Friday, August 12, 2011

Swarovski UCA digiscoping adapter: DSLR cameras

To set up the Swarovski UCA for a DSLR camera: - align the supporting platform so that you have a large area, big enough to support your DSLR, as opposed to rotated and made more compact for a point and shoot camera (see video) - attach the camera on to the removable base plate, making sure that the screw is in the centre position on the base plate (as opposed to the off-set position for many compact cameras) - the type of camera objective lens you use is important for mounting and using your DSLR for digiscoping. Normally, your best bet would be to use something like a fixed 50mm f1.8 lens (aperture wide open). Pancake lenses are great as they keep the camera's weight as close to the telescope's eyepiece as possible. It is possible to use a small kit zoom with some small DSLRs. eg with a Canon 1000D setting the 18-55mm zoom to 37-55mm should give you a vignetting free image. The problem with zoom lenses are twofold: they generally do not have the quality of the fixed lenses, and they are longer so there is greater leverage holding the weight of the (comparatively) heavy DSLR far away from the attachment point and the scope's eyepiece. - slowly slide the camera on to the mounted UCA making sure the camera lens does not bash up against the telescope's ocular lens - adjust the height by loosening the screw on the right - now loosen the large black screw underneath the platform to adjust the horizontal and distance alignment. Slowly move the camera until the front of the ...

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