----- Original Message -----
From: "Tom Reese"
Subject: Re: For Bertha: King Cobra vs. Wimberly
The biggest real world difference is what happens when the lens is tilted
off horizontal. The lens pivots around the side mount point on the King
Cobra and it swings through an arc with the Wimberley head. I think the
King Cobra is more stable with respect to that movement because the lens'
center of gravity isn't moving as far.
One of the required adjustments on the Wimberley is moving the height of the
lens in relation to the pivot point.
The idea is to bring the optical axix to the same plane as the pivot.
It does move the lens in an arc, but it's minimal, and I think with a lens
whose mount is closer to the balance point, it would be pretty much non
existent.
William Robb