Epson r-d1 - Rangefinder Digital Camera User Manual page 24

With Manual Exposure
When manual exposure is selected, the manually selected shutter speed
is lit and the metered speed flashes.
Flashes Lights
You can rotate the shutter speed dial and/or the aperture ring on the
lens to match the metered value, at which point only one shutter speed
will be displayed in the viewfinder. Or you can disregard the meter
reading and do your own exposure adjustments.
With Automatic Exposure
When AE is selected, the metered shutter speed is lit. If you are using
exposure compensation, the shutter speed flashes to indicate that it is
a compensated value.
Lights or flashes
24
Taking Photos
60 500
60
Locking the Exposure Setting (AE-lock)
You can lock the exposure setting at the metered value using the
AE-lock button. This is useful, for example, when you create a single
panoramic picture from a series of images, to make sure they all have
the same level of exposure.
To lock the exposure setting, point to the subject when using the AE
mode and press the AE-lock button. The exposure setting remains
locked until the AE-lock button is released.