For the past two months, I’ve been working on a plug-in to verify image files in Lightroom. The plugin works by computing a hash for each file which can be thought of as a digital fingerprint. As long as the image is unchanged (i.e., the file is still ok) the hash value will also remain the same. If the image file becomes damaged or corrupted, the fingerprint will change and plugin can identify this by comparing the hash to a previously stored value.

The plugin is now available as a beta and you learn more about it here:

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Numbers behind a stock photo and print business

by Stephen on January 6, 2013

In the spirit of Harper’s Index here are some random facts about my photo business:

Largest number of prints in a single order: 11
Largest number of images licensed in a single transaction: 12
Biggest reproduction made from my work: 8′x25′ (400 sq. feet)
Biggest license: $5,840
Biggest license for a single image: $1,400
Smallest sale by a distributor: $27
Largest sale by a distributor: $350
Number of images on my website: 6,890
Number of images in my library: 32,097
Lines of Perl code to generate/maintain website: 2,452
Lines of PHP code to generate/maintain website: 1,683
Size of MySQL database: 4.1 MB
Number of MySQL records: 16,132
Number of hard drives in active use: 23
Total hard drive storage: 22TB
Number of data backups: 4x
Number of business related files (including images): 439,543
Total space taken: 1.54 TB
Number of submissions to the copyright office: 27
Cost of business license: $38
Cost of insurance: $547

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Creating Photo Books in iBooks Author

October 2, 2012

Last fall I visited the city of Prague in the Czech Republic and spent a week photographing historical and cultural sites. With several thousand pictures’ worth of raw material, my wife and I decided to co-author a coffee table-type book that showcased the city through photographs. I previously authored a photographic book of Los Angeles [...]

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Swimming with Crocodiles in Tortuguero

September 5, 2012

During my trip to Costa Rica, I visited Tortuguero village, a very small community in the park that survives on eco-tourism. The entire area is undeveloped (there are no roads) and I traveled to the village by boat with our local guide. To my great surprise, as we pulled into the docks we saw many [...]

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Shooting Handheld Panoramas

May 8, 2012

I love to take panoramic images and when I’ve planned a specific shot I will carry all of the gear: a heavy tripod, leveling base, panorama head with nodal slide, etc. However, many times, especially when traveling in foreign countries, bringing all of this equipment is infeasible because it weighs too much or takes up [...]

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Canon 70-200mm f/4 L IS Lens Review

August 19, 2011

I’ve had this lens for several years but only recently decided to test it formally so that I could compare it with my 70-300 f/4-5.6 L lens. During this time, I shot thousands of travel images and it was one of my most used lenses during my trip to Bhutan. The lens’s fast autofocus, constant [...]

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Canon 70-300mm f/4-5.6 L IS Lens Review

August 16, 2011

When I first heard that Canon was going to release a new 70-300mm zoom lens, I wasn’t very excited as Canon already had a number of zooms covering this range. When I heard that Canon was going to price it at $1600 for a variable aperture lens (f/4-5.6) I thought they were completely nuts. Up [...]

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Bhutan Travel Itinerary

May 14, 2011

This is a short summary of our trip to Bhutan which we visited from September 29th to October 10th in 2009. We departed from San Francisco and flew through Narita to Bangkok where we stayed overnight (more like a few hours). From Bangkok we flew Druk Air to Paro. We used Village Treks and Tours [...]

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Gitzo GT3541LS Carbon Fiber Tripod

May 6, 2011

I’ve been using the tripod for over a year now and it has become my main support system. It’s very sturdy and can hold whatever load I’ve thrown at it, but it’s not so heavy that I can’t hike significant distances with it. It’s also tall enough so that I don’t need to crouch over [...]

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Acratech Leveling Base

April 25, 2011

The Acratech leveling base is designed to make leveling the top of your tripod extremely easy and quick. The base has a ball and socket mechanism so that you can tilt it several degrees in any direction to compensate for uneven ground without having to make minute adjustments to the tripod legs. You might be [...]

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