Boxdörfer MTS-3 - easy selfmade display
Canon EOS 300D - change to new filter
Canon EOS 350D - change to new filter
Canon EF-S 18-55 - rebuild to EF mount
Canon EF-S 18-55 IS - rebuild to EF mount
Canon EF-S 18-55 IS - broken AF (cable issue)
EQ-6 - insert new gears
EQ-6 - selfmade MCU Update
EQ-6 - dismantle and cleaning
EQ-6 - optimize polar axis
Easy motorfocus for Newton telescops
Phillips ToUCam II Pro - cahnge to b/w chip
Takahashi FS-60C - digital focuser
Vixen Atlux - dismantle and power supply
Vixen R200ss - optimize
Vixen Skysensor 2000 - changing battery