You're using MGE right?
Launch MGE, click on "'Input" (4th tab), then "Launch macro editor" (big button upper right).
Select a key on the keyboard schema (I usually use keys from the numeric pad, like 9), then everything gets disabled except a select box in the bottom left.
Select "Function" from that dropdown list (last option in the list), then another selectbox just underneath gets enabled.
Select "Take screenshot" from that dropdown list (first option in the list, should already be selected).
Click "Save" (button in the bottom right).
When you're in the game, press that key you selected (9 in the numeric pad, in my exemple) and it will take screenshots.
If the Ministry of Truth dissappears as you get closer, it might be because a mod adds it and you generated distant statics from MGE with this mod enabled. Even if it's now disabled from your modlist, it would still appear as a distant static and would dissappear when you get close enough.
And I too think good old Divayth doesn't deserve to die.