At 06:24 PM 11/24/2003 -0500, you wrote:
>On Mon, 24 Nov 2003 fred42@xxxxxxxxx wrote:
>
>> Quick question. What would be the most suitable thing to use
>> for damping a movement in a lens?
>>
>> I ask it in relation to my recent
>> Nikon shift lens conversion. It has a tendency to 'droop' when shifted all
>> the way up. The mechanism is question is a screw driven plate/groove that
>> carries the lens body. Would I do best to apply it to the screw or the
>> plate?
>
>I don't know how the Nikon shifts are constructed, but if they're anything
>like the Olympus ones, they use a friction pad to keep the lens in place. In
>the Olympus lenses the friction pad is a simple velvet-like surface. If the
>Nikon's do use grease, I would suspect one of the Nye damping greases would
>be suitable. Be prepared for "sticker shock" though, they aren't cheap!
If there's any room between the two surfaces, you could also use high-friction
silicone tape. Such as the one sold by Lee Valley Tools at:
http://www.leevalley.com/wood/page.asp?SID=&ccurrency=&page=32183&category=1,110,43466
There may also be a liquid silicone that you can apply to a surface to give
similar anti-slip properties. Hope this helps.
Garth
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