Idaho Airships, Inc.Aerial & Technical Photography, Photoshop & Flash Blog. |
Posted in Extremely Extreme Photoshop, Photographic Optics on Mar 12th, 2010
Most of us use Canon, so most of us use Canon’s autofocus. There are some things you should know about Canon’s autofocus…
Posted in Aerial Photography, Extremely Extreme Photoshop, Photographic Optics on Feb 4th, 2010
Manipulating the Depth of Field in photography and videography is the new “Hotness.” It’s not best to simply apply a graduated Blur in Photoshop-the effect is far too coarse and does not approximate certain ideosyncracies of a larger aperture.
Posted in Color Science, Flash, Photographic Optics on Dec 31st, 2008
Moire is essentially a spatial patterning defect in digital images. It is caused by deconstructive misregistration of image details, which itself is due to the way CMOS and CCD sensors are configured.
Posted in Photographic Optics on Jan 8th, 2008
This is a 3-Dimensional Adobe Flash rendering of Circular Aperture Diffraction (an Airy Disk) forming. It is not to scale…and slowed a wee bit.
Posted in Photographic Optics on Jan 6th, 2008
Time lapse is catching on. Unfortunately we’re seeing some simple PTZ and NLE framing manipulations being presented as the product of motion control.
Posted in Extremely Extreme Photoshop, Photographic Optics on Dec 20th, 2007
I’ve been asked by a couple of people lately about a cinematic technique that is evidently still in demand: The Dolly Zoom (or “Zolly”). The camera position is apparently static while the background zooms either toward or away from the viewer.
Posted in Photographic Optics on Sep 3rd, 2007
Our investigation of the balance between lens performance and sensor spatial resolution wouldn’t be complete without considering how we, the ultimate sensors, will judge the result.
Posted in Photographic Optics on Sep 2nd, 2007
The Dawes Limit is the smallest resolvable angle of an optical system.
Posted in Photographic Optics on Aug 31st, 2007
Seidel, Nyquist, Rayleigh, and other Bizarre Words that Make Photography Interesting
Posted in Photographic Optics on Aug 28th, 2007
Consider any one horizontal line of pixels: The 5D will provide 4,368 resolved points at best, while the 1DsMII will provide 4,992. The ratio is .875, meaning that for every 10 1DsMII pixels the 5D will provide only 8.75.
