9/18
www.praktica-users.com/cams/nova/supertlmanual.html
value.
Measuring range of the PRAKTICA super TL
Film speed
Expsoure speed
DIN ASA
9
6
1 sec. ... 1/60 sec.
12
12
1 sec. ... 1/125 sec.
15
25
1 sec. ... 1/125 sec.
18
50
1 sec. ... 1/500 sec.
21
100 1 sec. ... 1/500 sec.
24
200 1 sec. ... 1/500 sec.
27
400 1 sec. ... 1/500 sec.
30
800 1 sec. ... 1/500 sec.
33 1600 1 sec. ... 1/500 sec.
Outside the range given above, the meter system of
the camera is out of action for the film speeds and
shutter speeds as indicated. The meter needle then
stands in its end position in the image field, and
exposure readings are not possible.
Should the meter needle make no signs of
deflecting if a reading, as described above, is to be
taken, the battery will have to be exchanged (see
Section P).
Exposure reading with lenses without
automatic pressure diaphragm
In principle, exposure meter readings as described above are possible also with these types of lenses. Only the diaphragm
has to be set to the desired value by hand. It is advisable, with such lenses, to do the focusing before taking the meter
reading, since the diaphragm does not reopen automatically.
Owing to the construction of their barrels, some of the older type lenses protrude into the space accommodating the
diaphragm mechanism and can, therefore, not be used, as they would render it impossible to release the shutter.
K) Focusing
The prism viewfinder of the PRAKTICA super TL is fitted with a Fresnel lens to brighten up the image. Focusing is
performed by rotating the distance setting ring (4) on the lens mount.
There are two different methods of determining the sharpness of the image:
