Sensor Cleaning
From apertus wiki
We are using the green sensor cleaning swabs:
It comes with two cleaning solutions: one for dust and one for any oil based residues (finger prints, etc.)
On this page we try to collect typical sensor contamination images, guides how to spot and get rid of them.
The best lighting conditions to spot contamination seems to be mid grey, you can take off or slightly turn the lens to make sure the contamination is not on any lens glass element.
Vertical streaks:
These are the result of using the dust cleaning solution on the sensor. Likely the streaks are oil based contaminations. Use the red bottle "smear away" and a swap to clean the sensor.