Questions tagged [metadata]

Metadata is additional data related to a photo, this is usually written by the camera into the image file at the time of shooting but can be edited later. This metadata includes information such as the time and date of shooting, equipment involved and settings used.

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6
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2answers
656 views

How do XMP files encode aperture?

When I open a Lightroom XMP file, I read this odd line (the photo has been taken at f/8.0, all tools agree with that) exif:ApertureValue="6/1" Apparently, 6/1 means f/8.0, but where is this ...
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1answer
107 views

Exif & TIFF dates - why would they be months different?

A property management company is using my photos for the second time without permission. They said it was an honest mistake the second time. So I asked for proof and samples of the images they ...
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2answers
761 views

Is it possible to extract the IPTC information of many scans programmatically?

I have several hundred jpeg-scans of negatives. For some of these, I stored a textual description of the picture in the Caption-field of the IPTC metadata. (Whether it was a clever idea to store it ...
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11answers
86k views

Is there a free program to (batch) change photo file's date to match EXIF?

I want to specify a directory and have the software find all the photos in the directory and its sub-directories, and if they contain EXIF date/time, it sets their filesystem timestamp to match the ...
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2answers
648 views

How do I find raw files corresponding to selected JPEGS

I shoot RAW + JPEG on fujifilm cameras and 90% of the time I'm fully content with my jpeg images but a few could use some editing. To save time I would like to cull my photos into three categories: ...
2
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1answer
61 views

How to embed an ID in Pixel 3a EXIF data?

My wife and I both use Pixel3a phones so we are not always sure which one took which photo. Is it possible to embed some information into the exif data on one camera for use later as id. thanks
4
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1answer
354 views

How to retrieve tags from “Amazon Photos”?

I recently subscribed to Amazon Prime, which allows me to use Amazon Drive / Amazon Photos. With it, I can upload and store all my images, RAW files included. I was surprised to see that Amazon ...
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1answer
83 views

Using exiftool to import date, gps and tags from xmp files

Not sure if this can be achieved with exiftool or if there's a better alternative... I've exported a big amount of pictures from iPhoto and apparently apple exports original file with a sidecar XMP ...
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0answers
23 views

Problems with “Creation Date” Metadata in Lightroom not reflecting in Finder

I have spent the winter break scanning photos as .tif files. Then, in Lighroom, I have corrected the capture time to the appropriate date. This looks about right, with the photo taken on the 1st of ...
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2answers
116 views

Calculate original resolution an image was taken at from EXIF data?

I have a resized JPG of a photo that still contains the original EXIF data. How can I calculate the original resolution (in pixels) the camera was set to when this photo was taken? In the EXIF, I see ...
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2answers
3k views

How do I see an image comment added on a Nikon camera once I download a picture?

I have a Nikon D3200 and I have used the setting to add an image comment to my photographs. But, when I download the pictures to my computer (mac) and look at the photo info I don't see it. Have I ...
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2answers
2k views

How to copy EXIF metadata on Android from one photo to another?

I'm looking for a way to copy some (say date, location, camera) or all EXIF metadata from one image to another image on Android, so I can restore metadata deleted by some photo editing apps. I ...
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4answers
10k views

Can EXIF data be copied completely from one image to another?

My tools are usually Photoshop and EXIF Pilot, and I know how to export to XMP and import, but I was told that the full EXIF does not copy from one image to another. Is this true? This is my EXIF ...
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4answers
4k views

How can I incrementally date photos?

I have a collection of photos that have no date information. They have no Exif data, and the file modification dates are all identical. The only sequence is in the file name: image-0001.jpg, image-...
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3answers
3k views

Which EXIF tag to set for the 35mm equivalent focal length?

For a manual lens (*Rokinon 8mm f/3.5 Fisheye) I want to add the focal length information to the EXIF metadata in the resulting pictures with exiftool. I use the lens on a Canon 60D body. Obviously I ...
6
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2answers
2k views

What is the correct, standard EXIF metadata to add for Rokinon 8mm fisheye lenses?

I own a Rokinon 8mm Ultra Wide Angle f/3.5 Fisheye Lens for Canon EF Mount. This is a manual lens not electrically connect to the Canon 60D body I use it with. With exiftool I want to add the correct ...
8
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2answers
3k views

How to edit the shutter speed value in metadata?

I found ExifTool, which allows you to edit almost any piece of metadata from the command line. However if you try to edit the shutter speed (using exiftool file.tif -shutterspeed=1/200), it simply ...
8
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2answers
10k views

How to add EXIF Lens data in Lightroom for unknown lens?

One of my prime lenses is non-electronic and so the photos EXIF data does not include any lens information. These show up in Lightroom 4.3 as "Unknown". I see no way through Lightroom to add this ...
10
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1answer
14k views

What is the “Image Unique ID” EXIF field?

What is the Image Unique ID in Exif info? what is it used for?! It seems each system could use its own method, so is it still unique between different systems? Searching online I was able to find ...
21
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5answers
21k views

Is there any software which will set the EXIF Dates based on the file's modification date?

I have been using Exifer for many years to re-date and re-name my photos based on the EXIF dates from the camera(s). I have now started using some alternative camera apps available on the iPhone (...
7
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2answers
9k views

Is “Date Taken” Exif data possible on .PNG file, and is it possible to copy “Date Modified” to “Date Taken”?

I want to change the Exif data for some .PNG files so that they have the "Date Taken" tag. Is it possible to use that tag on .PNG files? Is it possible to copy the "Date Modified" date to the "Date ...
9
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1answer
8k views

Does embedding an ICC profile into an image actually embed the entirety of that profile into an image?

This is very much a imaging question, but Photography looked like the best site to ask. I've been reading information about ICC, color spaces, JPEG metadata, and the like trying to understand this. ...
2
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1answer
4k views

How can I batch add keywords (metadata) to JPGs, with matching?

I have a weird situation in on my hands and hope to find some direction/hints... The ultimate goal is to have a Lightroom catalog with about 30 000 keyworded images in it. The images are all JPEG, ...
0
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1answer
131 views

Can anyone tell me which cameras populate sub-second EXIF information?

I see the EXIF standard has a SubsecTimeOriginal field, but the sample photos I've tried looking at don't seem to have populated the field. Or maybe the tooling I'm using (GIMP, exiftool, PHP's ...
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1answer
123 views

Why doesn't Lightroom load files after I've changed their camera model metadata using EXIFTOOL?

I shoot with Fuji (.RAF). I am currently having issues in changing camera model on Mac. I tried using the command line exiftool -Model="..." <filename>.raf It says the file was updated, but ...
10
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2answers
10k views

When is each of these EXIF date & time variables created, and in what circumstances do they change?

Analyzing various EXIF data, one noticed there are several date and time data inside. [File] from what I understand is system data, just displayed there for convenience, not really part of EXIF data (...
3
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4answers
385 views

Is there a digital camera that is able to save people bounding boxes?

I am looking for digital cameras that are able to recognize faces(automatically or by user input) and save those as tags in XMP using either Microsoft Photo 1.2 Schema or Metadata Working Group - ...
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5answers
2k views

Picture Metadata and Face Tags: What Software to Write and Read them?

These past three days were a nightmare to me as I was trying to find THE way to store picture metadata for my 5000 photo archive the correct way. Since I read this great blog post from Carl Seibert I ...
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2answers
88 views

How can I rename Image with modified date and overwrite filename with number count using Jhead Tool?

A quick question... (Edited) Year/Month/Day-Filename-001.jpg jhead -n%Y%m%d [(name)] 001 .jpg (Not sure which options lets me create a filename after the year/month/day option in the usage ...
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4answers
133 views

Where to store scene label information about a photo (e.g., “nature”, “cat”, etc.)?

I want to tag some images. I'm wondering which is the right place in the EXIF to store specific information about the scene. For example: Cat, Nature, etc.
0
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2answers
135 views

What is the proper formatting of the Subject Tag in XMP?

My intention is to assign tags to each image based on the content in the image.For example This image can be be assigned tags Tulips,Flower etc So can i assign subject like tulips,flower and so on ...
8
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3answers
22k views

Is there a free piece of software that will export metadata for a folder full of images to a table?

I have hundreds of thousands of images in a set of about 50 folders, each of the folders has a varying number of subfolders. I'd like to extract certain pieces of metadata (latitude/longitude, data/...
2
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2answers
3k views

How to extract depth information from JPEG files?

Some mobile phones support changing the depth of field using depth information calculated from dual cameras. If the depth information is stored in the jpg file, how can it be extracted?
24
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7answers
92k views

How can I get the shutter actuation count for Canon EOS 500D/550D?

How can I get the actual shutter actuation count for a Canon EOS 500D or 550D (Digital Rebel T1i or T2i)? Two popular solutions for most earlier Canon cameras don't work: I peeked at location 0x9d-...
2
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2answers
219 views

Is editing metadata of a JPEG destructive to the image?

Is editing metadata of a JPEG destructive to the image? If I edit "File Info" > "Description" in Photoshop, then save.... am I causing the same image degradation as if I edited the image, then re save ...
2
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3answers
176 views

Why does Lightroom show the focal length of the Sony RX10 IV as 220mm, when it's marketed as 600mm?

I have a Sony RX 10 IV. I used maximum zoom, 600mm, but when editing in Lightroom in the details it gives the focal length of 220mm. Can anyone explain, please?
2
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1answer
72 views

Can I transfer location from my GPS receiver to a Nikon camera via Bluetooth?

Is it possible to send location information (lat. and lon.) from a Bluetooth-equipped Garmin GPSMAP 64ST GPS receiver to a Bluetooth-quipped Nikon camera? If so, how? Thanks for the “track, time” ...
5
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2answers
2k views

How can I find out which camera mode I used for a digital photo?

I have a Canon 450D, when I want more information on what setting I used to take a photo, I can hit the display button and see that I took that particular picture in Auto Mode or TV Mode etc. Once I ...
7
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4answers
442 views

Is it possible to make a photo's EXIF look like it was taken with a DSLR?

My teacher doesn't want me to use my mirrorless camera to take pictures, she only wants DSLR. She wants me to rent one (which costs money). I'm obviously not going to do that lol! My mirrorless has a ...
30
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4answers
6k views

What tagging system do you use? [closed]

What tagging system do you use for your photo collection? I ask because tagging is the only way I can make sense of my large photo collection and I am trying to improve the effectiveness of my photo ...
3
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5answers
1k views

Is there a way to figure out a lamp's color temperature from a photo?

Let's say we have some incandescent, flourescent, luminescent lamps and LEDs, and there are photos made with different cameras in auto mode with each of these lamps on, and with a white sheet of ...
19
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14answers
4k views

What are ways to record who took the pictures if a camera is used by multiple people?

My wife and I both like to go out photographing. We usually have only one DSLR/MILC with us, so we take turns in taking pictures. (Rarely, if we have multiple cameras at hand, they usually have ...
2
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0answers
232 views

What EXIF fields are commonly populated and don't vary shot-to-shot on photos from the same camera?

For programmatic reasons I'd like to be able to group photos taken by a photographer using multiple cameras on a given day by the camera. I'm thinking make, model, & software. Though it's very ...
1
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5answers
284 views

How does PPI relate to DPI in photo metadata?

I have been asked to provide pictures in JPEG format at a resolution of 300DPI. My computer give me a picture sizes in kilobytes and Photoscape the photo editing package that I use, converts ...
1
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2answers
75 views

Add Geotags to photos from GPX track [duplicate]

What's the best way to add geotags to photos if I have a GPX file with my location track? I don't have lightroom and I'm on a Mac.
18
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4answers
15k views

How can you write/convert Picasa's People tags to the EXIF data?

I use Lightroom for my workflow, and I tag photos with people's names so that I can find them faster. Since Lightroom doesn't have the "Faces" feature, I want to use Picasa's People feature for this ...
1
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1answer
87 views

Why does device listed in metadata change on photo transfer?

What are the reasons that a photo would have the wrong 'Device used' and 'software in use' metadata on a photo. The photo that was checked was not the provenance picture and so it is a copy of the ...
20
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6answers
17k views

Ways to edit metadata of a PNG file?

How can I edit metadata of a PNG file? Is there some free software I can use?
3
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3answers
751 views

iPad photo editing app that exports edits as XMP to reuse in lightroom?

Basically, I'm looking for Lightroom for iPad :) but until then, I'm trying to find an alternative. To organize and tag pictures I'll be using Photosmith which integrates with Lightroom. Now, I ...
110
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18answers
8k views

How can I better organise and file my photos?

At present I meticulously add metadata as EXIF tags to my photos using Microsoft Pro Photo Tools, which also lets me place them accurately on a map. The thing is I tend to leave photos in a folder ...

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