Falkentyne wrote:That requires doing something called "Pursuit camera." There should be articles on how to take pictures of moving objects like that, or you can do a search for Pursuit Camera. If Chief comes, he can link you to one of his posts.
Very expensive cameras may be able to capture accurate images without needing to take a pursuit camera method, but I don't think many of us here can afford that kind of equipment.
Actually, a pursuit camera can be done for FREE
Free setup, the "Sliding Tupperware Technique" with a cheap camera (even your iPhone, your Android, your smartphone duct-taped to a sliding device!), actually succeeded in ~0.1ms tracking accuracy (1/10th pixel pursuit accuracy in 1-out-of-20-attempts at 960pixels/sec).
Somewhat more expensive setup (2 tripods, a camera rail, and a common SLR):
In fact, some sites are mid-air pursuiting an iPhone through midair to successfully capture ~1ms tracking accuracy (+1 pixel of blurring may take about 20+ attempts). You simply figure out which photo had best hand-tracking accuracy, simply by looking at how the ladder "sync track" tilts in these example pursuit photos (Scroll down a bit)
Also, videos (1/30sec exposure per frame) can be a big timesaver -- it provide a continuous rapid-fire (30 frames per second) during pursuit. After capturing the video, single-step through to find the clearest video frame with the most perfect-looking Sync Track capture. Save that specific video frame. The Blur Busters instructions for pursuit camera are listed here
and are done by several display reviewers
This Blur Busters invention, is a peer reviewed paper
. This kind of stuff formerly required a $30,000 automated camera. Now can be done for free with household parts lying around, with a hand-propelled camera, because the temporal test pattern actually tells you how accurately you hand-pursuited the camera, with scientifically verifiable results -- so you can kee retrying until you hand-pursuited accurately when the tickmarks lines up perfectly. Very easy once understood. Now, TFTCentral, RTings, pcmonitors.info, SWEclockers, HDTV Poland, etc, have now started using the Blur Busters invention. Formerly used only by scientists/researchers, accurate display pursuit camera is now finally accessible to bloggers/reviewers/users/enthusiasts. Whenever you see our UFO logo on another website, you recognize that they're using our invention!But that said, I'm getting off topic...Most people don't always really need to use TestUFO this way....
Users can just load http://www.testufo.com
on multiple monitors and find what which monitors looks better with motion. Things like Moving Photo at http://www.testufo.com/photo
is also quite handy too. The http://www.testufo.com/frameskipping
is very popular with display overclockers as well.
And TestUFO can just simply be quite educational, like http://www.testufo.com/eyetracking
as well http://www.testufo.com/blackframes
-- teaching the principles of how displays create motion blur, and how blur reduction works.