French pho­tog­ra­ph­er Tan­guy Lou­vi­gny cre­at­ed this time-lapse film of bucol­ic Nor­mandy and Brit­tany using High Dynam­ic Range (HDR) imag­ing tech­niques.

From for­est floor to set­ting sun, Lou­vi­gny’s shots ren­der fine detail across an extreme­ly wide range of lumi­nos­i­ty. To achieve this he used the auto-brack­et­ing fea­ture of his Canon EOS 400D and 60D cam­eras to cre­ate three dif­fer­ent expo­sures for each frame in the film. (At 30 frames per sec­ond, that’s 90 expo­sures for each sec­ond of screen time.) Lou­vi­gny then merged each set of three expo­sures into one image using Pho­toma­trix Pro 4.0 soft­ware, selec­tive­ly tone map­ping each sequence to hold detail in some areas while allow­ing oth­ers to go dark.

To cre­ate the mov­ing-cam­era effects, Lou­vi­gny designed and built his own robot­ic three-axis motion sys­tem using Tetrix motors and a LEGO Mind­storms con­trol sys­tem, which he pro­grammed in ROBOTC lan­guage. This allowed him to auto­mate the tor­toise-like dol­ly, pan and tilt move­ments. Lou­vi­gny edit­ed the dig­i­tal film in Adobe Pre­miere and After Effects soft­ware. To top it off he com­posed his own music on a Roland MC-808 groove­box. For more infor­ma­tion, go to the pho­tog­ra­pher’s web­site and Vimeo page.

Relat­ed Con­tent:

Invent­ing the Dig­i­tal Cam­era: A Short Por­trait of Steven Sas­son

Darren’s Big DIY Cam­era

Walt Dis­ney Presents the Super Car­toon Cam­era

The Mer­cedes-Benz Muse­um in Stuttgart, Ger­many, is a remark­able struc­ture. Designed by Ben van Berkel and Car­o­line Bos of the Dutch firm UN Stu­dio, the build­ing received rave reviews when it opened in May of 2006. Influ­enced by Frank Lloyd Wright’s Guggen­heim Muse­um in New York, the build­ing was described as “jet-age baroque” by The Guardian archi­tec­ture crit­ic Jonathan Glancey. “It twists and turns with breath­tak­ing com­plex­i­ty,” Glancey wrote in 2006, “clever as a con­jur­ing trick.”

The archi­tects need­ed a bit of mag­ic to bring the muse­um’s open plan into com­pli­ance with fire codes. Like in the Guggen­heim, the inte­ri­or is one con­tin­u­ous­ly unfold­ing space that spi­rals around a cen­tral atri­um. As a con­se­quence there could be no fire doors to con­tain smoke if a blaze broke out in one sec­tion of the build­ing. To solve the prob­lem, UN Stu­dio hired the engi­neer­ing firm Imtech to design a sys­tem that would draw smoke away from all areas of the muse­um, allow­ing peo­ple to escape.

The result is the world’s largest man-made air vor­tex, a 112-foot-high tor­na­do that auto­mat­i­cal­ly acti­vates in the event of a fire, draw­ing smoke into the cen­ter of the atri­um and mov­ing it upward through an axi­al fan in the ceil­ing. An array of 144 out­lets in the sur­round­ing walls emit pow­er­ful jets of air to gen­er­ate a cen­tral region of low pres­sure, just like in a real tor­na­do. Imtech engi­neers per­fect­ed the design using com­pu­ta­tion­al flu­id dynam­ic (CDF) sim­u­la­tions and lab­o­ra­to­ry mod­els.  The firm has cre­at­ed sim­i­lar sys­tems for air­ports in sev­er­al Ger­man cities, includ­ing Düssel­dorf and Ham­burg. You can watch the tor­na­do at the Mer­cedes-Benz Muse­um in action above.

Relat­ed Con­tent:

The DIY Tor­na­do Machine