I just want to know how the motorised arms allow such deep zoom. I know that they can take hundreds of images which helps but do they automatically take shots at different focal lengths as well to give the depth?? I mean, can I just program one of these things, stand back and let it run, or do I need to change the focal length and run it again and again to achieve the results?
I can't understand how the machines produce these gigapanos if they don't also change the focal lengths.
Many thanks in advance!
I don't know of any robotioc pano heads that - by themselves - can automate focusing of a camera/lens during shoot.
Depending on the scene and your camera/lens choice you may be able to get everything in focus by setting you camera/lens at the hyperfocal distance:http://www.cambridgeincolour.com/tutori ... stance.htm
Or you may need to refocus manually during the shoot. I read that some choose to check/re-focus every row, it helps if you robotic pano head can automatically pause at the start of each row in this case.
there are third-party hardware and software tools that can automate focus stacking but I don't know if anyone has tried using them along with an robotic pano head. It would add considerable extra image processing before stitching.
Reshooting entire multi-gigapixel panos at different focus settings in a serial fashion, is unlikely to be successful because of the time it would take, and changes in light levels, movements in the scene and so on.