11th December 2003, 11:55 AM
11th December 2003, 12:06 PM
U can try increase yor ISO to ISO400.
Will have more noise, but your shutter speed should be faster.
If it doesn't work, U can try to use flash again, with 1/60. Then when U take the pic, if it's overexposed, set to manual mode, change the shutter to a faster speed, maintaining the aperature value.
11th December 2003, 12:07 PM
The blurring is caused (as you have found out yourself) by the slow shutter speeds without flash.
If you intend to shoot without flash, then you need to make sure that the following conditions are met :-
1. The subject(s) are in adequate light to enable you to set shutter speeds high enough to avoid blurring - how high is high enough? Speeding Ferrari maybe needs 1/500s, speeding snail maybe only need 1/5s - highly subject/movement dependant.
2. If there isn't enough light eg. indoors, shade; then you need to increase the ISO sensitivity of the camera (in film parlance, change to a higher speed film, in digital parlance, just twist that ISO dial to a higher number). For example, if you find that ISO200 indoors only give you 1/30s shutterspeed, then changing ISO to 400 or 800 will give your 1/60s and 1/125s respectively. BUT, bear in mind that the noise characteristics will also increase - you will then have to balance potential blur vs potential noisy photo.
As for the flash overexposing the pics, the reason may be that you are too close to the subject or the subject is too small against a dark background. If you are too close, the flash may not have enough time to switch off the light output; and if the subject is small against a dark background, the flash may be trying to send out a higher output to compensate thus overexposing your subject.
11th December 2003, 12:09 PM
Originally Posted by AReality
Alternatively, you can set the flash to -1/3 stop on the A70 if it tends to overexpose. That way, you'd still get the "fill-in" of the flash without lowering the shutter speed.
11th December 2003, 12:12 PM
The flash on the A70 has FEC & TTL ?
Originally Posted by vince
11th December 2003, 12:18 PM
To fix this, you have to understand exposure basics.
Originally Posted by Darkhorse
Going back to my previous post, given adequate light, you will have several choices for exposure.
For example, for a well-lit scene, the correct exposure can be achieved at the following settings :-
1/125s @ f/5.6
1/60s @ f/8
1/30s @ f/11
1/250s @ f/4
1/500s @ f/2.8
All the above are correct exposure values for the same lighting conditions.
But (hypothetically speaking) if you are trying to take the same scene at the following settings:-
1/125s @ f/8; or
1/60s @ f/11
then the resulting image will be 1-stop underexposed as there isn't enough light reaching the sensor.
So, I am guessing that given that the A70 apertures aren't exactly very large, setting 1/60s indoors is hitting the maximum aperture and that is causing your pictures to be undereposed in Tv and Manual modes.
11th December 2003, 12:27 PM
Question: What do you mean by your shots are overexposed? What I mean is describe your "overexposed" shots.
Originally Posted by Darkhorse
11th December 2003, 12:40 PM