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05-29-2009, 02:32 PM   #16
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QuoteOriginally posted by bdery Quote
I searched eBay, and found a collar for a 300 mm lens, nothing more. I might have used bad keywords, though, I'll look some more.

I might also try the DYI, we'll see.

Thanks for the input.
The magic words are 'tripod ring' or 'tripod mount ring'. Some are only around $11. Most state the diameter in the description. They all ship from China.

05-30-2009, 12:30 AM   #17
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Join Date: May 2009
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i see

nice! I like your design. Since I have none of those tools here in the dorm where I live, I think I will contact my friend out in Nagano who has a machine shop. The 70~210 has only a two very narrow areas where the two-touch zoom/focus ring does not reach so the ring brace itself will have to be pretty narrow...
Anyway, thanks for your imput.

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