Cano2

This technique requires any type of “Fullframe” with an 8mm optics and a tripod.

It is important to remember that using a single camera will result in timelessness between shots, so this technique will only be valid for still scenes and will show its full potential indoors.

Using “Fullframe” we don’t care if we place the camera in a vertical or horizontal position, so if we place it in a horizontal position it will not be necessary to use more hardware than a simple kneecap, and if possible with steps of 30º.

rot2

Place the camera on the rotator using its nut and align this nut on the vertical axis of rotation.

NOTE: It is very important that the camera is perfectly aligned with the horizon during the entire 360º rotation. A slight deviation will cause sewing errors.

Now we will take 12 pictures one every 30º and our Sterepanorama will be ready to be developed.

The interaxial distance will be the cosine of the angle formed between the vertical axis of rotation and the position of the nodal point in adjacent shots.

If you want to increase the interaxial distance, take only 8 pictures, one every 45 degrees, if you want to reduce it, take 24 pictures, one every 15 degrees. Another option for reducing or increasing the cosine of the angle formed is to use the small slider that most photo rotators mount; the closer the nodal point of the camera nut is, the shorter the interaxial distance.

To stitch the images we can use any of the software available on the market, I have tried Ptgui 10, Autopano Giga 4.4.1 and Mistika VR, and in all cases it works, although the interpolator used by Mistika VR makes the job professional.

If you use Ptgui or Autopano, the process is simple: Stitch all the images together and then export the numbers: 1, 3, 5, 7, 9 and 11 to compose the left view panorama and the numbers: 2, 4, 6, 8, 10 and 12 for the right view.

Rotational stereography is a good option for those who only have one camera, but two is better than one!  Please visit:   Side-By-Side.

Javi Baranano.