ISO 400 or 800
Sorry, more people reply here then the "other" forum
I am about to get a camera and due to budget i am leaning towards a camera with ISO 400
the difference bet ISO 400 and 800 that noticeable?
sd450 vs sd 600
if it's indoors, maybe. you'll get more use out of your flash, or you'll be able to stretch it without a flash.
if it's mostly outdoors, there shouldn't be much of a difference.
this is taking from my knowledge of film. i haven't personally tried any digicams with those speeds..but just to give an idea.
Re: ISO 400 or 800
If it is a digital camera, I think they (the iso settings) are adjustable.
Originally Posted by f_399
The higher the ISO number the shorter amount of time the shutter will remain open to gather light. The film (images) are more grainy than lower ISO settings. (ie fine for regular size photos, but not as good for blowing the image size up. This is true for regular 35-mm film, but I am not sure if the same holds for digital images.)
You may do better to talk to a digital camera expert in a local camera shop. (assuming it is someone that you trust.)
My understanding is that the ISO setting in film is determined by the grain size and responsiveness to light. ISO 100 is takes longer to expose, but has very fine grain and enlarges well. ISO 400 or more will expose over a shorter time duration, but the grain is bigger. This is more apparent with enlargements.
In digital, most compact cameras will allow you to select 100-400 ISO. This basically adjusts the sensitivity of the sensor to light. A higher ISO will expose faster, but the image may have more noise in it.
However, a high quality digital SLR will go much higher. My Digital Rebel XT will shoot at ISO 1600. I recently took photos at a elementary school dance for my daughter. I used my Rebel at 800 ISO and my wife's Canon SD400. The picture quality was much better with the Rebel, even though the ISO was higher.
If you want a good camera with advanced features without the extra bulk and complexity of an SLR, consider an advanced point-and-shoot, such as the Canon S2 IS or S3 IS.