I am hoping to get some help from all of you pros. My brother called me yesterday to ask for my help with photographing a UAV. He works with UAV's for mapping purposes and needs to get some good shots of one that they sell. The UAV is about 7 feet across, so the lighting will be primarily natural sunlight. My questions are, should we use some sort of backdrop (like a white background). Also which lens and settings? I am thinking that the 50mm f/1.4 Prime lens would be best. He was asking about taking the photos with the largest aperture and then focus stacking the images for a fully focused image with the best detail. Would it be better to use a macro lens for a life size image? I have a 105mm, though I was thinking that a 60mm would be better for this project. Your thoughts on the best way to go about this project are greatly appreciated.