Asking for help again - lens imperfection...

[OldClicker]

What conditions would be most likely make this imperfection show up in the photograph (or better prove that it won't show)? I might sell it and want to show any affects it might have. It's on the rear lens of the 70-200 zoom. - TF

[SmartWombat]

Shooting into the light, I expect.

[another view]

Yes, shooting directly into a bright light source might cause a problem but it's hard to really know exactly what will happen. Some situations will give different results than others, I'd guess.

[freygr]

In most photos you will never know that it's there.