How ISO setting in Digicam is useful

To understan the effect of ISO settings (Usually this used to be fixed for a Film in analog camera). Check the following 2 photographs taken at the same time from the same Digital Camera. One with the ISO set to 100 and next is with ISO set to 400.
The above photo is with ISO 100 setting.
The above photo is with ISO 400 setting.
The camera was on the auto mode while taking this photograph. The difference is apperant. While in the night you would like to use the ISO 400 setting so that the details appear brighter.

Flash spoiling your photos . . ?

Well here is the tip. I had taken few photographs from the SLR camera with external flash, While the flash was facing upwards and not directly to the subject. The results were marvelous. Now how to get that effect using your regular digital camera with built in flash . . ? There are quit a few ways to achieve this. One I used here is the use of reflector. I had a small mirror which I placed in front of flash at about 45 Deg. so that 100% of light from flash goes to celing and hence eluminating the room and the subject evenly.

So here is the photo with direct flash.

And here is the one with the use of reflecting mirror. If not mirror you can keep your visiting card handy. The white visiting card can also yield simiral result.