Sigma C72900 User Manual

 

After you set the aperture, the camera will determine the 
appropriate shutter speed. If you select smaller apertures, depth of 
field will be greater. Larger apertures tend to blur the background, 
as depth of field will be shallower. 

 

1 

Set the Mode Dial to the A position. 
(The aperture value indicator is 
illuminated in green.) 

2 

Select the desired aperture value by 
using 

 button. 

(The aperture value can be set in 1/3 
stop increments from F2.8 to F14.) 

3 

Press the shutter button “half-way” to 
verify the focus and take the picture. 

 
 

 
 
 
 

• 

When 

  is shown on the color LCD monitor, camera shake may 

occur (the shutter speed is set slower than 1/25). If this mark is 
displayed, please use the flash (P.46, 69) or a tripod. 

• 

If the appropriate shutter speed is outside the range of suitable 
combinations due to the subject being too bright or too dark, the 
shutter speed indicator will blink. If the subject is too bright, set the 
aperture value to a smaller one (larger F-number). If the subject is 
too dark, set the aperture value to a larger one (smaller F-number) 
until the indicator stops blinking.