EXCERPT page containing first few paragraphs. 2019-03-24 15:26:01
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This page shows how the shutter itself can blur the image, even when mirror lockup is used. The example here is from the series with the Pentax 67 300mm f/4.
The 300mm lens was mounted with a lens plate on the lens itself, the only appropriate mounting technique for a large and heavy lens (as opposed to the camera body). This is never quite as stable as a smaller lens with the camera itself mounted in the head, but it’s what one must do with a heavy lens (see Making Sharp Images). The tripod was a Gitzo 3540XLS, along with the Arca Swiss Cube head.
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These systems are hugely expensive, so make the right choice for your own needs (full frame vs medium format).
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