The Startrails-application With modern digital cameras is it relatively easy to get decent startrail-images. Instead of taking one long exposure one can take many shorter exposures and combine them in Photoshop using layers in lighten-modus. The big advantage is that the background heaven will stay as dark as on the single exposures. My procedure: When visual observing with my 12 dobsonion style Newton telescope I usually cant resist taking some startrails. I put my Canon 10D on a tripod with a wide angle lens at maximum aperture. Camera is set to ISO 400 at an exposure time of 30s. To start the exposures I put the camera in continous drive-mode and lock the cable release. Usually the camera is capable to take 3 frames a second, now however it takes one frame every 30 seconds ;-)
Posted on: Fri, 21 Mar 2014 20:21:31 +0000
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