Camera Experiments: ISO

I'm trying to figure out what difference ISO settings make. I remember that you were supposed to use 100 film when you were going to take pictures in bright light, and 800 or even higher (1000!) for low light, although that would make the resulting picture grainier. But on a digital camera that uses no film? Hmmm.

So I stayed up late last night and played with my camera, using the subject I happened to have at hand - a sleeping child laying next to a stuffed dog. I didn't use a flash, although the camera's auto-focus works by shining a light on the subject, so she still ended up getting light in her eyes. She didn't stir, though.

The main difference I noticed is that, using 100 ISO, the lens/shutter stayed open longer - it took longer to take the picture.

[Images Moved]

I'll do more now that I have natural light.

I think I've learned that, in order to get the crisp, clear portraits I want, I need to select 100 ISO instead of letting the camera decide which ISO it wants.




I also think that, if I'm going to do any more of this, I need to do it somewhere other than my blog. How about a blog for this kind of silly stuff? It'll just be for my photo experiments.