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<blockquote data-quote="gqtuazon" data-source="post: 190232" data-attributes="member: 6573">Bill - good question.&nbsp; Based on the experiments that Neil did with his tests including the Gitzo series one and two, they have concluded that the series two Gitzo tripod was recommended up to 200mm only. Series one didn't perform as good even with the self-timer when using a Nikon 70-200m f2.8 lens. See image below. (link from Neil's website).&nbsp; Wayne mentioned the importance of the tripod leg diameter.&nbsp; During the test, I used a camera bag to anchor the tripod for stability and to keep it anchored down to the floor. This post was also to show the best practice when using a long lens and how to achieve the sharpest possible image.&nbsp; ANY small vibration will be amplified and becomes obvious on the long end or the further away the subject is. <a href="http://www.pbase.com/nrothschild/image/69964792" target="_blank">http://www.pbase.com/nrothschild/image/69964792</a>Imagine shooting a small bird using a 300mm on a DX camera. Approx 450mm equivalent, once you crop the image, you'll tend to loose some of the feather details if you don't use a faster shutter speed and/or you have a poor long lens support.<img src="http://www.nikonians.org/res/images/2012_12/photophil_beanbag.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="gqtuazon, post: 190232, member: 6573"] Bill - good question. Based on the experiments that Neil did with his tests including the Gitzo series one and two, they have concluded that the series two Gitzo tripod was recommended up to 200mm only. Series one didn't perform as good even with the self-timer when using a Nikon 70-200m f2.8 lens. See image below. (link from Neil's website). Wayne mentioned the importance of the tripod leg diameter. During the test, I used a camera bag to anchor the tripod for stability and to keep it anchored down to the floor. This post was also to show the best practice when using a long lens and how to achieve the sharpest possible image. ANY small vibration will be amplified and becomes obvious on the long end or the further away the subject is. [URL]http://www.pbase.com/nrothschild/image/69964792[/URL] Imagine shooting a small bird using a 300mm on a DX camera. Approx 450mm equivalent, once you crop the image, you'll tend to loose some of the feather details if you don't use a faster shutter speed and/or you have a poor long lens support. [IMG]http://www.nikonians.org/res/images/2012_12/photophil_beanbag.jpg[/IMG] [/QUOTE]

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