Before the rush

Before the rush
by evan-pak

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Someone referred me once to Exposure Plot. This is a free Windows utility which is very simple. It shows you graphs of different parameters, one of them being focal-length. If you already use image management application like Lightroom or Bibble Pro, then you can also usually see that data in the filter interface. For Lightroom for example, you need to ...


I know of Exposure Plot ExposurePlot on PC, it's pretty nice and free. Is your question that you are looking for one on Mac? Someone asked in DPReview forum but not much came out of it. Someone elsewhere is using Parallels Desktop to run a Windows XP virtual machine and use Exposure Plot from it.


I believe ExifTool can be used to produce this kind of analysis, but it requires some technical command-line knowledge. For example, see this:


For Lightroom users, Jeffrey Friedl's Data Plot plugin is great... What's nice about that is being able to filter your photos in Lightroom, keepers, 5 star rated, certain lenses, whatever, then seeing the focal lengths for just those photos.


The high reject rate for reviews tends to be down to them wanting a lens that is perfect for the test body they use. The tolerances for lenses and bodies can either add up to something unacceptable or cancel each other out. For instance if a lens is at one end of a tolerance limit and the camera body is also slightly out in the same direction this ends up ...


"Aperture Inspector" extracts this information from an Apple Aperture library.


Assuming that: The focal length has been recorded in the file metadata You are running a Unix-like OS such as Linux or OS X (or Cygwin in Windows) You have installed the exif command line tool Run this on the command line: exif /path/to/your/photos/* | grep "Focal Length [^A-Za-z]*|" \ | awk -F "|" '{print $2}' | awk '{print $1}' | sort | uniq -c | ...


If you're using Lightroom, then Lightroom Analytics is a tremendously useful tool to analyse your settings in camera and lightroom. It's all exported as a spreadsheet and can also be viewed in the included web browser based viewer.


I've used Aperture's Smart Albums to get this information out, but you'll only get one data point at a time, so it can be a slow process if you want detailed stats. You can make Smart Albums that search for photos by any of the EXIF/IPTC data (camera body, lens, focal length, aperture, shutter speed, iso, ...) and see how many photos match the search.


It's not a program specifically for that purpose, but Adobe Photoshop Lightroom allows for filtering by various bits of info including lens model, focal length, and so on. It will allow you to see the number of photos for a particular bit of information although it's not presented graphically.

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