Ansel
Senior Member
EdOkH said:What is your view on the above??:dunno:
Cheers...
Well, we have to accept that the lenses are mechanical products and as such they obey the laws of mechanics, which includes the gravitational effects. In short, we can't fight nature.
When the lens is designed such that it's centre of gravity shifts laterally as it focuses or as it zooms, then it will have to fight with the force of gravity one way or the other if it is tilted up or down. This effect is more pronounced with a lens that extends itself as it zooms, compared with one that remains at a constant length while zooming or focusing. The former type will always creep, whether it an expensive lens or cheap lens, it is just a matter of time. We just have to be aware that it will happen and take the necessary precautions.