I find the NGF-S a real pleasure to use. I use it for focussing my 8" Lx200
when doing CCD and double star work. After a rough focus with the stock
focus knob, I use the NGF-S for the final 'precise' focus. The motion is
smooth and steady, moving my ST-7, CW8, and associated cables and hoses with
no noticable strain. It is also very repeatable with the DRO option. The
motor is speed adjustable via the hand controller and adds no noticeable
virbation to the view. It is very nice not having my hand on the scope
adding all kinds of vibration when doing those little tweaks at higher
power.

Anthony J. Kroes
Green Bay, WI

> -----Original Message-----
> William R Wood
> Sent: Monday, June 11, 2001 3:20 PM
> To: MAPUG
> Subject: [M]: New JMI NGF-SE Arrives
>
>
> To folks who have JMI electronic focusers:
>
> I just got a NGF-SE which is the manual version of the NGF-S that most
> people seem to buy. I am only doing visual stuff now and ran out of money
> so I did not get the electronic version.
>
> My opinion after using the JMI for 3 nights is that it is well
> made but as a
> focuser it is not as good as the stock Meade focuser. My LX200 stock
> focuser is quite smooth and pretty easy to dial in; my only complaint is
> image shift which is quite bad especially at high magnification. The JMI
> cures the image shift problem but I think it is harder to focus than the
> stock focuser. I get more image jiggling from my hand on the manual
> focusing knob than I get using the stock focuser. This is because the
> stock focuser is smoother and focuses faster. The JMI requires
> more turning
> to achieve focus since it has a finer or lower gear ratio.
>
> I am wondering how the NGF-S works. Is it easier or harder to focus
> accurately than the stock focuser and how much image vibration do you get
> when the focuser motor is running as you are trying to dial it in.
>
> FYI the JMI NGF-SE plus a TV 2" diagonal plus a Nagler 22 EP does not
> unbalance my 10" LX200. The OTA is still slightly nose or front heavy.
>
> Regards
>
> Bill Wood
> LX200 10" f/10
> Phoenix, AZ
>
>

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