https://communities.bentley.com/products/3d_imaging_and_point_cloud_software/f/contextcapture-descartes-pointools-forum/170580/images-not-calibrated-or-tie-point-not-aligned-properlyTie point not calibrated properly, 1. We have used Sony Alpha 5100 with 16 mm lens and the data acquired at 120 meter from Ground. 2. 20 Sample images of mid trajectory, processed and the camera model was saved. 3. Entire images are processeden-USTelligent Community 12https://communities.bentley.com/thread/490245?ContentTypeID=1Thu, 08 Nov 2018 14:12:17 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:06baf718-a026-4704-b64a-04b0ba8a3b08Oto<p>Try this:</p> <p><a href="/products/3d_imaging_and_point_cloud_software/w/wiki/28536/the-model-appears-to-be-curved-instead-of-being-horizontal-after-at">communities.bentley.com/.../the-model-appears-to-be-curved-instead-of-being-horizontal-after-at</a></p> <p>You can&#39;t correctly calibrate camera using only nadir(vertical) photos.</p><div style="clear:both;"></div>