Lens length completely not working

My lens length is not working. In viewport properties (while I am in perspective), I will change the value in the lens length and my view will not adjust at all. I have tried SHFT + CTRL + ALT + RMB and all it does is zoom in and out.
I am looking at a model of a tall building and I want to get the whole building in the frame while being reasonably close to it. Nothing I see online addresses this problem any farther than what I have tried already. Thanks in advance.
(Not sure if you can see the photo but I know its not the highlighted value under Pan, Screen Factor)

Hi Dylan,

Lens length seems to be working fine here:

I don’t see any significant differences between your displayed settings and mine. I’m on Rhino 8.18.25084.13001, 2025-03-25 - what version are you running?

And, dumb question: you haven’t locked the viewport, have you?

Regards
Jeremy

Oooh I thought I was in the correct place when I was in properties–> view → viewport properties → Default 35mm camera lens length <50.0>

I found what spot you were in by clicking the color wheel and it worked!! Thank you so much