Praktica LTL Instructions for Use
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The first method is applied if, for instance, movement of the object requires a certain exposure
speed, whereas the second method will preferably be applied it a specific aperture has to be preselected
to achieve the necessary depth of field.
Metering with shutter speed preselected
Preselect shutter speed by means of knob (1). Press metering key (2) above the shutter release
towards the camera body
as far as it will go
, while at the same time rotating diaphragm setting ring
(17) on the lens mount till the meter needle visible in the viewfinder is centered in the circular mark.
The diaphragm of the lens opens or closes in accordance with the adjustment of the diaphragm setting
ring. In lenses with automatic pressure diaphragm it opens after metering, when pressure on the
metering key relaxes, and closes down automatically to the measured value when the exposure is
made.
1. Resting position of the needle
2. Needle centered in circular mark
Metering with diaphragm stop preselected
Preselect diaphragm numeral in accordan-
ce with exposure conditions by rotating dia-
phragm setting ring (17) on lens mount. De-
press metering key as described above, while
at the same time adjusting shutter speed set-
ting knob (1) till the meter needle is centered.
The shutter speeds must be set to the click
stops. Intermediate values cannot be set.
Should the meter needle not be accurately
centered, fine adjustment has to be made by
means of the diaphragm setting ring on the
lens mount. The diaphragm ring can be set to
intermediate values between the click stops.
Using lenses without automatic diaphragm control
In case lenses without automatic pressure diaphragm are being used, the lens will remain stopped
down till the shutter is released. To achieve precise definition it is, therefore, advisable to focus with
the lens wide open before taking the meter reading.
Owing to the construction of their barrels, some of the older types of lenses protrude so far into the
inside of the camera body, as to impede the functioning of the automatic diaphragm, the mirror, and
the shutter. The metering key (2) cannot be actuated either. By no means use force, so as not to cause
damage to the camera! Lenses with barrels of this kind (see illustration left below) cannot be used in
the PRAKTICA LTL.
