Camera alignment is very difficult

I tried to do it by hand, but find it very difficult to match the scene with camera.

I tried BLAM, suggested by [Giovanni](Section 10 - Lesson 262 - Setting the camera}, fun to do. But also here you need to align. BLAM set only camera lens.
The only good hint was to align the floor grid onto an image corner. But still, a lot of tweaking.

For this airfield photo, it’s difficult to know the camera height (probably 1.70m). If the camera needs to go UP or DOWN, you then also need to rotate it. The corner alignment shifts, etc…

Also annoying was, using keyboard camera movement (Shift-F), that the increments are too big. One key press on moving a direction is big big for small adjustments.

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