Reply To: How to choose exact ISO

Sudhir Shivaram

Dear Rajesh,
Apologies for the delayed reply. The notifications for this forum was not enabled and hence was not getting any intimation of new posts here.

1. ISO is mainly decided by what shutter speed you need for an image depending on what is happening in the scene. If there is movement, then do you ant to freeze the action or show motion blur.

2. If ISO is less, then only way to get high shutter speed is by having good strong light. Otherwise you have to increase ISO.