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14" LX850 will ship with electronic micro-focuser

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#26 GSO

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Posted 17 January 2013 - 03:25 PM

I have 2 of them,......

Microfocuser manual

Theo

Thanks for that
Mine works well but has a grinding noise
will examine it and see what the problem is :question:

#27 gillmj24

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Posted 17 January 2013 - 08:46 PM

Can you manually use this focuser on these f/8 OTA's if you don't use a computer or a go-to mount?

Bill


The LX800 scopes they had at NEAF were all manual focus with a new "zero-shift" system they were marketing. Instead of one rod just pushing the mirror off axis I think it was supposed to push the mirror at at least 3 points so that the mirror wouldn't shift. It was definitely different, the knob was about 3x the diameter as the LX200 type scopes. And like a feathertouch it had a fine focus knob if I recall correctly.

Has anyone confirmed whether or not they are selling the old LX200GPS microfocuser with the LX850??? It sounds like the new 2 speed manual focuser is being called the LX850 microfocuser and it is not the same as the LX200 electronic one. Has anyone seen an electronic LX850 microfocuser that screws onto the back of the tube??

#28 Bill Barlow

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Posted 17 January 2013 - 09:17 PM

Thanks for the information. I was hoping that you could just use your hand and fingers to focus the object seen in the eyepiece.

Bill

#29 gillmj24

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Posted 17 January 2013 - 09:25 PM

They learned their lesson from the RCX I suppose. Not that mine ever had any problems, but I know many had focus runaways. If the optics are like the f/8 RCX people will love them, large central obstructions and all :p

#30 gillmj24

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Posted 17 January 2013 - 09:35 PM

Ok they updated their website!

http://meade.com/lx850

There is a 7:1 two speed mechanical focuser that moves the mirror. It was supposed to be zero shift but maybe it wasn't working as well as they hoped. So they added the electronic microfocuser which in the very small picture it is attached to the scope and resembles the old LX200GPS one.

#31 galaxy_jason

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Posted 31 January 2013 - 04:02 PM

The manual focuser works very well indeed! Virtually no shift while focusing. However, the 14", having such a big mirror will add a focus lock so you don't get differential movment between Starlock and your camera. When the primary is locked you need an external focuser.

#32 Bill Barlow

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Posted 31 January 2013 - 08:44 PM

Jason, is the new manual focuser on the M14 done using your fingers or is it a motor focus unit..thanks.

Bill

#33 Griffin!

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Posted 31 January 2013 - 08:53 PM

It sounds like it has the new manual focuser like all of the other OTAs but it gives you the option of a focus lock, which if you use you would then use the electric motor focus unit included with the OTA.

#34 galaxy_jason

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Posted 31 January 2013 - 11:03 PM

Exactly. Except the new focuser on the OTA has an outer (course) and inner (fine) knob.

#35 GlennS

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Posted 11 March 2013 - 07:17 AM

The Micro Focuser is the same one as the LX200GPS -- it vas an adapter that screws onto the rear cell, the adapter does not add to back-focus -- the focuser fits over it, not in back of it.
Yes, I wish it had a compression ring -- it has three screws that hold onto what ever you connect it to -- there is an adapter that provides SCT threads to the rear, or you can place the diagonal directly into it -- I use the SCT thread adapter because the diagoal SCT adapter has sturdier screws.
The microfuser iscontrolled directly by the hand controller -- there is no extra external power supply for it -- it plugs into the mount 'focuser' port.

#36 ahopp

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Posted 11 March 2013 - 07:33 AM

Glenn,

Which OTA did you get and when?

Tony






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