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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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83
votes
15answers
5k 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 ...
30
votes
4answers
7k views

What software can show my most frequently used focal length?

Many people recommend a focal length of 35mm, 50mm, and sometimes even 85mm and upwards for those interested in purchasing a prime lens. I, however, would like to figure out what focal length(s) I use ...
24
votes
6answers
3k views

What tagging system do you use?

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 ...
23
votes
3answers
3k views

What photo-sharing websites expose camera serial numbers?

What websites expose the camera body serial numbers from the original image EXIF? Flickr is a photo sharing website that exposes lots of photo metadata (from the EXIF data) and even make it easy to ...
21
votes
4answers
528 views

Should I geotag the location of the subject or the photographer?

If I take a photo of a distant object with a zoom lens, and then geotag it manually, would it be more useful to tag the location of the distant object (what is seen in the photo) or the location from ...
20
votes
5answers
2k views

Is there an EXIF standard for tagging people in photographs?

There are a number of websites that let you tag people in photos, such as Facebook and now flickr, but is there an EXIF standard for tagging who is in a photo, and where they are?
20
votes
7answers
47k 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 ...
18
votes
4answers
2k views

Does the dpi number reported by camera in JPG have any meaning?

I have two cameras, a 6mpix Panasonic FZ8, and 14mpix Canon A2200. When I compare shots from two cameras, one of differences I notice is dpi number that camera reports in JPG info: FZ8 reports ...
18
votes
3answers
6k views

Is there a film scanner that can read the data from APS films and include it in the EXIF metadata?

I've a bunch of APS films that I'd like to scan but all the film scanners I've seen on the market today are 35mm scanners; and whilst some have little carriers to allow you to physically scan APS, ...
17
votes
8answers
20k views

How to shift EXIF date/time created by time in days, hours, minutes?

I have two camera bodies, I was shooting while on vacation, when I downloaded the photos to lightroom, one body was set to the correct date/time, the other was off by 722 days, 4 hours, 32 minutes. ...
17
votes
7answers
5k views

How should one best manage large collections of photographs?

With gigabytes of pictures accumulating over time, I'm wondering what systems (software, strategies, etc.) people are using to keep track of their collections? Let's say you remember a picture and you ...
17
votes
3answers
10k 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 ...
14
votes
6answers
2k views

Can digital cameras sign images to prove authenticity?

Beyond the metadata/EXIF/IPTC (which can be easily altered), is it possible to prove that an image is authentic? If this is not possible, how does a photojournalist prove the authenticity of an ...
14
votes
5answers
2k views

Fix photo timestamps?

I took a bunch of pictures, and when I loaded them onto my PC, I discovered the time on my camera was set incorrectly. Now this normally wouldn't be a problem...but I am combining pictures from ...
13
votes
1answer
11k views

Are there GIMP plugins that allow one to view and edit EXIF data?

Does anyone know if there is a plugin available for the GIMP that will let you view and edit all the EXIF information associated with an image?
12
votes
7answers
1k views

What useful things can/can't you find out from exif tags?

I'm aware that you can find out a lot from looking at the exif tags of an image, such as camera make/model and the various settings used to take the picture, but what non-obvious things can you ...
12
votes
2answers
763 views

Does a crop sensor affect closest focusing distance? Why does it not affect focal length in EXIF data?

Since I am considering to buy the Nikkor 105mm micro VR, I wondered if the cropped sensor does affect the closest focusing distance of 0.31m? Thinking about this, the following additional (and ...
12
votes
5answers
2k views

How to detect if a photo's metadata has been changed?

There was a photography contest and it was limited to only three days of shooting - but the winning photo seemed a little out of season. So I suspect that the winner changed the metadata on the ...
12
votes
5answers
3k views

How do I go about editing the metadata of a PNG file?

How do I go about editing the metadata of a PNG file? Is there some free software I can use? Thanks in advance.
11
votes
5answers
4k 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 ...
11
votes
4answers
2k views

What tool can visualize metadata from many photos on a Mac?

I have seen/heard about a PC/Unix (??) utility that goes through all your JPG/RAW pictures on your disk and shows you on a graph your most used lens, your most used zoom range, flash settings ...
11
votes
3answers
834 views

Lightroom Upgrade vs Lens Metadata

Adobe Photoshop Lightroom 4 supports new lenses compared to earlier versions. I was hoping that it would change some of my lenses from 'Unknown Lens' to a specific model, but it did not. Synchronizing ...
10
votes
4answers
368 views

Is it safe from a privacy and security point of view to display identifiable EXIF data on a public web site?

Whenever I compare the exif data displayed by Flickr or the data on Lightroom (3.4), I can't avoid getting my mind blown for the simple fact that I never come to a software tool (for windows) with a ...
9
votes
6answers
4k views

How can I create a map with GPS data from EXIF?

I've been taking photos all over the country last year and now I want to create a map with all the places I've been. Luckily all my photos are geotagged which makes the whole process easier. The main ...
9
votes
5answers
2k views

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

Does anyone know of such a thing? 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 ...
9
votes
4answers
492 views

What do you wish you knew about Lightroom keywords when you started?

Having been a very sporadic user of keywords, and not structuring them in any sort of manner, I am binning my current keywords and starting again. The areas I would like advice in are: Creating ...
9
votes
2answers
2k views

How can I export EXIF metadata from Apple Aperture?

I'm trying to export the EXIF metadata from my photo archives so that I can do some analysis of which focal lengths I use the most. Aperture has a "File --> Export --> Metadata..." option, but that ...
9
votes
2answers
6k views

How do I determine focus points in Adobe Lightroom?

Not sure if this is possible or not in Adobe Lightroom. I would like to see the focus points chosen by my Canon DSLR. I am guessing this is stored somewhere in the EXIF, but I'm not certain. I find ...
9
votes
3answers
277 views

What is the best practice for setting JPEG metadata for CC-BY-NC licensed pictures?

I want to publish my pictures with a CC-BY-NC license but I could not find a tutorial how store this information with my JPEG metadata. Is there a best practice? Do services like Flickr, Google+ or ...
8
votes
5answers
916 views

How much metadata do you add to your photos?

In Bridge CS5, I've been updating my photos' metadata and IPTC fields. There are a lot of fields available...How much of them do you typically fill out? I can tell I'd at least want to put in my name, ...
8
votes
6answers
4k views

What tools exist to remove metadata from photos?

Whenever I share my photographs, I also share lots of information that I do not want to pass on: specific camera model that the photo was taken with exposure time focal ratio ... How can I remove ...
8
votes
1answer
3k views

How does Photoshop/Lightroom get the Colour temperature of a Raw image?

I captured a Raw image using my Canon 450D. When imported this RAW(CR2) file into Lightroom and Photoshop CS5, it showed the Temperature as 4900 and White Balance setting - "As shot". When I checked ...
8
votes
9answers
930 views

What solution should I use for cataloging photos for private sharing?

I'm seeking a solution for cataloging many thousands of images. Each photo will be tagged and categorized to become searchable by a small group of private people. I've considered any combination with ...
8
votes
2answers
121 views

Is there a glossary of camera metadata terms?

I'm trying to learn to interpret my camera's metadata (Exif) tags (if "tags" is the right word) as they appear in Adobe Bridge. I'm seeing some terms I don't understand and I was wondering if there ...
8
votes
4answers
3k views

Adding data to an EXIF file

What is the easiest way to add data to an EXIF file? For example if I wanted to add a copyright to my images can that be easily added to the EXIF data?
7
votes
2answers
658 views

What are some reasons to not display EXIF data when sharing photos online?

I notice that some photographers choose to deliberately omit the information pertaining to how the photo was taken when sharing online. There's a communal value in learning how other folks staged a ...
7
votes
3answers
619 views

What are the most important EXIF data to display in photo-presentation software?

First of all, let me tell you one thing. I'm not a photographer and know nothing about photography. I'm a programmer making a software program for photographers, and I would like to know what are the ...
7
votes
4answers
580 views

Batch adjusting the date (but not the time) of photos imported into Lightroom?

I purchased a new camera during my vacation, but I managed to take a whole night worth of photos with the incorrect date. I purchased the camera July 18th, but managed to set June 18th as the date. ...
7
votes
5answers
1k views

Is there a way to synchronise JPEG metadata into RAW files in Lightroom?

I've shot RAW + JPEG for most of my photos, and have added quite a lot of metadata to the JPEGs using Windows Live Photo Gallery. I've mainly added keywords and people tags (thanks to the new face ...
7
votes
1answer
646 views

Is it possible to infer that an image is a photoshop if only one has “Original Transmission Reference” field?

If I have 2 similar images, can it be inferred as evidence that one is a photoshop of another if the first one has EXIF Original Transmission Reference field, while a second one does not? (the ...
7
votes
3answers
702 views

Where are in camera ratings on the Canon 5D MkIII stored?

The Canon 5D MkIII introduced a new featured that lets you rate images by using a dedicated rear button. I am interested in finding out where in the EXIF data that this rating is stored. I wasn't ...
7
votes
1answer
2k views

How to change camera model with exiftool?

I bought a Nikon D600 only to realise that Lightroom 4 can't read the RAW format that it shoots in. I've done some research and found that some people use the Exiftool to change the model and then ...
7
votes
5answers
2k views

Why employ the xmp sidecar file in Lightroom?

Currently I trust the catalog file to hold all of develop settings for my files. I don't use xmp/sidecar files. If you use them, why? I'm searching for a reason why I should use them.
6
votes
4answers
319 views

Can information like a signature, secret key or password be encoded in a photo?

I want to protect copyright of my photographs. So, I've decided I'd like to put some signature like information in my photos. According to my research, - I have copyright as default and I don't ...
6
votes
3answers
1k views

How does Lightroom store data about photos?

I've seen numerous mentions of Lightroom's database, or catalog, and having to back it up. Being used to Bridge and Camera Raw, I'm accustomed to seeing sidecar .xmp files alongside my RAW files. ...
6
votes
4answers
1k views

How can I tell if two pictures were taken with the same camera without metadata?

Is it possible to identify images (without exif data) and link them to the exact same camera? If so, I'd like some software recommendations to get the job done. I have two photos that I'd like to ...
6
votes
2answers
416 views

Why won't GIMP 2.8 open my long exposure shots?

I'm unable to edit some of my tripod and shutter release shots in GIMP 2.8.10. It only seems to affect the photos taken in bulb (full manual shutter timing) mode, where I have exposure times anywhere ...
6
votes
3answers
2k views

What's a good batch-mode EXIF data editor?

I'm currently scanning a lot of old slides. The scanner I use has this annoying habit of adding "My beautiul picture" in a description field in the EXIF format. I'd like to use an EXIF editor to get ...
6
votes
2answers
674 views

Why does Adobe Photoshop discard certain EXIF fields?

I'm shooting on a Canon EOS 5D. The images that come off the camera have some EXIF data (viewable in Irfanview), such as Camera Serial Number, Firmware Version, File Number, and Camera Temperature. ...
6
votes
1answer
4k 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. ...