[taktoon]

I own theta Z-1 for more then a month now and i Use it for Virtual Tours. I have two major questions?

1. Is there an option for automatic bracketing in AV mode (like on Pentax DSLR cameras - for instance AV moed and +2ev and -2ev)? Now I use multi exposure option and I have to enter all the parameters manually for each shot - shutter speed, aperture, WB. Also there is like 5 second deley between each shot in this mode. All that is time consuming. Am I missing some options in menu?
2. Merging HDR image in Lightroom or Photoshop from dng files. Image from Z-1 are rectangular with everything black except two actual image circles in the middle. When i try to merge them into one HDR image algorithm takes aIl the black part of image into account and creates weird effect. Is there a nice (and fast) workflow for Lightroom or Photoshop to merge HDR from Z1 images? Now I use some exposure blending technique The results are nice but it is time consuming.