In the past I've made quite a few shots of hot air balloons both in the sky and on the ground.
Most of these are obviously sponsored, also used as a means to advertise, for instance by cigarette companies etc and logos on them are often hard to miss
Do I need releases from the companies that own these logos? Or can/must I photoshop them out to out entirely to be able to submit them without a release? And what if the logo is only partly visible (not recognizable)?
I have some too that are showing a stylized G inside a circle, a logo from my home town of Groningen, used for marketing purpo