Photo > Works

How Canon DSLRs Communicate with Speedlites Using Light

8 monthes ago   |   By Peta Pixel

Canon DSLRs can trigger Canon Speedlites using the pop-up flash. If you try triggering those same Speedlites with a different camera's flash, it doesn't work, which means that there's actual light-based communication going on between the DSLR and Speedlite. In this 9-minute video, Roger Nieh of Science'n'me explores the technology behind this communication.
“Have you ever wondered how Canon rebel cameras wirelessly trigger speedlights with just its flash?” Nieh writes. “In this video, the pre-flash signal is analysed, decoded, and finally emulated using a microcontroller.”
Since DSLR...
Read more ...

 


Search by Tags

   Works      Video      Educational      Equipment      Technology      Canon      Dslr      Flash      Popupflash      Rogernieh      Science      Sciencenme      Speedlite      Technical      Technology      Trigger  


Emma Elliott presents new marble sculptures at on form 18

Emma Elliott presents new marble sculptures at on form 18

Emma Elliott is one of forty sculptors selected for on form 18, a biennial exhibition of sculpture in stone at Asthall Manor in the Cotswolds. She joins world renowned and... Read more ...

NYC's New Vessel Landmark Has a Big Photo Copyright Grab

NYC's New Vessel Landmark Has a Big Photo Copyright Grab

Hudson Yards , the largest private real estate development in the United States just opened to the public in New York City, and the centerpiece of the Yards is a permanent art... Read more ...

Poppy Painting, Daily Painting, Small Oil Painting, 12x16

Poppy Painting, Daily Painting, Small Oil Painting, 12x16

My friend, Donna, was kind enough to share her gorgeous photo with me, and allowed me to paint the image. Read more ...