ExifTool Forum

ExifTool => Newbies => Topic started by: AL10 on March 18, 2018, 07:38:13 PM

Title: Exiftool returns "Warning"
Post by: AL10 on March 18, 2018, 07:38:13 PM
I've recently ran the exiftool on an image from a camera model I've never worked with before and the exiftool returned the following:

Warning                         : [minor] Possibly incorrect maker notes offsets (fix by 4124?)
Warning                         : [minor] Suspicious MakerNotes offset for Sony_0x9401

Can anyone confirm what this means?
Title: Re: Exiftool returns "Warning"
Post by: Phil Harvey on March 18, 2018, 08:16:36 PM
This is explained in FAQ 15 (https://exiftool.org/faq.html#Q15).

- Phil
Title: Re: Exiftool returns "Warning"
Post by: AL10 on March 19, 2018, 03:25:43 AM
Thanks Phil. I'm a bit confused because when I look at what came up with exiftool I see:

File Source                     : Digital Camera
Scene Type                      : Directly photographed

This, along with a few other hints in the metadata tells me that the files are right from the camera, yet the link you sent me says that incorrect makernote warnings come up when an image is rewritten by software. I'm trying to figure out if this file truly came right from the camera, but it seems like getting the makernote warning tells me that it was saved in a software which is why these warnings came up. So its safe to assume this was saved over? Or does the makernote not necessarily mean that?

I've attached what the exiftool returned to this message.
Title: Re: Exiftool returns "Warning"
Post by: Alan Clifford on March 19, 2018, 03:34:20 AM
There are these two lines in that file:

Processing Software             : Windows Photo Editor 10.0.10011.16384
Software                        : Windows Photo Editor 10.0.10011.16384
Title: Re: Exiftool returns "Warning"
Post by: AL10 on March 19, 2018, 05:51:59 PM
Processing Software             : Windows Photo Editor 10.0.10011.16384
Software                        : Windows Photo Editor 10.0.10011.16384


How did you find out these were the lines? 

More importantly, regarding my last question: "It seems like getting the makernote warning tells me that it was saved in a software package which is why these warnings came up. So its safe to assume this file was saved over? Or does the makernote not necessarily mean that?
Title: Re: Exiftool returns "Warning"
Post by: Phil Harvey on March 19, 2018, 06:07:25 PM
Most of the time a makernote error like this means that the file was rewritten, but not always.  Things like the Software tag being updated or the addition of tags like Padding or OffsetSchema are more positive indications.

- Phil
Title: Re: Exiftool returns "Warning"
Post by: Alan Clifford on March 21, 2018, 03:47:53 PM
Quote from: AL10 on March 19, 2018, 05:51:59 PM
Processing Software             : Windows Photo Editor 10.0.10011.16384
Software                        : Windows Photo Editor 10.0.10011.16384


How did you find out these were the lines? 

More importantly, regarding my last question: "It seems like getting the makernote warning tells me that it was saved in a software package which is why these warnings came up. So its safe to assume this file was saved over? Or does the makernote not necessarily mean that?

I just looked in the file you sent.  I would conclude that Windows Photo Editor has been used.