![]() ![]() ![]() I suspected, but now it is absolutely clear why Sony avoided supporting uncompressed RAW. Sadly its so annoying and a big bummer! So we have to wait for the next firmware update if it is technical possible with the limitations of used cheap/weak porcessor (engine) at all!!! + my addings that the uncompressed file option does not work within continous and silent modes!!! Let’s hope Sony has this on their todo list for the next firmware update!” ![]() In short, we would all save space, time and have a faster camera if Sony could add lossless-compressed files and not use the 16bit format. But it might be that the CPU in the Sony cameras is not fast enough for Huffman encoding? So Sony users lose triply: wasted storage, degraded camera responsiveness, fewer shots before the camera buffer fills.Ģ) A lossless-compressed format can save far more than even the bit packing mentioned above. In other words, Sony wastes about 9MB per image for no value or purpose at all. The Sony uncompressed raw format then stores these 14 bits in 16 bits, bloating the file by 14%. “And here are two key insights he shares about the new A7rII uncompressed RAW format:ġ) The Sony A7R II captures 14 bits per photosite. Her is what Sonyalpharumors and diglloyd have already stated: So finally Sonys fixing is only halfbaked not fully satisfying for me at least!!!! Why cant they implement this as well ? It seems for me that the hardware the processor engine is the reason…he is two weak and cheap! This is one of the worst parts in order to save money and use cheaper parts imo… Yes, I have personally abandoned the DNG format for a while now, but in this case it seems like it would be a good idea to Nasim important question to you!!!ĭoes the update fix also the “bad issue” of having only 12 bit files when shooting in silent and continous modes? I guess not and as other articles on the web already stated…. In summary, until Sony finds a way to losslessly compress its RAW files, you should convert to Adobe’s DNG format to potentially save a lot of disk space. Please note that the file sizes changed quite a bit when switching from embedding full-size JPEG images to medium-size JPEG images into DNG files – by up to 14 MB for a detailed scene. When there is not a lot going on (blue skies, empty areas), the compression is very impressive – even better than Sony’s lossy / compressed RAW! However, if you have a scene with a lot of detail (fine landscapes, etc), the lossless conversion to DNG still makes pretty big files, although they are quite a bit smaller still than Sony’s uncompressed. How much smaller? Take a look at this small table:Īs you can see, DNG conversion can bring a lot of benefits to Sony A7R II files. The good news is, this process will create a lossless compressed DNG file, which means that you will end up with a much smaller file. If you import your images into Lightroom, you can convert uncompressed RAW files to DNG upon import, or you can use the free Adobe DNG converter software before you start the import. If you do not like this, there is one workaround – to use Adobe’s DNG converter. And if you keep the original RAW file, it will also double your storage and backup requirements. First of all, file sizes in fact do look much bigger in comparison! Here is a short summary of Lossy / Compressed RAW vs Uncompressed: 43 MB vs 86 MB – the file size basically doubles! Ouch, that means not only slower write times to your memory card, but also twice less images to save on them too. ![]() Just a quick report for those who are wondering about the Sony A7R II file sizes and storage options after upgrading to firmware 2.00 and enabling uncompressed RAW. ![]()
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