aleyumo Posted January 16, 2017 Share #1 Posted January 16, 2017 (edited) Advertisement (gone after registration) Hi, everybody, I downloaded the v2.2 at the very beginning of January 2017. And I was much surprised when I saw on my iMac that the file downloaded was the size of 118.3 MB instead of 112.77 MB as declared on the Leica site. Then I was even more surprised when I found out that v2.2 and v2.0 are absolutely identical in sizes up to Byte: v2.2 has 118,253,056 Bytes (118.3 MB) and v2.0 has the same 118,253,056 Bytes (118.3 MB). The File unique identifier shows the differences in hashes, it can be explained by some corruption in one of files. I do not know how it can be that the declared by Leica the file v2.2 size of 112.77 MB turns into 118.3 MB under downloading, but I know that it can not be, ie if the size of a file you want to download is posted as 112.77 MB, it must be the same when being downloaded. So, I have two questions on this matter: 1) How to explain it that the Firmware v2.2 of the size of 112.77 MB,as declared by Leica, in reality turns into the file size of 118.3 MB, as being downloaded on the computer; 2) How to explain this odd coincidence in sizes up to Byte with two Firmwares: v2.2 and v2.0. As I mentioned above these both files have the same size: 118,253,056 Bytes. All that looks very suspicious and do not cause any trust to v2.2 posted on official Leica site for our downloading. Some of Leica local staff tried to convince me that the figure of 112.77 is equal to 118.3 and advised me to not pay much attention to this difference. But I know that the programming and computing are the very accurate matters based on the mathematical algorithms, that don't allow to play with numbers as one like and consider the numbers 112.77 and 118.3 as the same. My attempts to understand this case / issue with the us support team did not give me any result so far. Your thoughts on this case will be much appreciated as well as the info on how i can reach by email Mr.Oliver Caltner or Mr. Markus Limberger from Leica AG. Thank all of you in advance. Al ( aleyumo@gmail.com) Edited January 16, 2017 by aleyumo Quote Link to post Share on other sites More sharing options...
Advertisement Posted January 16, 2017 Posted January 16, 2017 Hi aleyumo, Take a look here Leica SL Firmware v2.2. I'm sure you'll find what you were looking for!
digitalfx Posted January 16, 2017 Share #2 Posted January 16, 2017 Do not worry about the difference...all files will be larger on disk. If you really need to know why Google it. But look at every file on your disk and you will find the same issue. The reason 2.0 and 2.2 are the same size is because they are very similar files. Quote Link to post Share on other sites More sharing options...
scott kirkpatrick Posted January 16, 2017 Share #3 Posted January 16, 2017 I see that firmware 1.2, 2.0 and 2.2 are all the same size and the size that you observe, when stored on my Mac. I have loaded each of them as they came out, and they all work properly. The constant size may be because there is a storage layout in the SL that was fixed initially, leaving room for the firmware code to grow. The difference between file sizes in different storage software environments is not something I worry about, as it may be a result of Leica using a Windows server or Unix server environment. I've seen such small differences in downloaded file sizes before. Anyway, the downloaded 2.2 has been working fine for many of us. scott Quote Link to post Share on other sites More sharing options...
pop Posted January 16, 2017 Share #4 Posted January 16, 2017 The problem lies with the unit "MB" which can stand for two quite different things. According to the more recent definition, 1MB equals to 1024*1024 Bytes. Leica uses this definition on their web site. The more "ancient" definition defines the upper case letter M as 1 million and, hence, the Megabyte as 1000*1000 Bytes. Hence, 112.77MB (the modern unit as used by Leica in this case) computes to 112.77*1024*1024 Bytes which is indeed close enough to the number you state. The article in the Wikipedia about Megabyte explains it in great detail: https://en.wikipedia.org/wiki/Megabyte 1 Quote Link to post Share on other sites More sharing options...
digitalfx Posted January 16, 2017 Share #5 Posted January 16, 2017 look at every file on your disk...this is not unique to Leica. Read this: http://www.howtogeek.com/180369/why-is-there-a-big-difference-between-size-and-size-on-disk/ Quote Link to post Share on other sites More sharing options...
Bill W Posted January 16, 2017 Share #6 Posted January 16, 2017 When I downloaded the file it was 118.3 MB and is still in my downloads. I updated my SL back in December and it was not an issue. Quote Link to post Share on other sites More sharing options...
ramarren Posted January 16, 2017 Share #7 Posted January 16, 2017 Advertisement (gone after registration) As above ... The two files do happen to be the exact same size, and not exactly what Leica's information claims. They install correctly so it's of no particular concern. Doing a binary comparison with cmp, they obviously contain significantly different data. Quote Link to post Share on other sites More sharing options...
aleyumo Posted January 17, 2017 Author Share #8 Posted January 17, 2017 (edited) PS. I’d like to add to my post about Leica SL Firmware v2.2, and it’s important, that all previous firmware files posted on Leica site for downloading and files on my iMac after downloading them from Leica site had been absolutely identical in sizes. Al Edited January 17, 2017 by aleyumo Quote Link to post Share on other sites More sharing options...
digitalfx Posted January 17, 2017 Share #9 Posted January 17, 2017 just curious...why does this matter? Quote Link to post Share on other sites More sharing options...
su25 Posted January 17, 2017 Share #10 Posted January 17, 2017 I downloaded and installed those files. My SL shows firmware as 2.2 - that is all that matters to me. Quote Link to post Share on other sites More sharing options...
profus Posted January 17, 2017 Share #11 Posted January 17, 2017 Hmm...I can not check it right now, but I am almost sure, that my DNG files are only about 45 Mb Must be I use compressed format or something...? Quote Link to post Share on other sites More sharing options...
pop Posted January 17, 2017 Share #12 Posted January 17, 2017 Hmm...I can not check it right now, but I am almost sure, that my DNG files are only about 45 Mb Must be I use compressed format or something...? The sizes mentioned above apply to the firmware for the camera, not to the image files it produces. 1 Quote Link to post Share on other sites More sharing options...
profus Posted January 17, 2017 Share #13 Posted January 17, 2017 The sizes mentioned above apply to the firmware for the camera, not to the image files it produces. Ups... i misread it completely! Tnx Quote Link to post Share on other sites More sharing options...
ramarren Posted January 17, 2017 Share #14 Posted January 17, 2017 PS. I’d like to add to my post about Leica SL Firmware v2.2, and it’s important, that all previous firmware files posted on Leica site for downloading and files on my iMac after downloading them from Leica site had been absolutely identical in sizes. Al This is true. But again, what does it matter if the file is what it says it is and installs correctly? Quote Link to post Share on other sites More sharing options...
Donzo98 Posted January 17, 2017 Share #15 Posted January 17, 2017 just curious...why does this matter? 100%... Finally someone asked the right question Quote Link to post Share on other sites More sharing options...
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