Chuck Hards wrote:
I think the Tuthil scope just used V-grooves for German equatorials, and mounted on the shaft housing, not sure how it worked on fork-mounted SCT's...
Nothing better to do tonight since it's clouded over AGAIN, so I set up my C-5 with the Tuthill polar finder and shot a couple of pictures to show how it's mounted on a fork mounted SCT. http://www.trilobyte.net/paw/temp/TEMP013.JPG The image on the left shows a dial on the back of the mounting plate. To use the finder you first consult a chart and, based on the current date and time, turn the polar finder until the indicator arrow points to the correct setting for that date and time. Then you adjust the wedge in altitude and azimuth until Polaris is centered on the cross hairs in the polar finder. The polar finder and its mounting plate are then either removed or left in place for the night. Quick, easy and accurate. Patrick