Archive for the 'Tech' CategoryPosts relating to techie things Note: some of the features discussed on this page are more-easily handled via my Metadata-Viewer Preset Builder plugin. PrefaceAs I discussed in a previous post, Adobe's new photo-workflow application, Lightroom, has the sometimes-unpolished feature set one might expect in a "1.0" product. The main core functionality is great, more than I think one could expect from a "1.0" product, but it lacks a lot of user-customization abilities that you know will be added eventually, once the "to do" list of must-have features gets down to terrestrial levels. (Note: the technique discussed on this page does not work with [...] View full post » As I noted in my previous post, three weeks after having been officially announced, Adobe has released Lightroom Version 1.0 (a free 30-day trial can be downloaded from Adobe's Lightroom page). Especially considering it's only a "Version 1" product, Lightroom offers a lot of things that can be customized. The subject of this post is the list of image metadata shown by the Metadata Panel in Library mode. The metadata panel can show much more for an image than anyone's likely to want to see at one time -- over 100 items, such as its filename, the [...] View full post » After publishing my writeup on Digital Image Color Spaces four months ago, I got into a discussion on color spaces and photo-hosting sites with one Chris MacAskill on a forum at Digital Photograph Review. I didn't realize it until today, but it turns out that this Chris MacAskill guy is the president of the popular SmugMug photo-hosting site. Fast-forward a few months to earlier this week, and Chris posted his own comments on the Mac/OSX aspects of the issue. In just a few days, his post got over 100 comments, including some from the main players in this arena. [...]
During the three-month ordeal of autofocus problems with my Nikkor 70-200 f/2.8 zoom, between suspecting a problem and finally having it fixed by Nikon, I learned a lot about SLR autofocus -- how it works, and how best to test it. There are plenty of autofocus test charts available on the web, but all of them were severely deficient in one way or another, so I ended up making my own. Its development progressed over time as I tried different approaches, discarding what didn't work and refining what did. (The chart I used in November shows elements of [...] View full post » ( If you're not familiar with MySQL, this post will be of no interest. ) I like that MySQL has its replace command, which acts like an insert except that if the newly-inserted data would cause a conflict with one or more unique keys, one or more pre-existing rows are automatically deleteed to make way for the new data. However, it seems that most times that I want to use replace, I really want semantics along the lines of "update if already there; insert if not." The only difference is in the value given to unmentioned fields: [...]
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