Chris Marquardt

Episode 1018 (55:21)

Chris says a flash on a camera has very quick fall off, and the output of the flash used to not have the ability to be changed. So it was an all or nothing affair. Electronic flashes today give excellent control, though. It's almost like the camera takes two pictures because it meters for the ambient light, fires a preflash, meters that and then fires the actual flash. It uses just enough of the flash to light the foreground, but leaves the shutter open a bit more to get better detail. This helps achieve a better balanced exposure. It's called TTL (through the lens) flash. You can even dial down the flash independently if your camera supports Flash Exposure Compensation. The Flash is not the boss anymore as a result!

Don't forget our current assignment - Loud! Take a photo of, about or otherwise concerning the concept of "loud" and then post it to the Tech Guy Group on Flickr. Make sure to tag it with the word "loud" as well! If Chris likes it, it could end up on our next photo segment!