Can I stitch images from a shift lens with PTGui?
First of all, you don’t need a shift lens if you have PTGui! Shift lenses are often used for architectural photographs: photographing a building from ground level, while tilting the camera upwards, normally results in converging vertical lines. Shift lenses compensate for this effect by shifting the optical axis of the lens relative to the center of the image plane. The result is a photograph where parallel lines remain parallel. The same effect can be achieved in PTGui: open the Panorama Editor window, press Ctrl-P to switch to ‘Panorama Edit’ mode. Now drag the panorama upwards or downwards until parallel lines in the scene are parallel in the panorama. You may need to increase the vertical field of view (using the slider to the right of the panorama). If you do want to stitch images taken with a shift lens in PTGui, change the following parameters: • Switch to Advanced mode by pressing the Advanced button in the Project Assistant • In the Lens Settings tab, select ‘Individual Shift
