D600 Shutter Count Mystery--Or Not
So I purchased a refurbished D600 through Adorama several weeks ago and so far I'm very happy with the camera. However, I'm somewhat puzzled as to the actual shutter count. This evening I shot a jpeg image and uploaded it to nikonshuttercount.com. The shutter count came back as 1320 actuations. But for that same jpeg the camera assigned a file number of 3526. I checked my d7 custom setting for file number sequence and confirmed that it was set to "On" (the default, and also my personal choice) . To refresh your memory, the "On" option for this setting means the following (taken from page 230 of the D600 user's manual):
"When a new folder is created, the memory card formatted, or a new memory card inserted in the camera, file numbering continues from the last number used or from the largest file number in the current folder, whichever is higher. If the photograph is taken when the current folder contains a photograph numbered 9999, a new folder will be created automatically and the file numbering will begin again from 0001".
In plain English, I interpret this to mean that as long as I inserted an empty SD card into the camera (which I did from day one), the file numbering should continue until it reaches 9999, at which time it will roll over to 0001. And, during this initial 9999 photos, the file number should equal the number of shutter actuations. So how does one explain the discrepancy of 2200 actuations?
My theory is that this refurb had its shutter replaced 1320 actuations ago, and the file number is based on the number of photographs taken as recorded in the camera's internal memory, which includes the actuations from both the old and new shutter. Let me be clear that the actual discrepancy isn't an issue to me; I'm just trying to wrap my head around the "why" of it. What say the rest of you? Am I on track or off base?
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#1. "RE: D600 Shutter Count Mystery--Or Not" | In response to Reply # 0ron917 Nikonian since 14th Dec 2012Mon 14-Oct-13 09:20 PM | edited Mon 14-Oct-13 09:24 PM by ron917
My guess: When Nikon tested the camera during during the refurb process, they used a card that already had files on it. The camera took the last number on that card and added 1 for the next shot.
I had similar shutter count/file number mismatches on my refurb D600 when I bought it - 17 actuations vs. over 250 for the file number. And again after sending it in for repair (spots, of course). They replaced the shutter but did not reset the actuation count, it came back 25 higher than when I sent it in but the file number was about 1200 higher.
I thought about how I might get the numbers to sync up, but then decided that was just OCD and not really necessary.
#2. "RE: D600 Shutter Count Mystery--Or Not" | In response to Reply # 0
I know from experience Nikon does NOT 'reset' the shutter count when replacing a shutter.
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#3. "RE: D600 Shutter Count Mystery--Or Not" | In response to Reply # 0
The shutter count and file number are completely independent of each other. There are many ways to manipulate the file number; its value should be given no significance. I reset the file number back to 1 after every shoot.
The possibility of Nikon putting a used card into your camera could certainly mess with any previous numbering you had.
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