Can’t seem to get something to synth right? Curious about what lens is best? Ask your fellow Photosynthers here.
I guess the sun was too bright and so it cannot synth?
Yes, you seem to have summed it up nicely. The overexposure is really what hurts those photos from making a nice point cloud. Photosynth just ignores bright lights because it doesn't know whether it is the actual light, a reflection of a light, etc.
I think that some months ago I would have simply said that there was not enough texture on the balloon but I've since discovered that even snow will synth ( http://photosynth.net/view.aspx?cid=e315828a-8854-4212-8191-c67f0b03baf2/ ).
Bother... that ending slash messed up my link. Here it is: http://photosynth.net/view.aspx?cid=e315828a-8854-4212-8191-c67f0b03baf2