Adolf Luther, Hohlspiegelobjekt, 1967, 25 concave mirrors, aluminium, glass, 60 x 60 x 9 cm, Photo: Marcus Schneider, Adolf Luther, Hohlspiegelobjekt, 1969 , 64 concave mirrors, aluminium, plexiglass,, 110 x 110 x 7cm, Photo: Marcus Schneider, Adolf Luther, Lichtschleuse (light trap), 1964, Stripes of glass between glass plate, aluminium frame, steel rack, 50 x 14 x 25 cm, Photo: Archive, Adolf Luther, Lichtschleuse (light trap), 1962, Stripes of glass in between glass plates, aluminium frame, steel rack, 51 x 38 x 14 cm, Photo: Inka Recke, Adolf Luther, Sphärisches Hohlspiegelobjekt (beleuchtet), 1979, 8 x semitransparent mirrorstripes,  1 flat mirror, plexiglass, flourescent lamp, 40 x 40 x 16.5 cm , Signature: Luther 79, Stamp: Sehen ist schön, Photo: Archiv Adolf-Luther-Stiftung, Krefeld, Jakob Mattner, Zwielicht russisch , 1982, Space installation, light and glass, Dimensions variable, Photo: Archive, Jakob Mattner, Seraph, 1995, Collotype print, Leipzig, 80 x 60 cm , Edition 30, Photo: Archive, Zilvinas Kempinas, Double O, 2008, VHS tape, 2 fans, dimensions variable, Edition 6 of 6, courtesy of the artist, Yvon Lambert, Vartai gallery and 401 contemporary, , Fritz Balthaus, Untitled (left), 1994, Autofocus projector, projected bubble wrap, plinth, Dimensions variable, Edition 3, Photo: Inka Recke, Fritz Balthaus, Luporo, 2006, Bubble wrap, 240 x 40 cm, Edition 3, Photo: Inka Recke, Jonas Burkhalter, Untitled, 2006 / 2009, frame, vacuum, 55 x 55 cm, Edition 1 of 4, , Zilvinas Kempinas, Light Formation, 2009, Plywood, Nail, Clamp, Spotlight, Paint, 120 x 60 cm, Edition 3 of 20, courtesy of the artist, Yvon Lambert, Vartai gallery and 401 contemporary, Photo: Inka Recke, Zilvinas Kempinas, Light Formation, 2009, Plywood, Nail, Clamp, Spotlight, Paint, 120 x 60 cm, Edition 3 of 20, courtesy of the artist, Yvon Lambert, Vartai gallery and 401 contemporary, Photo: Inka Recke, Jakob Mattner, Wasserlicht, 1996 /2009, 2 wings, light, air flow, Dimensions variable, Photo: Inka Recke,