The alpha shutter count tool |
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sybersitizen ![]() Senior Member ![]() Joined: 04 August 2006 Country: United States Location: California Status: Offline Posts: 14428 |
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Not a good example. If a camera was serviced, the internal counter may have been reset by a tech.
Not a good example if you only think that and are not sure. If it has only turned over once, the count could be exactly correct when also considering multiple actuations that are recorded with HDR, Multi-Frame NR, Hand-Held Twilight, and panorama shots. |
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mike77 ![]() Senior Member ![]() Joined: 26 February 2011 Country: Austria Status: Offline Posts: 621 |
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Results looks reasonable:
Detected Camera model : SLT-A99V | | | | Sony_Tag9050_0x0032 = 92 | | | | Sony_Tag9050_0x0033 = 3 | | | | Sony_Tag9050_0x0034 = 0 (65536 * 0) + (256 * 3) + 92 = 860 |
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A99, NEX-C3, HVL-F43M, more than enough glass (A, E, M42, MD)
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Micholand ![]() Admin Group ![]() Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 16694 |
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Borut, please list the SonyTags identified till now in the maker notes of the other Alpha cameras! Thx!
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Tricky01 ![]() Senior Member ![]() Joined: 08 September 2010 Country: United Kingdom Location: Woodley, Berks. Status: Offline Posts: 3184 |
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Hi gents. I also was having the same problem but it seems - for me with aperture 3 at least - the 'export original raw file' option, despite being an .arw file, doesn't work. I don't know what Aperture is doing to the EXIF (if anything), but that seemed to be a weak link. When I then tracked down some straight from body (in fact tethered) A900 JPEGs, everything came out roughly as I thought. One has had slightly more mileage than I was expecting (24k) while the other about right at (14k). Are you using files straight from the memory card/tethered camera or are they stored in some software and extracted from there? May well not be the same problem at all, but hopefully helpful to someone reading through this. |
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web
A9, A7Riii, A7R (full spectrum) 12f2.8, 15f2, 16-35f4, tam28-200, 35f1.8, 50 1.8, 85f1.8, 90f2.8, 135GM, 100-400GM, 200-600G, 1.4xTC // A: Sig 90f2.8 & 180f3.5 |
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Guy ![]() Senior Member ![]() Joined: 29 July 2011 Country: Slovenia Status: Offline Posts: 245 |
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Hello all again!
Yes, there are some problems with the tool, as I only threw it together more or less as a proof of concept. To get a result, you must provide an ORIGINAL RAW, CRAW or JPEG directly from the camera. Like some of you discovered, practically any software for importing/exporting/whatever will destroy this part of the exif. If you provide a link, make sure to provide the link to the file itself (A usual problem is with flick when you provide a link to the html file which shows your image. I will provide instructions on how to do it correctly later). The fields for the cameras so far:
Instructions on how to manually check this are available in this post. I also developed a small python script which with the help of exiftool finds all the suspect fields in sequential files. With this I think it is possible to quickly identify correct fields. I would also like to ask people who have cameras with replaced shutters/mirror mechanisms to provide an original file from before and after the service. I am quite sure that this information is stored in the makernotes, and I have a feeling that I know where (but I have no such files on hand)! Regards, Borut mod edit: typo in SonyTags of A900 corrected Edited by Micholand - 17 April 2013 at 18:30 |
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When you have to shoot, shoot, don't talk!
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Pigman ![]() Newbie ![]() Joined: 15 April 2013 Country: United Kingdom Location: Devon Status: Offline Posts: 6 |
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Thanks for your efforts to provide this tool, but it doesn't seem to work for me. First I used the manual method using exiftool on 5 different files from my A900 and A850. Using exiftool manually I got sensible results.
When I used your tool on the same files I got shutter count of 0 (zero) from both cameras. When I use exiftool manually, I am using the formula SUM = A + (B * 256) + (C * 65536) to give me shutter count. Is this correct? Also, I don't understand the formula SUM = (C << 16) + (B << 8) + A. What does the << mean? Edited by Micholand - 17 April 2013 at 18:31 |
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ricardovaste ![]() Senior Member ![]() Joined: 08 August 2007 Country: United Kingdom Location: Shropshire Status: Offline Posts: 10076 |
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Just tried an original file from the camera, not imported/downloaded... still getting the same result :(. I will try a JPEG maybe...
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I photograph the moments in people's lives that mean the most to them: Richard Harris Photography
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ricardovaste ![]() Senior Member ![]() Joined: 08 August 2007 Country: United Kingdom Location: Shropshire Status: Offline Posts: 10076 |
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Worked with a JPEG, yay! My "old" a900 is only at 31K as well, which makes me feel good, loads of life left in it yet :)
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I photograph the moments in people's lives that mean the most to them: Richard Harris Photography
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Jocelynne ![]() Senior Member ![]() Joined: 17 June 2009 Location: United States Status: Offline Posts: 2819 |
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Thanks, all. Appreciated.
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Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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Guy ![]() Senior Member ![]() Joined: 29 July 2011 Country: Slovenia Status: Offline Posts: 245 |
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Added support for A77.
It uses the same tags as the A99. If someone has a file that does not work, but it should (especially if it works manually), I would appreciate if you could upload it somewhere so that I could test. And to answer: The C << 16 and B << 8 are programming terms, it means that the value of C is shifted by 16 bits to the left and B 8 bits to the left. ![]() It's basically the same as the regular equation. Edited by Guy - 17 April 2013 at 11:39 |
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When you have to shoot, shoot, don't talk!
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rhae ![]() Newbie ![]() Joined: 17 April 2013 Status: Offline Posts: 1 |
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I compared 2 pictures of the A77 and I'm shure that the counter data is at Sony_Tag9050_0x0032-35:
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Pigman ![]() Newbie ![]() Joined: 15 April 2013 Country: United Kingdom Location: Devon Status: Offline Posts: 6 |
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OK, I have 5 files, 3 from A900 and 2 from A850. Where would you like them uploaded?
Thanks for your response. Now they make perfect sense. Presumably the values for a, b and c are stored in 3 8bit bytes. Anyway, I guess it's OK to use the simple mathematical formula. |
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Guy ![]() Senior Member ![]() Joined: 29 July 2011 Country: Slovenia Status: Offline Posts: 245 |
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I would appreciate that!
Use http://tools.science.si/perm/index.php to upload the files permanently. This script is identical, it just leaves the uploaded files in the temporary folder. Also, added 560 and 580, BUT there are two suspected counters in the EXIF. One field is the same as the A55/A33, but there is another set of bytes just a couple bytes away, that increases in the same manner, but the number is completely different. Any input on this is appreciated! Regards, Borut |
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When you have to shoot, shoot, don't talk!
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Pigman ![]() Newbie ![]() Joined: 15 April 2013 Country: United Kingdom Location: Devon Status: Offline Posts: 6 |
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OK, have uploaded one file from my A850, which gives a shutter count of about 6400 according to manual method on exiftool. (maybe 6402, but I don't have the scrap of paper I wrote it on). Am in process of uploading a second file from A850, maybe with an extra 26 or so shots on it, but it takes nearly 10 minutes to upload each file. I have to go out for a while, so will upload three files from my A900 later on this afternoon. |
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