I’ve done a bit of experimentation and learned a few more keywords one can use to search for photos in flickr by their EXIF data. I have also gleaned the pattern that seems to have been used for coming up with the keywords. They appear to be abbreviations.
|xel||minimum exposure||EXIF exposure lower limit||seconds|
|xeh||maximum exposure||EXIF exposure higher limit||seconds|
|xfl||minimum focal length||EXIF focal length lower limit||milimeters|
|xfh||maximum focal length||EXIF focal length higher limit||milimeters|
|xal||minimum aperture||EXIF aperture lower limit||f-number|
|xah||maximum aperture||EXIF aperture higher limit||f-number|
Perhaps there’s a way to specify an exact
exposure, focal length, or aperture without having to use both the lower and higher limit keywords together. If so, I haven’t found it yet.
I also haven’t yet figured out how to specify fractional exposure times (shutter speeds of less than one second). It seems to treat all decimal values less than 1 as simply 0.
The text displayed above search results is not always correct. For example, when one uses xel
to search for photos taken with fractional exposure times (shutter speeds of less than 1 second), the text displayed above the search results incorrectly rounds the fractional exposure times down to 0
. Similarly, when one performs a search using xfl
independently, the wording displayed above the search results does not correctly reflect the way these keywords function. The words shorter
Obviously, not all of the kinks have been worked out. Maybe that’s why these keywords remain undocumented. I have started a discussion thread about this in the flickr ideas group
The most useful search parameter is CM= which allows you to search images by camera model. I think we should write script for flickr with all these parameters.
It looks like the xfl and xfl parameters are actually searching on 35mm-film-equivalent focal length.
So passing xfl=50&xfh=50 and expecting to get all the pictures you took at 50mm on your 1.5x crop-factor camera won't work; you'd have to pass xfl=75&xfh=75 instead (75 being the 35mm-film equivalent of 50 at 1.5x crop).
After thinking about this, it makes complete sense. But it confused the hell out of me at first; I couldn't figure out why my searches were returning nothing.
Thanks for the comment. Very useful information!
do you know of any other parameters? i'm specifically looking for the parameter relating to flash fired, yes or no. i have been making guesses but nothing seems to be following the above pattern
also it seems like a few years ago i saw some other info and codes out there but i'm not having any google luck.
Why dont you try Exif Photo Search?
Searches Flickr by EXIF data :)
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