Jonas B wrote:
At what shooting distance did you check for the NPP? Did you check if anything happened when changing the distance?
I used two methods:
- The first was the “two uprights” set about five feet apart with the lens about five feet away from the closer upright.
- The second was a piece of tape on a window and a tree in the distance about 50 feet away. Camera about 3’ from the window.
Jonas B wrote:
When zooming the lens one can see the entrance pupil move. So normally I would say The camera needs to be moved on the pano head/rail when zooming.
You can see the pupil move back and forth as you zoom in and out. A super rough guess is it looks like it moves about 5-10mm between 16 and 35. Maybe it’s just that at those wide focal lengths it makes little difference, but I’m not sure why.
Mar 30, 2026 at 12:40 PM
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