WHENTOCHANGETHEISO

Chang­ing the ISO is easy; work­ing out when to do it and what to change it to is the hard part

NPhoto - - Nikopedia -

There are so many ways to change the ex­po­sure on your Nikon D-SLR that it’s easy to get lost on a sea of pos­si­bil­i­ties. It be­comes sim­pler when you think of the ISO set­ting sim­ply as a means of get­ting the shut­ter speed you need. Here are some ex­am­ples of what we mean.

At night on a tri­pod: ISO100

Al­ways use a tri­pod for night shots when you can, be­cause when you’ve got the cam­era locked in po­si­tion you can use any shut­ter speed you like – and this means you don’t have to in­crease the ISO and risk noise, even if your ex­po­sures run into many sec­onds.

Snap­shots af­ter dark: ISO1600

The lat­est Nikons can get great shots even at re­ally high ISOs, so it is per­fectly pos­si­ble to shoot hand­held in­doors and af­ter dark. But you will need a fast enough shut­ter speed to avoid cam­era shake, so try ISO1600 to start with, or use the Auto ISO func­tion.

Low light sport: ISO6400

The prob­lem here is sub­ject move­ment. Sports are fast mov­ing and you’ll need a fast shut­ter speed of 1/250 sec or 1/500 sec to have any chance of freez­ing the ac­tion. This means you may need a very high ISO in­deed – but that’s bet­ter than blurred pics.

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