I have made a panoramic image of our field from 15 images I have overlapped and stitched.

The image looks great in the photo editing software but when I import it into G3 the resolution looks all wrong as
the objects in the image are all too close and distorted. I have tried varying my focal length, horizon and image size along with a few other parameter and the results are almost always the same.

Anyone else know how to correct this?

Thanks.