Imaging

How-To: Sprocket Hole Photos

How-To: Sprocket Hole Photos

With digital photography as the most prevalent method of capturing pictures these days, nothing says nostalgia like these 35mm panoramas that are captured over the entire height of the negative. In this excellent Instructable by Darin Barry, you’ll learn how to hack a cheap medium format camera to expose your image so that it bleeds […]

DIY Projection Screen Paint Tests

DIY Projection Screen Paint Tests

Movie theater and other high quality screens are often surfaced with tiny glass beads to provide high “screen gain,” which is a measure of the screen’s reflectivity versus a reference surface. It occurred to me it might be possible to DIY this effect on the cheap using 80-grit glass bead sandblasting media from Harbor Freight. So I bought 25 lbs and ran some tests. The short version? It works! But, as usual, not quite like I expected it to. Keep reading for all the gritty (ha) details, or just hang tight and wait for the full tutorial, coming soon!

Sharing Hi-Res 3D Fossil Models Online

Interesting item from Dallas’s Southern Methodist University, where paleontologist Thomas L. Adams and co-workers Christopher Strganac, Michael J. Polcyn, and Louis L. Jacobs have used a laser 3D scanner to produce a high-resolution model of a large outdoor dinosaur track which is a landmark in downtown Glen Rose, Texas. Exposed to the elements in the town square, the track is (very slowly) eroding, and the team’s freely downloadable 3D model is intended to both preserve it for posterity and to facilitate its study by fossil buffs all over the world. Their results are published online in Paleontologica Electronica. [Thanks, Alan Dove!]

Gallery of Spherical Cockpit Panoramas

Gallery of Spherical Cockpit Panoramas

The field of panoramic photography needs some better terminology, IMHO: “360-degree panorama,” it seems to me, could just as easily apply to a circular panorama of, say, the horizon, as it could to a fully spherical panorama that also includes up, down, and every other direction in space you could possibly look from a particular point. Or maybe the term is already out there and I just couldn’t figure it out? If you’re in the know, please share below.