The working value of Nikon D4 sensitivity test is high sensitivity ISO3200.

IT 168 Evaluation 20 12 In the first week, Nikon officially launched the new flagship of the top SLR-D4. At this point, Canon's EOS high-end SLR representative 1D X released in June last year finally has an equal opponent. Sword refers to two cameras, London, Orsay, Nikon and Canon. While continuing the excellent performance of the old works, they also climbed to a new technological peak. Quan Huafu's high-quality images, ultra-high-speed continuous shooting design concept, precise and delicate focusing photometry performance and convenient camera networking function, D4 and 1D X have built the best photographic equipment platform for photographers.

Nikon D4

Nikon's civil war has always been concerned by photographers, especially the performance of D4 in high sensitivity and the gap between D4 and D3s in high sensitivity. Is D4 better or worse than D3s? Let me test it myself and give you the answer. The following scenario is the standard sensitivity test environment of IT 168 evaluation room. We fixed the camera on the gear platform of a heavy tripod and let the camera shoot the photosensitive effect of each gear motionless.

After that, we cut a photo slice from the same position in the above picture, as shown in the red box, to see what the sensitivity of D4 is.

First of all, we turn off the long exposure noise reduction and high sensitivity noise reduction, and slice the original JPG directly.

JPG come straight to the point

From the slice, we can see that D4 has very good image quality from ISO 50 to ISO 400. Sharpness, noise control, detail preservation and color cast resistance are impeccable. Although the picture of ISO 800 is noisy, the quality of ISO 3200 can still meet the demand of high-quality output. Until ISO 6400, the noise of the picture began to increase, the color shifted slightly, and the details of the picture began to lose.

When the sensitivity reaches ISO 12800, the noise is very obvious, the color shift increases, the picture details begin to decrease obviously, and the loss is serious. Therefore, the author thinks that the available sensitivity of Nikon D4 is ISO 3200, and it is recommended to use it as little as possible above ISO 6400.

Secondly, let's eat another set of raw JPG original slices and see if it will be better.

Born in JPG

From the sensitivity slices shot in RAW format in the above picture, the author found that when ISO is below 12800, the quality of JPG output will be better than that from RAW to JPG, and when ISO ISO 25600, JPG output will have more noise than that from RAW to JPG. If you really only use ISO 100-ISO 1600, there is absolutely no need to pursue low noise and shoot in RAW format. Because the picture quality of JPG will be better, and the shooting in RAW format mainly plays a greater role in ensuring the amount of photo information.

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Just finished the performance of Nikon D4 with high sensitivity. Here is a further test of Nikon D4 with high sensitivity. That is, what effect will it have on the picture after turning on noise reduction.

The author took photos of the same standard under ISO 3200 and ISO 6400, in which all noise reduction functions were turned off, only the noise reduction function was turned on for a long time, and only the high-sensitivity noise reduction function was turned on, and both were turned on. And compare the 100% enlarged slice of the original image at the position shown in the red box above to see what the noise reduction function has done to the change of Nikon D4 image quality.

As shown in the above picture, when noise reduction is turned off in ISO 3200, the details of the characters will be clearer than the other three pictures. Turn on noise reduction for a long time, although the details of the picture have not decreased, but the noise has begun to increase, while turn on high-sensitivity noise reduction, the noise is obviously improved, but the details of the picture are seriously lost. When both kinds of noise reduction are turned on, the loss of details will be further aggravated.

ISO 6400 turns off noise reduction, with the best details and the most obvious noise. However, when noise reduction is turned on for a long time, the noise has not been significantly improved, and the loss of details is not particularly serious. When high-sensitivity noise reduction is turned on, the noise is obviously improved, but the loss of details begins to increase. When both kinds of noise reduction are turned on, the detail loss is the most serious.

Another screenshot with details of 100% basically shows the characteristics of Nikon D4.

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Nikon D4 attracted much attention as soon as it was released, which is also the performance of D3s in high sense compared with the previous generation. Is Nikon D4 more prominent after the upgrade, or is it not as dominant as Nikon D3s? Let's make a comparison, shall we?

This is still our standard test environment, and there is no need to compare between ISO 50 and ISO 800. Let's compare 1600, ISO 3200, ISO 6400 and ISO 1600.

D4 vs D3s

As shown in the above figure, the fourth gear performance of Nikon D4 is not as good as that of Nikon D3s, especially when ISO 6400 is used, the noise increase is very obvious. At the same time, D4 is not as good as D3s in detail. Perhaps this will disappoint N Powder, which has been expecting a breakthrough in D4.

Summary: Nikon D4, as Nikon's flagship SLR camera, has been highly anticipated since its release. It is equipped with a brand-new digital image processor EXPEED3, and its high sensitivity is higher than D3s, but its high sensitivity performance is not as good as Nikon D3s. However, D4 has super high 1 1fps continuous shooting, full HD camera and convenient networking function. If you lower the pixels and increase the continuous shooting, it is very suitable for capturing animals and movements. This machine is the flagship model of positioning professional photography.