Olympus E-20 Review
Lens barrel controls
Looking at the lens barrel from the left of the camera we see a variety of controls starting with the focus and zoom rings, buttons to change camera settings (used in combination with the main or sub-dials) and two switches, all detailed below.
The two rings on the lens barrel of the E-20 work in slightly different ways. The front focus ring (smaller of the two) is a "fly by wire" type, that is it moves freely, the camera detects the amount of movement and changes the focus point. The zoom ring is "mechanical", that is its attached by gears to the mechanism within the lens, this allows for very fast and accurate selection of a focal length by simply twisting the ring (just like a traditional SLR).
Buttons used in combination with main or sub-dial
|Hold||And turn main or sub-dial:|
Select metering mode:
Center Weighted Average
Select drive mode:
Selects an exposure compensation between -3 EV and +3 EV in 0.3 EV steps. Exposure compensation is displayed on the top LCD, viewfinder status bar and rear LCD (if enabled).
|Focus Range (Macro)
Select auto focus range:
Optional Lens (if enabled)
Optional x3 Lens (if enabled)
(the last two options can be disabled through the setup menu)
|Auto / Manual Focus
Throwing this lever disenages the auto focus mechanism and enables the focus ring on the front of the camera (focus-by-wire).
|OPEN||Open LCD (release)
This button releases the rear LCD so that it can be tilted out either down or up.
Switches / Levers
Select focusing method
Auto Focus (manual focus ring disabled)
Manual focus (manual focus ring enabled)
|OPEN||Release rear LCD
The OPEN lever releases the rear LCD so that it can be tilted out, up or down.
Manual White Balance
The E-20 features a "one-touch" manual white balance button, it's located on the front of the camera just next to your fingertips (beside the hand grip), you can press it at any time to take a white balance reading for the manual preset white balance setting (obviously you're supposed to be aimed at a grey card / white wall and not overexposed).
If the sample is ok to be used for white balance measurement you'll see the display on the right below asking you to confirm the new white balance (press OK). This won't automatically switch selected white balance to manual preset, you have to / or already have chosen it. A well implemented feature which works.
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