Region of Dark Lanes in Ophiuchus
Described by Barnard in plate 14 of his A Photographic Atlas of Selected Regions of The Milky Way, "These lanes and spots though mostly devoid of stars are not truly vacant, for there is apparently some sort of obscuring material in them".
A true wonder of the Milky Way these lanes are indeed obscuring matter between the stars. They can be seen in a modest binocular under a dark sky on warm summer evenings.
This view was made with the Pentax 67 and 400mm SMC Takumar lens stopped down to f/4.8 and exposure on Fuji Neopan Acros lasted 45 minutes.