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Thread: EQ6-R Pro - what can I expect with tracking?

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    Default Re: EQ6-R Pro - what can I expect with tracking?



    If you have a polar scope, a polar alignment using it takes about 2 minutes, and is accurate enough for 1-minute exposures, if you do a good job. I think the Synscan alignment is of similar accuracy, though I haven't tried it. Pick your favourite and get good at it. Then work up to drift alignment.
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    Default Re: EQ6-R Pro - what can I expect with tracking?

    Quote Originally Posted by Mikesharrott View Post
    I will try the drift alignment method. But I was hoping for a quicker set-up time using the Synscan alignment. If this is not good enough, then I may need to look closer at PoleMaster.
    You should be able to get a workable polar alignment with either your SynScan or your polarscope. Check first if your trails are in declination or RA.
    Before getting a Polemaster you would get better value from a guiding setup as it would address issues with both polar alignment and periodic error.

    I agree you should not have to hypertune a new mount. But there are some basic adjustments you can make to the work mesh that can help tracking.

    Why not post one of your images that has the star trails so we can have a look.
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    Default Re: EQ6-R Pro - what can I expect with tracking?

    one note,"hypertuneing" doesn't need a full disassembly to gain you improvements it's just there are few other ways to add extra improvements to ''hypertuneing'' that require you to fully dissemble the mount ie replacing grease,belts,gears ,mods ectt.most mounts will let you tune them with just taking of motor covers to tighten the mesh of the gears.

    your mount might already be perfectly adjusted from the factory,it might be a bit loose or even a bit tight (usually they are good enough,i've only ever had problems with the declination being too loose).

    a wiggle of the declination with your hand and the r a will indicate if your gears need a tightening ,if the mount feels sloppy then you might want to have a good read on how to tune the gear meshing.

    keep in mind it might take an hr or two or more depending on how precise you spend on finding the high spot of the gears and adjustment then testing.
    also weather will effect the gears as in summer they will expand and it's enough to interfere with tracking so it's good to have a little play in the gears to avoid this.

    It took me awhile to learn to do this so if your mount is working well then i wouldn't consider it unless you have the Patience and time and it can make tracking worst if done wrong.
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    Default Re: EQ6-R Pro - what can I expect with tracking?

    Mike Sharrott - 20180622 - 182717.jpg
    Here is an example image (reduced size). This was an alignment test of star trails of Arcturus after I had completed a 2-star alignment and a polar alignment using Synscan. This was a 60sec exposure at 400mm.
    Thanks.

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    Default Re: EQ6-R Pro - what can I expect with tracking?

    Your drift is almost entirely in declination so its PA error. The drift rate is 6 pixels per minute at a a pixel scale of about 9.5"/pixel which gives 1 arcminute per minute. So your polar alignment error is around 6 degrees.
    If you can get the PA error well under one degree then your drift would be less than one pixel per minute. The Synscan should be easily capable of that so you may want to review the procedure, or use one of the other methods mentioned.
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    Default Re: EQ6-R Pro - what can I expect with tracking?

    Great stuff - thanks Ken. This is very useful and I will dig in more to be able to understand the figures that you quote so that I can analyse my photos further.
    This sets my mind at rest and shows that I need to focus on my set-up and alignment techniques. Thanks again.

 

 
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