When im taking regular still non moving pics i use a iso of 50 i get great real crisp in focus pics, now im wanting to take moving objects so should i increase the iso speed or not to say 200. Whats the best settings on a digi cam to take good pics of fast moving objects ( someing moving at 25mph )

Originally posted by pb1977
When im taking regular still non moving pics i use a iso of 50 i get great real crisp in focus pics, now im wanting to take moving objects so should i increase the iso speed or not to say 200. Whats the best settings on a digi cam to take good pics of fast moving objects ( someing moving at 25mph )

You don't say what camera you have, if you can independently alter the shutter speed (shutter priority mode) or the aperture. In either case you should be looking at a shutter speed going of about 1/500 sec and above to freeze action.

You may not be able to get the shutter speed fast enough with ISO 50, so crank up the ISO in increments - keep it as low as you can otherwise you start introducing "noise" into the image which is similar to grain on fast film - random artifacts that you can see close up.

So on my camera, I would set the camera to Shutter Priority (S Mode on the dial) and select 1/1000 sec speed. The appropriate aperture will be selcted automatically. It will need to be a large aperture (low f-number) to allow enough light onto the sensor. It will tell me if it can't be done (i.e not enough light at this shutter speed, aperture and ISO) and I just gradually increase the ISO until it can be taekn.

If you can't manullay select the shutter speed, I guess you can just increase the ISO a step at ta time and take a few test shots to see how they work out. If you are taking shots of something moving in front of you try 'panning' well; that is moving your camera with the object and taking the shot while you are panning - this should give you a crisp subject and blurred background.

But unless you have a DSLR camera, try to keep the ISO as low as possible.

Hope this helps, if not post and I'll try and explain again.

Helps a little, as for my camera its a Canon Power Shot S200

Ive got into the bit on my camera where i can change shutter speed but a little unsure what the numbers mean, the number show are as follows its starts at 1" then goes up to 1"3 1"6 2" 2"5 3"2 4" 5" 6" 8" 10" 13" 15"

Ive always kept it on 1" when ive been taking pics

Originally posted by pb1977
Helps a little, as for my camera its a Canon Power Shot S200

Ive got into the bit on my camera where i can change shutter speed but a little unsure what the numbers mean, the number show are as follows its starts at 1" then goes up to 1"3 1"6 2" 2"5 3"2 4" 5" 6" 8" 10" 13" 15"

Ive always kept it on 1" when ive been taking pics

They look like Shutter speeds, but very slow (long) speeds. ffrom left to right it looks like 1/3 of a sec right up to 15 secs (which is about as long as most digicams go). If you se the main dial on top to S you should be able to select speeds that look like fractions - 1/30, 1/60, 1/100 etc - these are getting quicker. 1 second is too slow for hand held shots really.

The aperture should adust automatically - the faster the shutter speed the lower the F number. If the F number gets too low (and tries to go below F2.8 on your cam I believe) you will need to up the ISO.

Hi,
I don't think these are shutter speeds(way too slow).25 MPH is nothing you should be able to freeze any action at 50 iso in bright weather.Any chance of posting pics with exif info?Do you have a manual and have you read it?I take a lot of aircraft pics and will always use iso 50 if possible,and pan the camera to try and freeze the aircraft but blur any background.This takes practice but is worth it,try it somewhere on a road with passing cars.Have a look at exposure values on this link :-
http://www.sheffieldforum.co.uk/showthread.php?s=&threadid=21767
Have a look at some of these certainly well over 25 MPH :-
http://www.Daveyre.Aircraft.photoshare.co.nz

Originally posted by matsalleh
Hi,
I don't think these are shutter speeds(way too slow).25 MPH is nothing you should be able to freeze any action at 50 iso in bright weather.Any chance of posting pics with exif info?Do you have a manual and have you read it?I take a lot of aircraft pics and will always use iso 50 if possible,and pan the camera to try and freeze the aircraft but blur any background.This takes practice but is worth it,try it somewhere on a road with passing cars.Have a look at exposure values on this link :-
http://www.sheffieldforum.co.uk/showthread.php?s=&threadid=21767
Have a look at some of these certainly well over 25 MPH :-
http://www.Daveyre.Aircraft.photoshare.co.nz

Does it matter what size the subject is when im taking pics of things moving at speed.

You took pics of large aircraft which look great, im off to watch the final stage of the Tour of Italy cycle race in Milan on Sunday. Hoping to get a few snaps of some of the riders as they wizz pass.

Size does not matter ! But it is usually better to fill the frame if you can,you only have 2x optical zoom so not a lot to play with.The trick is to get ready for when the tour comes.If possible try to take your pics as they come towards you and prefocus where you want them to be and wait for them to hit that spot.Don't forget the shutter lag with digital, if possible half press the shutter to lock focus and exposure.
Good luck.