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Thanks, I think I'll see how I go without a finder scope to begin with then, and then add one once I reach my limitations
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A bit more detail - first point your device roughly south and level your tripod, making sure the camera arm is also level. Set your latitude (altitude) accurately.
Take a 30 second shot and check which way the stars are drifting. It helps if the camera is also reasonably level/square with the camera arm.
I use the following rules;
If trailing is left adjust azimuth right - if trailing right adjust azimuth left - if error increases either way you've adjusted the wrong way - take a frame between adjustments of course,
If trailing up/down adjust altitude up/down - if error increases adjustment was wrong way.
You get a feel for which way to adjust.
Keep bracketing (adjusting in diminishing increments) azimuth and altitude until a 60 second frame produces no trailing. I usually follow up with a 3 minute frame to see if I can refine the tracking - minute adjustments by this stage.
Takes about 10 minutes, but well worth the trouble. Hope this is of assistance?