during exposure. The MKF-6M model turned out two years after
was a special modification for long-time space missions.
In 1984 another multispectral camera was added to Jena's
photogrammetric and remote sensing camera range- the MSK-4,
a four-channel camera specially designed for aircraft use.
Into its design went the experience gaired with the MKF-6
and MKF-6M cameras.
The Double Camera Adapter introduced in 1978 provided a
possibility for the simultaneous of two aerial cameras of
identical or different focal lengths.
In 1980, the wide-angle lens cone was upgraded, The 150mm
f/4.5 Lamegon B lens duplicated its predecessor in focal
length, angular coverage and lens speed, while considerably
surpassing it in imaging quality. At f-stop 5,6 it yielded
an AWAR of 61 l/mm for high contrast and 31 l/mm for low
contrast (on Kodak Plus X), Standard distortion throughout
the frame area was 3 ,um or better.
An entirely new genefation of aerial cameras emerged from
Jena in 1982 - the LMK Aerial Survey Camera System
The system completely differs from the MRB concept, with
new substantial performance features thanks to the incor-
poration of modern microprocessor technology. Camera weight
has been substantially reduced (to about 30% of the MRB);
exposure control has been automated, based on differential
exposure metering, and aircraft forward motion, The camera's
new control unit offers a maximum in a lucid user-friendly
arrangement, including the indication of current operating
variables (f-stop, shutter speed etc.), gamma recommendation
and the amount of image motion (if the motion compensator
is switched off). Levelling-up and drift corrections are
automatically transferred from the control unit to the camera,
The system comprises the following modules, viz.
- mount,
- lens cone,
- drive unit,
- magazine, and
= control unit.
The splitting of the camera unit (as exemplified by the MRB)
into two components, i.e, lens cone and drive unit, contri-
butes to the previously mentioned weight reduction and
especially decreases the weight to be lifted in case of lens
cone change during a flight. Supplementary developments as
well experience gained in the successful practical use of
the camera led to an upgraded system, now designated
LMK-1000, A new high-performance lens, the 210mm f/5,6
Lamegoron P was added to the system's range of lens cones,
and the range of forward motion speeds that can be compensated
was extended from a maximum of 32 mm/s to 64 mm/s,
Another improvement is the data projector incorporated in the
magazine, with with camera data (shutter speed, f-stop,
forward motion amount, frame number) and external data can
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