I have a Cambo WRS AE, mounted to an Arca Swiss D4, with an IQ160 on the back. Each of these items have bubble levels integrated, the Phase back has electronic levels of course.
When I level the Cambo's bubbles, the Arca & Phase show less than perfect level. When I level the Arca's bubbles, the Cambo & Phase show less than perfect level. When I level the Phase back's electronic levels, the Arca & Cambo bubbles show less than perfect level. What gives?! This is high precision equipment, I would be much happier if each piece of gear confirmed that the other's level measurements are precise.
Am I the only one? If not, who's levels do I follow? Is it possible that my digital back's electronic level is out of whack? Even if that is the case, the Cambo and and the Arca are still not in agreement.
Who can you trust? What should I do?