Hi all. I've use a Pentax K10D digital SLR for about 12 years and it has served me well with almost 20k shutter actuations. I'm still very happy with it.
Recently I have taken many photos of architectural subjects, such as buildings that often draw tall, straight vertical lines across the image frame. I've found a strange, recurring thing about my images & compositions. I've noticed that no matter how carefully I align the composition lines of the viewfinder with the buildings, the images turn out slightly rotated and I have to correct that in post-processing. It usually requires about 1° to 1½° counter-clockwise rotation to fix.
Is this kind of behaviour normal with the K10D? Is there some way to fine-tune the alignment of the image sensor?
I attached a sample photo which shows the phenomenon. I used a manual 135mm lens and a tripod, taking care to align the viewfinder's vertical composition lines with the closest building on the left.