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Tripod question converning teleconvertors and DX/FX

DavidN4

Johns Creek, US
272 posts

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DavidN4 Silver Member Nikonian since 09th Nov 2011
Sun 10-Mar-13 12:13 PM | edited Sun 10-Mar-13 12:14 PM by DavidN4

I have a question concerning how you would determine your minimum desired leg diameter in regards to lens length.

I've seen that when someone is using only up to a 70-200mm, a series 2 (28mm) is generally recommended. And it seems that when someone has a 70-300mm, generally as series 3 (32mm) is recommended.

What about an 80-200 AF-S with a 1.4 teleconverter? It's still physically a 200mm lens, but is effectively close to 300mm.

Also, what about DX vs FX? Could the "magnification/crop" of the DX increase the possibility that it might show minute vibrations? How does that work into figuring the desired leg diameter size? Would a 70-300 on a D7000 be calculated the same as a 70-300 on a D600, or would you ideally consider it more like a 450mm on the DX?

To be clear - I am not having any issues with my current tripod, but just have these questions.

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G