Here is a new way to clean your sensor.
Should be able to get good results every time.
http://petapixel.com/2014/08/06/hor...aning-tutorial-will-probably-give-nightmares/
Should be able to get good results every time.
http://petapixel.com/2014/08/06/hor...aning-tutorial-will-probably-give-nightmares/