Samsung GX-20 ユーザーズマニュアル

045

Aperture and shutter speed determine the exposure to light. You can create 
many interesting effects once you understand these aspects.

Shutter speed is the length of time the shutter is open. You can enjoy many 
interesting effects by adjusting the shutter speed.

    

A low shutter speed blurs motion on the 
image. You can feel the speed in the 
picture on the right.

    

Using faster shutter speed 

A fast shutter speed is essential for  
capturing the movement. A faster shutter 
speed froze the same shot as shown on 
the right.  

The aperture stop of a lens can be adjusted to control the amount of light reaching 
the image sensor. This is similar to the way the pupil of the human eyes reacts to 
bright light. The next image shows 
how the aperture is adjusted to a different 
size according to the corresponding aperture 
stop described in the lens. (The image may be 
different  from the actual product and does not   
represent a specifi c lens model.)

 

Objects closer and further away than the 

focused subject will be out of focus. 

You will see that the background is out of 
focus when you focus on the subject.

 

The range in focus expands forward and 

backward. 

You will see that both the subject and the 
background are all in focus if you use a 
high aperture stop. 

▲

 Aperture: f = 2.8, 

  Shutter Speed: 1/500sec

▲

 Aperture: f = 11, 

  Shutter Speed: 1/500sec

▲

 Aperture: f = 8, 

  Shutter Speed: 1/125sec

▲

 Aperture: f = 8, 

  Shutter Speed: 1/15sec