[rollei_list] Re: 2,8F and Rollei Pano Head

  • From: Don Williams <dwilli10@xxxxxxx>
  • To: rollei_list@xxxxxxxxxxxxx
  • Date: Sun, 22 Jan 2017 16:45:35 -0600

At 01:28 PM 1/22/2017, Richard wrote, in part:

There are two problems with segmented panoramic pictures. One is the parallax problem you are talking about. If the lens is not rotated around the entrance pupil forground and background objects will move at different rates as the camera is rotated. There are various ways to find the correct axis. A ground glass is probably the easiest. The finder lend and taking lens in a Rollei are not usually the same kind of lens but the entrance pupils are not much different so the finder will show if the rotation is correct.

Well, I got a fix for that a couple of years back.

Ricoh gave me a Theta which takes fully spherical pictures. The only downside is that you and your hand are included in the picture. I'm not sure why they gave it to me but I guess it was the last model before the video version came out. I used it until the novelty went away. There is software to rectify the image when you view it but if you send someone needs to use the same software (I think).

Regarding your thumb being in the image, there is a way to put it on a thin pole and trigger it with a smart phone but I don't use a smart phone, Luddite as I am. I think that there was a way to rectify the image before sending but all that is on a semi-retired XP machine, so I'll have to check.

The hand-held pano tests I did before turned out just fine because I was far away from the subject and any distortion didn't show up in the merged image, at least to the standards some folks would accept. It was just an experiment.

I see Google Earth has began to include pano images but I have no idea what camera system they use. This all reminds me of some old class photos made with a camera that rotated and moved the film. I guess they are gone. Maybe there are digital cameras that emulate that.

DAW 

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