This model was created using two sets of images collected using a 6 m photo pole, the first set were collected with the camera close to vertical, the second were set at an oblique angle; this was to try and get the best coverage over the limestone surface which was itself convex. Although for the most part the data-sets matched very well in one area where the slope was such that the oblique images for part of the frame was at a very low angle the modelling precision was too low and thus this version of the model was abandoned in favour of a model based only on the vertical images only. - A simple case of more photographs is not automatically better.
see https://skfb.ly/K6wG (Low Resolution ) and https://skfb.ly/KnGx (High Resolution)