15
15. Waist-Level Finder and Interchanging Magnifiers (con’t)
D. The standard magnifier supplied with the waist-level finder has a
power of -1.5 diopters, which can be exchanged for others with pow-
ers of -4.5, -3.5, -2.5, -0.5, and +1.5 diopters. These optional acces-
sories should be purchased to suit the user's eyesight, if necessary.
Simply rotate the magnifier frame in the counter-clockwise direction
to unscrew. Attach in the reverse manner.
16. Setting the Aperture
A. The aperture ring is rotated, in either direction, to set the required
f/number opposite the white index dot. The aperture ring click-stops
at the numbered settings. Intermediate settings are also possible.
* Intermediate settings cannot be used when the AS-II Finder E is
used.
B. All Bronica interchangeable lenses for the ETRS have fully automat-
ic lens diaphragms, which means that the focusing screen is always
viewed at the full aperture, with the brightest possible image.
However, depressing the depth of field preview lever will stop the
lens diaphragm down to the pre-selected lens opening (aperture),
permitting the photographer to check the depth of field effect on the
focusing screen.
* The aperture ring must not be adjusted while the depth of field pre-
view lever is being depressed.
* Furthermore, the depth of field preview lever must not be used for
taking an exposure reading, with the AE-II Finder E, in both automatic
and manual exposure operations, as the indicated shutter speed set-
ting will not be correct. This is because the Bronica ETRS has been
designed for full aperture metering and over-exposure will result, in
this case.
