Canon EOS-1D Review
Exposure / Focus / Metering / Drive modes (cont.)
Partial metering is more effective for strongly backlit subjects, metering is weighted at the center of the frame covering 13.5% of the viewfinder area.
Spot metering is useful for metering very precisely a single subject or area within a scene. The metering is weighted at the center of the frame covering 3.8% of the viewfinder area. With AF points limited to 11 or 9 (custom function 13 is 1 or 3) the metered spot will follow the AF point.
In this mode the entire frame is metered but more emphasis (weight) is placed on the center portion of the frame.
| P.Fn 2 allows you to disable any of the metering modes.|
|*1|| P.Fn 19 allows you re-program this low speed frame rate to approx. 8, 7, 6, 5 or 4 fps.|
|*2|| P.Fn 19 allows you re-program this low speed frame rate to approx. 3, 2, or 1 fps.|
Looking through the viewfinder the camera displays the capacity of the buffer as a two digit numeric (right side of the viewfinder display). This buffer burst capacity at different ISO sensitivities (these are camera estimates, real burst capacity will depend on scene complexity, noise and CF card write speed):
|ISO||Camera est. JPEG / RAW|
|ISO 200||21 / 16|
|ISO 400||20 / 16|
|ISO 800||20 / 14|
|ISO 1600||14 / 14|
| P.Fn 20 allows you to limit the number of shots in continuous mode, when this setting is enabled the camera will only shoot the specified number of frames for any single press-and-hold of the shutter release button.|
Top of Camera Controls: Right Side
Right side of camera controls
|Button / combination|
|Acquires a flash exposure
lock, attached flash will pre-flash and meter for the correct flash
Also used in multi-spot metering mode to select a meter point.
|Illuminates top or rear LCD status panels with blue LEDs for six seconds.||No function|
|Select exposure compensation:
+/-3 EV in 1/3 or 1/2 EV steps *1
|AE Lock - lock exposure as it is currently metered, this allows you to then recompose the image and shoot.|
|Enter AF point select
Main dial dial (top) used to select AF points horizontally, quick command dial (rear) used to select AF points vertically.
|*1|| Exposure compensation steps can be set to 1/3 or 1/2 EV via C.Fn 6.|
| C.Fn 4 allows you reprogram the function of the shutter release and AE Lock buttons to various combinations of AF / AE Lock.|