Olympus VANOX-T - Page 38

3) Set the exposure adjustment button (EXPOSURE ADJ) according
to the distribution of the specimen, Manual exposure adjustment is
necessary even in spot measurement, unless the spot area is com:
pletely filled with the specimen. Refer to the table below as guide
T Film speed Exposure adjustment for distribution of
graphy | Reversal | Negative factor circle inscribed in, setting 一
|
Set
the
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ote
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Seer nr ml + la
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Range of the automatic light measuring capacity
The Model AHBT has the same tight measuring range for both spot
and integrated measurements
The minimum exposure time is 001 sec, but the maximum
exposure time varies depending upon the setting of the RECIPRO-
CITY dial and the ASA rating of film in use.
RECIPROCITY TSOTASA rating (35 mm Fm ISO/ASA rating (args format film) |
E 200 400 | 800 ] 1600 | 3200 [6409/J6a — 1600] 3200] 6400 [s400x2 | sao0xa
o
42
зат
от,
215m|10.7m.|
53m.
|
26m
1 09 | 32| 15 188 | sa | di
2 [257 | 10| 49 | 21 us | 63
3 177 | 25| so ne | os
4
20min~999
ms.
|
287
|
116]
44|]
co
min~999
ns.
153
5 172 | 63 238 |
6 mo) oz
7 133
4 If the exposure time required for a particular specimen extends
beyond the max. limit, expose in manual mode.
3, Manual exposure mode
Exposure time can be selected manually without utilizing the auto-
matic exposure system. This enables you to choose exposure times
yourself, including long exposures beyond the limits of the auto ex:
posure range.
1) Press the MANUAL button
blinking. (Fig. 60)
2) Press the shutter release button (EXPOSE). The shutter will open
and the running elapsed exposure time is displayed on the indicator
panel @
3) When the necessary exposure time is attained on the indication
panel, press the TIME OFF button @ and the shutter closes
(Fig, 59)
to make sure the working light is