Night vision 2.

One of the quirks of night vision is that it can be harder to identify very faint images when you look directly at them.

The sides of your range of vision can be better at picking up poorly lit or unlit objects.

To use this part of your vision effectively, instead of staring in one place try scanning the horizon by moving the focus of your vision in small overlapping circles.

 

 

 

 

 

 

 

 

 

 

Sailtrain.co.uk is free to use, but if you feel you would like to contribute to the running and development costs you can donate via Paypal: