12-07-2005, 01:49 PM
Join Date: Aug 2005
Location: kuala lumpur, malaysia
Originally Posted by ranchwest
On a slightly different topic, I also want to point out shutter lag. I hope you haven't covered this somewhere else. I'm not an expert on photography, but I have shot a lot of sports photography and the same principles apply, I believe, to aquarium photography.
The time from when the shutter button is depressed until the shutter actually releases is called shutter lag. This varies tremendously from camera to camera. Since plants don't move much, it really doesn't matter much for plants, but if you want to capture fish in a precise position it matters a lot.
My wife has a DImage camera and it is great except the very long shutter lag. To give a point of reference, I have depressed the shutter button while a baseball pitcher is delivering the ball to the plate and come away with a nice picture of the baseball about to clear the infield (going the other way, off the batter's bat, the ball has travelled about 150 feet at about 90 mph, do the math). Obviously, in an aquarium setting, a fish could be out of the image area.
I've also found that manufacturer claims about shutter lag are not very reliable.
I recommend reading reviews and doing whatever tests you can before buying a camera. Cameras can be great for one purpose and lousy for another.
that's a good point, a lot of older pocket digital cameras have camera lag problem...[older than two years] most newer ones have sorted this problem already with faster processing speed.
if you use auto focus this becomes a similar problem. the camera needs to focus first before shooting. best to set it to manual[check if your pocket camera have setting 1m focus or 0.5m] and measure distance from camera accordingly.[you need a tripod]
that way you get almost point of fish in shot when you depress shutter button.
SLR's do not have this problem as they all have manual focussing.
ps. sorry to hijack thread nikolay.