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    Why are Telephoto lens not so good?

    Tele lenses for large format are "true telephoto" designs i.e. they have a much shorter draw than their focal length indicates. This is achieved by first creating an image and then enlarge this...
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    Aligning the Arca Swiss standards?

    Several persons reading these pages seem to use the superb Arca Swiss F-line camera. I bought a used one recently and see that the standards are not f ully perpendicular to the base when locked in...
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