I typically use front rise and front tilt with either a 90MM or a 150MM on an Ebony45SW. I do not understand how to insure top to bottom focus (top of spire, and tombstone names in front) and it is usually the spire that is out of focus. I understand the increased distance to the spire top viz the bottom of the church, but even stopping down appreciably doesn't help. I understand the 2/3rds beyond 1/3rd before the focus point going front to back, does the same thing apply to vertical distances?
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