Dan De Lion wrote:
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Go back to pg. 7 and see who started it (hint: Gene51.) Actually I've already ordered 2 from B&H plus a grip. I already have the batteries and charger. Unfortunately B&H couldn't deliver them till after I leave the country for 10 weeks. Have no fear, I'll be back by the middle of Jan., 2018. If you still have any questions about 850s, I'll be glad to enlighten you at that time. Those two 850s will be replacing my well used 750s and 810.
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Ha-Ha-Ha.... "my well used 750's and 810", and no images posted here or anywhere else to prove what you claim. Show some actual, real photographic proof of what you are saying and maybe then someone might believe your claim. Until then, all it is is an unproven claim on your part. The D850 is NOT a FF 25MP camera. It is a 45.7MP camera that allows you to change file sizes from FF Full RAW 45.7MP to medium RAW mRAW 25.5MP to small RAW sRAW 11.3MP, and the smaller RAW files are 12 bit lossless compressed files, not 14 bit files.
This is from the following website on the D850, link provided below - 18) Three RAW Size Options - The Nikon D850 features three RAW size options: full RAW at 45.7 MP, medium RAW (mRAW) at 25.5 MP and small RAW (sRAW) at 11.3 MP. While Nikon says that these are great options for those who want to shoot at lower resolution, it is important to point out that the smaller RAW files do not utilize pixel binning – they are 12-bit lossless compressed RAW files, similar to what we have previously seen with the sRAW option. So with the 12-bits of lossless compression, we are probably not going to be able to even pull more than 11-bits of data, which is unfortunate. In short, while it would be wonderful if Nikon gave us true 14-bit lossless compressed RAW files with pixel binning in all three resolutions, that’s definitely not the case on the D850.
https://photographylife.com/everything-you-need-to-know-about-the-nikon-d850The following is from Canon Europe on RAW, S-RAW, MRAW file types, link provided as well. RAW - A RAW file is the image data exactly as captured on the sensor. Any settings you apply in white balance, Picture Styles and some other areas are only appended to the image as a small header file. This means they can be changed later in RAW conversion software such as Canon’s Digital Photo Professional (supplied with the camera). A RAW file is often referred to as a ‘digital negative’ because the data can be processed and printed in different ways to produce different results – just like the negative from a film camera. Also, like a film negative, the RAW file never changes. When you open a RAW file in a software application, it is actually a copy of the data which opens. When you save this, it creates a new file on your computer. The original RAW file can then be opened again (as another copy) and worked on to produce a completely different result.
Advantages
Can be modified after capture
Maximum flexibility
Widest range of colours recorded
Disadvantages
Largest file size
Needs computer for processing
S-RAW - Introduced with the EOS-1D Mark III, S-RAW provides all the advantages of a RAW file, but in a smaller file size. An S-RAW file has approximately one-fourth the pixel count and approximately half the file size of a RAW image. Just like RAW images, S-RAW images can be adjusted and processed with Digital Photo Professional software (supplied with the camera). S-RAW will appeal to wedding photographers, for example, who do not need full resolution for wedding candids, but who do need the post-production control RAW offers.
Advantages
Smaller file size than RAW (so more images can be captured to a media card)
Disadvantages
Lower resolution than RAW
M-RAW - Introduced with the EOS 7D, and also on the EOS-1D Mark IV, M-RAW provides all the advantages of a RAW file, but in a smaller file size. Depending on the camera an M-RAW file has approximately between 55-60% of the pixel count and approximately two thirds the file size of a RAW image. Like RAW images, M-RAW images can be adjusted and processed with Canon’s Digital Photo Professional software (free in the box with the camera). Shooting M-RAW files might appeal to wedding photographers who don’t need full resolution for wedding candids, but who do want the post-production control that RAW offers. It could also be of use to sports/action photographers who will get an increase in the number of frames when shooting in bursts due to using a smaller file size. M-RAW is also worth considering if you are not planning to make prints larger than A3 size.
Advantages
Smaller file size than RAW (so more images can be captured to a media card).
Increased burst shooting possibilities.
Disadvantages
Lower resolution than RAW.
http://cpn.canon-europe.com/content/education/infobank/image_compression/file_types_raw_sraw_and_jpeg.do