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The new recording system Rolleiflex 6008 metric 
extends the product range based on the principle of 
strict reseau technique by a powerful metric camera 
system in the medium film format size (60 x 60 mm). 
The Rolleiflex 6008, which was developed for 
professional photography, was modified for the 
application in photogrammetric = measurement 
technique by introducing a réseau plate and a number 
of technical developments. 
The réseau preillumination and the flash system allow 
the use of retroreflective points signals. An automatic 
image evaluation can be effected with the Rollei RS1 
réseau scanner and the measurement software MIROS 
/1992 Knobloch, Rosenthal /. 
Many tasks can be solved with this low cost and 
practical camera system. It is fully compatible with the 
existing system components RS1 réseau scanner and 
the RolleiMetric Software and therefore allows the 
extension and upgrading of these systems. 
2. ROLLEIFLEX 6008 METRIC 
For the application in the high accuracy 3D 
measurement technique, the photogrammetric 
measurement system has to meet with strict demands: 
. reliable flattening of image surface, 
« rigorous formulation of the camera model, 
» Simultaneous determination of the image space 
parameters /1990 Wester-Ebbinghaus /. 
The medium format camera Rolleiflex 6008 metric as 
well as the Rolleiflex 6006 metric were developed out 
of the standard production for professional 
photographers and meet with the requirements of a 
photogrammetric measurement system. 
The camera body is an exceptionally tough special 
aluminium casting. 
The geometric image space is further assured by high 
precision adjustment of camera and lens. 
The fixed film positioning together with the mechanic 
film flattening is not produced in the magazine but in 
the camera body. When opening the built in laminar 
drawslide, the film plate is pushed forward on the 
filmguidebar. The film is fixed with elastic clips at 
both sides. Mechanical film flatness in the Rolleiflex 
6008 metric is simple, for it just has to hold the film 
sufficiently in the focal plane for sharp imaging. 
The use of the réseau grid (mesh width 5 mm, 121 
crosses) in the Rolleiflex 6006 metric makes possible 
a sufficient correction of the film plane by réseau 
transformation on the calibrated cross positions. 
The Rolleiflex 6006 metric has been established in the 
photogrammetric recording technique for years. The 
user has at his disposal a electronical SLR Camera 
with the exposure control, motorised film transport 
and a large range of metric lenses for different tasks. 
For the use of the medium format system of the 6000 
series as a measurement camera in the RolleiMetric 
industrial measurement system, further requirements 
are: 
o a flash system, which is adjusted around the lens, 
necessary for the use of retroreflecting point 
signals. 
< for a perfect film plane, a fine réseau grid (app. 2 
mm) is used, which is also applied for the sensor 
orientation of the réseau scanner /1991 Dold, 
Riechmann, 1988 Luhmann, Wester-Ebbinghaus/. 
« a réseau preillumination assures a perfect 
measurement of the crosses in the image, 
o for easy handling an electronic camera circle is 
important, 
e there must be the possibility to tilt the camera by 
+/- 200 gon. 
Furthermore, it is desirable that the camera can be 
used without flash and preillumination with all 
features. 
In its present form, the Rolleiflex 6008 metric has a 
fine réseau plate (mesh width x = 2.375 mm, y = 1.75 
mm, 23 x 31 crosses). The ring flash and the 
preillumination unit are fixed at the rotation ring as 
well as the recording system via a quick setting. A tilt 
of +/- 200 gon possible with the rotation ring. For the 
preillumination a reflector is moved in front of the 
lens. A definable quantity of the flash light is then 
given into the lens through the reflector. The essential 
camera circle for taking measurement pictures is the 
following: 
1) main illumination 
The first illumination of the film with flash light for 
recording the object points 
2) réseau preillumination 
The réseau preillumination is achieved by setting 
the reflector in front of the lens.