Re: Re: [APML] Astrophotography with the Synta EQ6 Mount

["TEIVA LEROI" <leroiteiva@minitel.net>]

Hello Doug,
I own an EQ6 mount since 1year.
I use it with a 540mm focal lenght refractor and have no probleme for 
100min astrophotography (the 2 refractors weight 10kg).
Sure, it is a short focal lenght but the guiding is made manually with a
 celestron 80mm rich field refractor, with a 180x power, and there is no
 probleme.
Mine has a +-15" PE but others mounts have very bad PE (+-60").
Also, it is possible to add the PEC option (300$)

To finish, I have the same opinion than Aike: You can not compare this 
very CHEAP mount with G11, A-P,.......better but more expensive.
They do not play in the same court.
best regards.

teiva
france
http://www.astrosurf.com/leroi




>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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