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Re: [APML] Astrophotography with the Synta EQ6 Mount




Hi Doug,

I am working with an EQ6 with relatively short focal lenght OTA 
(Newton 800mm f/4) - see link below (there are some shots in my deep sky 
gallery)

I also have heard that some of the EQ6 have a huge PE, of course this
"low budget" mount can not be compared to e.g. a G11.

In Germany there are some modifications available, one of them is a 
steering called "Boxdorfer" which enables owners to use PEC and an 
autoguider with the EQ6.

I do not think the above would solve the problem if the gears are 
not precise and if we are talking about a mechanical problem.

I am not an expert, I just through in my opinion, maybe some more 
expirienced folks will be able to provide you with more detailed comments.

All the best and good luck,

Aike
http://www.astrophotography.de
    

Doug Wolf schrieb:
> Gang,
>
>   I *think* I just got bad news.
>
>   My telescope is a 10 inch newt atop a Synta EQ6
> mount purchased from Orion.  (The mount has the Orion
> label on it, but it's an EQ6)
>
>   I've been hearing some very scary things like "this
> mount is absolutely unacceptable for photographing
> DSO's".
>
>   Apparently a number of these mounts have serious PE
> in their drive chain.  (Isn't PE simply a function of
> the roundness of the gears?)  I've also heard a rumor
> that the Orion version of these mounts tend to have
> less PE.
>
>   Does anyone here have any experience doing long
> exposure photography with the EQ6 mount?  Is there
> anything that can be done to correct the PE?  Will
> autoguiding with an ST-4 help? If this mount won't
> work, I appear to be, as they say, "screwed".
>
>   Thanks in advance.
>
>   -- Doug
>
>
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