Minolta Dimage 7i - Manual (Page 151)

151
Close-up Diffuser CD-1000
Used directly on the camera with the built-in flash to provide soft lighting for close-up photography.
WHAT IS AN EV? WHAT IS A STOP?
Ev stands for exposure value. Stop refers to click stops in mechanical cameras. A change of one Ev
or one stop will adjust the exposure calculated by the camera by a factor of two. Adjustments to
exposure in the A, S, and M exposure modes are made in 1/2 stop increments or 0.5 Ev.
Change in Ev Change in stops Adjustment to exposure
+2.0 Ev
+1.0 Ev
0.0 Ev
–1.0 Ev
–2.0 Ev
+2 stops
+1 stop
Calculated exposure
–1 stop
–2 stops
4X as much light
2X as much light
1/2 as much light
1/4 as much light
WHEN USING FILTERS
Polarizing filters and close-up lenses may cause vignetting at the wide-angle range of the lens (below
the 50mm mark on the zooming ring). With very powerful close-up lenses, such as a +3 or Minolta
No. 2, vignetting may be noticeable below 100mm. Most step-up rings will cause vignetting. The
Minolta Step-up Adapter 49mm to 62mm can be used.