NaraImage - Investigating images

You can zoom in and out by turning your mouse wheel, or by pressing + or -.
Each click, up or down, increases or decreases the zoom factor by 10%.

If you double click the image, it will be 2 times bigger.

If you double click while holding control key, it will zoom 5000%, which is called 'Extreme close-up'.
You can see pixel values directly on the images when you zoom more than 5000%.

There are of course, shortcuts for zooming.
Press '1' to zoom 50%
Press '2' to zoom 100%
Press '3' to zoom 150%
Press '4' to zoom 200%
Press 'z' to enter yourself.