In this video I discuss how to make your own camera cable for the Camera Axe. I cover a bunch of different camera cable pin outs and talk about how the camera cables work with the Camera Axe.Continue Reading →
In this week’s video I talk about using a motion/distance sensor with the Camera Axe to automatically take photos of people running a race. The sensor will detect a person running past and then trigger the camera. In this video I go over the Camera Axe setting, camera Settings, and then do an example run (pun intended).
I found this use of the motion sensor to work very well. I expect it would ...Continue Reading →
This week’s video is about very high speed flashes and whether LED based flashes are practical at these speeds. The dominant flash in this space is the air-gap flash with it’s half microsecond flash duration it is about 100 times faster than a typical speedlite flash from Canon or Nikon. I do some calculations that try to figure out how many LEDs you would need, what kind of current you’d need to driver ...Continue Reading →
This video shows how to use the Intervalometer menu on the Camera Axe to take timelapse photos. The Camera Axe has start delay, interval time, number of shots, bulb time, HDR support, and mirror lockup. This is one of the most powerful intervalometers I’ve seen. If people have ideas about ways to make the intervalometer better let me know.
I use Quicktime Pro to turn the photos into a movie. I’ll probably ...Continue Reading →
This video is about measuring the lag between when a flash is triggered and when light is emitted from that flash. I show the setup I’m using to measure this and then I measure this flash lag for a Yongnuo YN460, Canon 580EX, and a Canon 580EXII. I found the flash lag to be around 50-60 microseconds which is 1000x faster than your typical shutter lag.
Other related videos:
This week I compare and contrast the flash duration and intensity of the Canon 580 EXII and the Yongnuo 460 flashes. They tie with duration, but the Canon flash does make more light.
A huge thanks to Alan for helping with a better light sensor to measure duration. Check out his flickr page for more info about the light sensor used.Continue Reading →
This week I show how to measure flash duration using a light sensor and an oscilloscope. I also explain the advantages of xenon flash tubes and their downfall. Lastly I go describe a trick modern speed-lite flashes use to get their short durations.
After all this I measure the flash duration of a Canon 580 EXII and a Yongnuo 460 flash. Much to my surprise the Yongnuo flash had less than half the ...Continue Reading →