Hi to all,
First of all, let me apologize in advance for the maybe stupid, but definitely weird question I am going to ask.
I hope someone out there can tell me a formula or share with me his/her experience.
I am planning to do night photography of industrial buildings / factories.
Apart from the long exposure times, I may encounter windy conditions. That’s why I decided to build a rigid body camera with fixed focus at hyperfocal distance but allowing shift control for perspective correction, a bit in the style of the former “Orbitar” by Burke & James.
The lens that I will be using will be the Sironar W / Sinaron WS 210mm.
Now the question: How much maximum shift do I need?
With the aforementioned lens, maximum vertical shift capability in the 8x10 format will be 29mm, whereas in 5x7 it will be 94mm. (horizontal format at infinity at f22)
Depending on what I need, I will decide to go either the 8x10 or the 5x7 way.
Is there a formula to calculate the amount of shift needed, taken probably into consideration the focal length of the lens, the distance from the subject, the height of the building, etc.
I hope someone can help me with my dilemma.
Thank you in advance and best regards from France.