I`m trying to scan interior (factory ruins) with Canon 550d and 30mm fixed lens. My scanned interior room is about 30m x 10m x 4m.
I`m doing raw (cr2) converted to 32 bit exr exported from newest Photomatix. Photomatix 5 can do 32 bit pseudo hdr from one raw photo. It delete my exeif so I put all data from jpg inside Photoscan (camera calibration). I have question about focal lenght. It`s 30mm and I wrote it like that. But when I`ve read Photoscan Manual there is sentence: "50 mm (35 mm film equivalent)" and I`ve thought that is full frame and my camera frame is: 30mm x 1.524 (Canon-EOS 550D) = 45,72mm. Now I don`t know should I place real 30mm and Photoscan recalulate it to crop size when I set up pixel size: 0.0044036 (fx,fy=6812.61, cx=2048, cy=3072) or should I wrote recalculated one: 45,72mm (this is full frame size 35 mm film equivalent).
Second question is about Capturing Scenario graphs from Manual. There is Interior way to do that but I don`t know how to do angle view on corners. Should I make there many photos with small angle size or only one angle shot becouse that areas should be on flat side views.
Third question is about what if that circle interior proper scenario graph with having wall behind your back is not covering whole room (ground or ceiling or walls). Which place, position and angles should I choose for making that additionary photos. Without using wide angle lens it`s difficult to cover all area (only maybe for me
).
Next question is about adding photos in vertical panorama to cover whole room. It`s better in that case do vertical or horizontal photos and pan it vertically on tripod to cover whole room (30mm is covering only walls without room).
When I did photos randomly with covering last and next photo space (mixing vertical and horizontal without tripod) there was too less matching points for good geometry. But in that case it may be noise from ISO (400).