Teracola soldier

I would like to show the differences on taking pictures between big and small aperture. Firstly, let me define what big aperture is all about. Big aperture happens when the blade of the lens is wide open. f 1.8 is considered as big aperture. It lets more light through compared to the small aperture.The smaller the aperture stops or the number after the small letter f (example f1.4) the more it let the light through.
Small aperture happens when the number of the aperture stops is big (example f22).The opening of the blade is small and the light get through is less than the bigger oppening.

The 1st picture is made into small aperture to produce the star shape effect at the light source without the help of any specialized filter. However, it requires a long duration of exposure to produce such effect because very little amount of light can get through the lens. The tendency for the pictures to appear blurry is greater. To overcome this problem, the camera is fasten on a tripod or onto something stable.

The star effect can´t be achieved by using big aperture like the 2nd picture, but you can handhold your camera without much blurry effect and the shutter speed also can be considered higher than the smaller Aperture stops.This kind of aperture is usable when the light source amount is small.
If I made mistake please let me know

F.length=50mm; Aperture stops=f22; Shutter speed=30s ISO=200

F.length=50mm; Aperture stops=f2.2; Shutter speed=1s ISO=200