Monday 27 February 2012

Cindy says ....



"As an experiment you could:
-take a light reading (on 'P' mode)
-adjust it on  'M' then bracket 
so if the light reading was 1/125 @ f5.6
-keep the shutter speed the same and change the f number, 
-above and below the light reading.  For example:
1/250@ f5.6
1/500 @ f5.6
1/1000 @ f5.6
then the other way such as:
1/125 @ f5.6
1/60 @ f5.6
1/30 @ f5.6"

Apertures (different) all at same shutter speed 1/125

f1.4 @ 1/125




 











f5.6 @ 1/125



 f8 @ 1/125




 f11 @ 1/125



f16 @ 1/125

As the f number increases (from f1.4 to f16) 
- the aperture gets smaller 
- less light gets in the camera and 
- the image gets darker.

Shutter Speeds (different) all at an aperture of f5.6.

1/30th @ f5.6





1/60th @ f5.6




1/125th @ f5.6 -
This is the light reading that the camera gave (on mode 'P' then adjusted on mode 'M').




 1/250th @ f5.6



1/5ooth @ f5.6


As the Shutter Speed increases (becomes faster)
- less light gets in the camera
-the image gets darker.