In our previous studies we have presented a method to
measure the detector-to-object distance using a tiltedcollimator
(TC) technique. It exploits the shift of the
imaged object in the image plane, obtained for tilted
positions of a parallel-hole lead collimator. In this work we
present the design and first test results of an instrument,
which combines the localization of a small-size gamma-ray
source with computer-guided precise object manipulation
