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Owner's of the Canon Camera Lens 0284B002 gave it a score of 0 out of 5. Here's how the scores stacked up:
About Exposure
Setting the Exposure
When taking photographs using TTL
metering, no exposure compensation is
necessary to meter the light coming through
the lens.
With TTL metering, AE (autoexposure) is
possible at all focusing distances. Just set the
desired picture-taking mode, then check the
shutter speed and aperture before taking the
picture.
Magnification and Effective f-number
The aperture displayed by the camera assumes
that the focus is set to infinity. The actual aperture
(effective f-number) becomes darker (effective f-
number increases) at closer focusing distances
(magnification increases). This does not cause
exposure problems for normal picture-taking.
However, for closeup photography, you cannot
ignore the change
in
the effective f-number.
When you use a handheld exposure meter to
set the exposure, you must take into account
the exposure factor shown
in
the following
table.
E-6
Magnification
1 : 5
1:
4 1 : 3 1 : 2 1:1.5
1:
1
Effective fiNo.
3.50 3.66 3.89 4.39 4.86 5.84
Exposure
Factor\in
+ stops
1 1
+1 +1
+1+
+2
+"2
+"2
(stops)
lin
+stops
2
2
+1
+1
+
+1t
+2
+3 +3
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