The problem with that implementation, as detailed in my sRAW Format Explained article, was that Nikon was stripping out a lot of data from the sRAW file and color + luminance information was being demosaiced by camera software to form RGB pixel data. NIKON D850 + 24-120mm f/4 28mm, ISO 64, 16/10, f/8.0 mRAW / sRAW FormatsĪs you may already know, the Nikon D810 already had an sRAW format available as an option in the camera menu. However, my biggest surprise with the D850 so far is not in the image quality department, but rather in the implementation of mRAW and sRAW, which I will cover below. Overall, it looks like the Nikon D850 shows yet again class-leading performance in sensor performance, which is exciting to see. Based on what I have seen so far, dynamic range performance differences between the D850 and the D810 are minimal, but noise performance differences at high ISOs are definitely noticeable – something I will be presenting in the next pages of this review. Nikon has kept the amazing dynamic range performance of ISO 64 and although I wish the native ISO sensitivity was lowered even further, unfortunately, current sensor technology simply does not allow yielding even more dynamic range out of modern sensors. Image Quality and ISO Performanceĭue to the structural and technological improvements to sensor design, Nikon was able to push the sensor performance of the Nikon D850 to its limits. Plus, Sony already hinted that it will be keeping the best of its sensors for its own cameras, so it was about time for Nikon to move its focus towards other sensor manufacturers. Many thought that the D810 replacement would again have a Sony-designed sensor since both the D800 / D800E and the D810 / D810A had Sony sensors, but Nikon decided to take a different route this time, which in my opinion is good news since we probably won’t be seeing other cameras with the same sensor any time soon (the original Sony-designed 36 MP sensor was used on the Sony A7R, Nikon D800/D800E/D810/D810A and on the Pentax K-1). It is also worth mentioning that Nikon designed the D850 sensor just like it has done before on many other DSLRs and used a third party silicon foundry to manufacture the chip. So despite having a higher resolution sensor, the Nikon D850 should be able to deliver outstanding image quality that surpasses the image quality of its predecessor, something we will be able to compare and see in the next pages of this review. Since photodiodes are positioned closer to the sensor surface on a BSI sensor, it minimizes light losses, which results in better image quality, as shown below: As I have already mentioned on the first page of this review, the D850 features Nikon’s first ever back-illuminated (BSI) CMOS sensor, which is kind of a big deal, since BSI sensors are more efficient than traditional CMOS sensors in capturing light.
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