Month: January 2012

Lightroom, File Management and Metadata

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Hi Folks:

This has been covered before on other sites (and to some extent on ours), but since I recently explained all of this to someone on Twitter I thought I’d take what I wrote then and massage it into some form of post for our blog.

To begin with we need to cover a few terms. One is that, as I mentioned in our Should I Get Lightroom or Photoshop or…? post, a digital image isn’t really an ‘image’ in the traditional sense. It starts as light, gets converted into electrical impulses by the camera’s sensor, and is then translated into binary code – 1s and 0s – as a digital file. Be that as it may, there are two aspects to each digital image. One is the image information itself – the code that is assembled to create the image on your computer screen or as a print, and the other is information about the image. This starts in the camera and can include the camera make/model/serial number, the exposure information, date and time of the image capture, the lens, focal length (for zoom lenses), GPS information and more. When the image is transferred to the computer one can add copyright information, keywords, owner contact information… All of this is collectively called ‘metadata’. This metadata is stored in one of two ways, depending on the type of digital image you’re working with. For .TIF, .PSD, .JPG and .DNG files, the metadata is stored within the image file itself. For raw images, a second file, often called a ‘sidecar’ file is generated. Sidecar files have an .XMP extension. Therefore, for a Canon raw file for example, one would have IMG0001.cr2 for the image data, and IMG0001.xmp for the metadata information.

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New Beginnings… and Old Memories…

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Hi Folks:

It’s now closing in on the end of January, so if you’re still maintaining your New Year’s resolutions, my congratulations to you!  It may be sheer coincidence that Remembrance Day and New Year’s Day fall so closely together on the calendar but our memories of the past and our dreams of the future always seem bound together.  It may be true that (as espoused by George Santayana), “Those who cannot remember the past are condemned to repeat it.”  It’s also true that much of how we see ourselves today is based on and built out of who we have believed ourselves to be and that person no longer exists.  It’s not just that your body is continuously refreshing itself – building new cells and removing old ones.  Our thoughts, ideas, understandings – in some ways the essence of who we are – is also different… unless of course we hang on tight to the past memories of who we used to be.  Memories can be pleasant or painful and there are varying degrees of both, but there’s one thing memories rarely are, and that’s an accurate recollection of the past as it happened.  My grandmother was a very wise woman with a Grade 5 education, and one of her sayings was, “No matter how thin the paper, there are two sides to every page.”  In some cases there are many more than two sides to an issue, more than two sides to a memory, but the point is made. Continue Reading →

You Like Me! You Really Like Me!!

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Hi Folks:

So far as I know, Facebook was the first to introduce the concept of the ‘Like’ button to user posts and comments, and it’s such a good idea that it’s been adopted by others as well. Google+ uses the ‘+1’ button instead, but it’s the same idea. The folks at TED.com used to give users the ability to up vote or down vote another user’s comments, but they changed that policy so that only up votes are possible. The people at 50opx.com have both ‘Like’ and ‘Dislike’ buttons on the images displayed there; I suggested to them that they remove the ‘Dislike’ button but the choice is of course theirs.

Why is this so important? Well, in a pre-internet world (yes, I’m old enough to remember such a time), personal interactions were less frequent and more intimate. People waited days, weeks, even months sometimes to hear from a friend or loved one, and as such contacts were treasured. People exchanged long notes, thank you cards and more. Today we live in a much different world. Long letters are hardly ever written, thank you cards are almost forgotten, and even e-mail has become passé, especially among the younger generation. We’re swamped with ever more information, almost all of it short and almost all of it impersonal. The internet is largely considered anonymous and while on one hand that gives people the freedom to express their ‘true’ feelings behind that mask of anonymity it also distances the connections we have with those who are close to us in different ways. Internet friendships can be as strong as any ‘personal’ relationship, but without being face to face we lack inflection, touch and more. Apparently studies have shown that people are more likely to ‘trust’ links that their friends have ‘liked’, but I think it’s much more than that.

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