The camera is off, the built-in noise reduction tripod is used for one-time shooting, and the film is

Lop Nur Ya Dan starry sky

The stellar orbit of Lop Nur

Time: 2065438+May 2008, location: Lop Nur adventure photography team camping area.

First, d850 is a full-frame camera with good high sensitivity, so it is the right choice to shoot the starry sky.

Second, shooting the starry sky generally requires a large aperture lens, which can minimize the sensitivity and exposure time;

Thirdly, due to the influence of the 500 rule (some people say the 600 rule), the exposure time is limited, so in order to get a clear image, we have to improve the sensitivity of the camera without using the equatorial meter;

4. Take multiple photos in the early stage and use superposition technology in the later stage to make the image clearer and achieve the effect of noise reduction.

There must be noise when shooting the starry sky, so use high sensitivity. As for whether to use 3200, it should be adjusted at any time according to the specific situation at that time.

Pay attention to the following points when shooting in the starry sky: 1. Try to use the minimum focal length of the zoom lens (the widest angle end is recommended); 2. Use the maximum aperture; 3. The exposure time is 500, and the exposure time =500/ lens focal length; 4. Use manual focusing and test repeatedly to ensure clarity; 5. Be sure to turn off the long-term noise reduction switch of the camera to avoid prolonging the exposure time. Finally, in the later stage of film production, noise reduction can be done again. I hope it helps you.

First of all, there is no problem with machine selection.

Secondly, there are no fixed parameters for starry sky shooting, which has a lot to do with the actual sky environment.

First of all, you need a wide-angle lens with a large aperture. 14-24mmf2.8, 14mmf 1.8 or something like that will do.

Second, the 500 rule, but because of the high pixel machine, the rule must be lowered. You can use the rule of 400 to the north, and you can use 200 or 300 to photograph equatorial galaxies. Shutter time should be less than or equal to (regular number divided by focal length), otherwise smear will appear.

Thirdly, after the completion of the previous steps, change the ISO value according to the brightness of the shot. F2.8 is about 1600.

Feel for yourself in the future.

I also discussed this matter with others the other day. He said that D850 pixels is high, so there is a lot of noise when it is high. He thinks D750 works well (because the pixels are low). You can try to compare it. I shoot indoor activities at work, and the ISO is all 3200, and no noise is found. ...