Or is it just me? How come when I take a picture of an image on my tv or computer there is little to no lag compared to when I take a pic of an actual object???
Forgive me I was never good with science and I wanted to know if there is a way to create the same effect on my "real subjects."
I have a sony cybershot dsc-w70, not sure if this makes a difference or not.
2007-03-08 13:19:58 · 3 answers · asked by InquiringMindsWant2Know 1 in Consumer Electronics ➔ Cameras
Shutter lag is mostly autofocus time. Autofocus is a process that looks for contrast to measure distance. So the closer and brighter the subject, the easier it would be to set focus.The faster it finds a focus point, the shorter the lag.
So I could see that focusing on a bright tv image would be quicker than focusing on a real object with average lighting. (But I am still surprised that the difference was enough to be noticable!)
To reduce shutter lag with real subjects, make sure you have plenty of light, or make sure the Autofocus Assist light is turned on in your camera. (Look in the Settings Menu.) (It is well documented that autofocus is slow or even "will hunt" in dim light.)
Good Luck
2007-03-08 17:01:13 · answer #1 · answered by fredshelp 5 · 0⤊ 0⤋
Shutter lag has improved a lot with faster chips. But it's still there in most point-n-shoots. True, part of the lag is due to focusing, but there are a few other causes. The camera also needs to decide on exposure, white balance, and ISO if it is in full automatic mode. If the flash fired, the camera will wait until the flash is ready again before you can shoot. If you take multiple pictures in a row quickly, you will have to wait for the camera to write the files onto the memory card.
You can speed it up a little bit if you press the shutter halfway. I know some people like counting to three before they take a picture. So with this example, press the shutter halfway to start focus and other calculations when you start saying "one". Then once you say "three" press the shutter all the way down and the lag will be decreased. You can do this for other situations too.
2007-03-09 02:31:17 · answer #2 · answered by Jason 3 · 0⤊ 0⤋
just a guess- but perhaps you camera has an easier time focusing on an illuminated screen? Doesn't need a flash?
But- other than the AF time, there's nothing especially different from the camera's perspective. Are you sure it's faster?
2007-03-08 23:21:12 · answer #3 · answered by Morey000 7 · 0⤊ 0⤋