Exakta EDIXA PRISMAT LTL User manual

www.butkus.us

EIIIXA
PRISMAT LTL
and
PRISMAFTEX tTt
                                        ':.

Instructions for the
use of the LTL lightmeter

"LTL"; or what'it stands for: ':Light Trough        Adjustable values vor the lightmeter:
Lens" indicates that the metering of tne light        Film Speed: 6-1600 ASA (9-33 DIN)
for: the exposure of the film is done through
the lens. The lens may be wider open or clo-        Black marking:
sed down. Tele- or Wide-Angle Ldnses, or      PRISMAT LTL   1/1000 - 1 sec
the use of Extension Tubes or Extension Bel-      PRISMAFLEX LTL 1/1000 - 1/30 sec'
lows do not make any difference. Filter:s no
longer need to be computed into the expo-      Red marking (shutter speed setting on B):
sure value. The meter will automatically take     PRISMATLTL 2-Bsec
care of these factors, andimake the changes       PRISMAFLEX LTL 1115 - B sec
for the photographer. The metering is very
exact, since only, that portion of the light
projected through the lens onto the gr:ound-
glass is taken in agcount. During the metering
the light beam is reflected by the mirror intq
the Penta Prism of the camera where two
CdS (Cadmium Sulfide) cells are mounted
on each side of the prism.


Technical data:
EDIXA PRISMAT LTL:
shutter speeds 1/1000 - 1 sec and B
EDIXA PRISMAFLEX LTL:
shutter speeds 1/1000 - 1l3O sec and B

(S) LTL-Lever
(Z) Shutter speed dial
(A/ M) Auto mati c/Manual-lever
(B) Aperture Ring                             Choice 2:
(E) Distance Ring                              Coordination of the Shutter Speed to a p;e-
                                                    set Aperture.
                                              Aperture Ring (B) is turned until the desired
                                            diaphragm-stap lines up with the marker on Choice l:                                                the lens.
Adjusting Aperture to a given preset Shutter    A/M-lever on lens in positign "A"
 Speed.                                 View the object and depress LTL-Levbr (S)
At first set the shutter speed at the speed     until its lowest point.
 digl (Z) and at the meter speed indicaror (6).    Turn the meter speed indicator (6)- until the
A/M-lever on lens in position "A". View the     pointer.in the finder of your camera reaches
object and depress LTL-Lever (S) until its    the central position in the open claw. Marker.
 lowest point. At the same time turn the aper-    Since the Speed Dial on the Meter features
ture ring (B) until the meter needle reaches     click-stops, a slight correction might be ne-
the center of the open claw marker in the    cessary on occasion for a perfect line-up. In
 finder. The meter may be shut off thereafter    this case turn the Aperture Ring (B) on the
by releasing the pressure on the LTL-Lever    lens slightly, until the proper line-up is achie-
 (S), and the aperture automatically opens for    ved. Now the meter may be shut off by re-
 full viewing. Now focusing is done the usual      leasing, the pressure on the LTL-Lever (S).
way by turning the distance ring (E).          The Speed on the calibration of the Meter

   f                                                                      " DRY-     (6) is to be transferred to the Speed Dial of t is recommended to make a few
RUNS" and familiarize yourself with these    the camera (Z). The metering is completed
                                                                                                                   ,as different steps. lt is quite easy to operate   and focusing is done by the usual way,
 this system once  it has become routine.          described earlier.

www.butkus.us

CdS cells require the energy of a smalf ,|.35
Volt (PX 13) battery,which under normal con-
ditions should last for about 11f 2years befgre-
replacement becomes necessary. The battery
case is mounted into the camera baseplate.
It is, however, recommended to remove the
battery whenever the camera is not beeing
used for any length of time. lf replacemen-t
becomes necessary, remove the battery co-
ver disc, which is slotted, by turning it with
a small coin inserted into the slot counter-
clockwise. The battery than will pop out. The
Minusside of the battery faces the inside of
the camera. The Cover is to be replaced.
again.