Nikon 50mm 1.4 D lens issue

[vclifford]

Thanks, awesome answer, and all others are correct in pointing that lens aperture is the issue. I visited the same place again and clicked photographs at 1.4, 1.8, 2.2, 2.8 and 3.2
This aberration disappears at f/2.8. I noticed another issue with lens which is evident in the photograph where many of the light bulbs look unlit while in reality all bulbs are lit as in other photographs. I am sure there is a technical explanation for that also . I have noticed all these issues while clicking photographs of lights and that too when I compared with 24-70mm lens.
Regards,

 

[vclifford]

Bumping the thread to ask why this happened to photograph on left (all bulbs were lit) in above post.
Regards,

 

[dxqcanada]

I suspect due to the flicker index: Characterizing and Minimizing LED Flicker - Lighting Solutions | DigiKey