1. For best results stand from the subject at a distance from where full object is fully covered in your frame and take at least 50% of space in your image.
2. Now, move in a circular path around the subject maintaining fixed distance with the object. Take photographs at a step of 10 degrees (choose your step between 10 to 30 degree) each. Note that good overlap of subject‘s features visible in two images increases the surety of good calibration and reconstruction.
3. For adding more details to reconstruction, take close and focused shots of features without caring to cover the full object in frame. Take 2 to 3 images of features from different angle to get good overlap in the close shots.