[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [APML] guiding the fsq106 (was Returning to AP - scope advice)
Hello, I am from France.
I own a Vixen DED108SS refractor. (I think you don't have it in USA).
It is a 108mm refractor, f/d5, 4lens (2in ED), with 4" focuser, 6x7
photo are possible.......It is similar to the FSQ106.
I tried to put it ON my C14 OTA (with losmndy dovetail plate). Results
are poor. Maybe there were flexure or the primary mirror of the C14
moved during the exposure (the guiding was made with the C14).
Now, I guide with a small 80mm refractor (with 150x) put on the VIXEN
OTA, and results are PERFECT.
LEROI Teiva
>
>I agree about the importance of the mount. I'm going with the G-11. If
I
>choose the FSQ106, I'm interested in the guiding options people have
>chosen. It appears that the tube assembly may be a bit short to use
the
>universal dovetail plate and rings with a guide scope on top. Seems
like
>the side-by-side saddles might be the best option for guiding the tak
with
>a separate guide scope on the G-11. I saw a bit of discussion in the
>archives about mounting the tak, but the guiding methods weren't
indicated.
>I've used off-axis in the past but prefer a separate guide scope.
>
>Thanks again,
>
>Joel
>
>
>
>
>
> Matt BenDaniel
> <matt@starmatt.c To: astro-photo@seds.org
> om> cc:
> Sent by: Subject: Re: [APML]
Returning to AP - scope advice
> owner-astro-phot
> o@seds.org
>
>
> 05/31/2002 02:26
> PM
> Please respond
> to astro-photo
>
>
>
>
>
>
>Joel,
>
>The mount is the most important piece of equipment for AP. I would
focus
>more energy on that.
>
>Both the NP101 and FSQ106 are Petzval designs and around f/5. They cost
>about the same. They both deliver flat focal surfaces.
>
>A wide T-mount is available from Tak that vignettes less on 35mm. The
Tak
>also has a nice camera angle adjuster. The Tak supports medium format.
>
>Matt
>
>At 03:16 PM 5/31/2002, Joel_Haynes@powderject.com wrote:
>>Folks,
>>
>>After a several year hiatus, I'm excited about returning to AP and am
>>seeking advice about the relative virtues of the TV NP101 and the Tak
>>FSQ-106. (I'm on the notification list for an A.-P. 130 but I'll need
>>something to get me through the long wait.) Previously, I had good
luck
>>with a TV Genesis (non SDF) (see ftp://voltaire.csun.edu/haynes.dir/
for
>a
>>couple of scanned in, unprocessed prints). I understand that the
NP101 is
>>a step up form the older Genesis in terms of color correction and
other
>>aberrations, but I'm not sure what the Tak has to offer over the 101
other
>>than the 4'' focuser.
>>
>>Thanks in advance for any advice.
>>
>>
>>Joel Haynes
>>Lurking on the list from mosquito-infested Mazomanie, WI
>
>--
>Matt BenDaniel
>matt@starmatt.com
>http://starmatt.com
>
>
>-- APML Archives at <http://astro.umsystem.edu/apml/> ---
> Unsubscribe at <majordomo@seds.org>
>
>
>
>
>-- APML Archives at <http://astro.umsystem.edu/apml/> ---
> Unsubscribe at <majordomo@seds.org>
>
>
>
-- APML Archives at <http://astro.umsystem.edu/apml/> ---
Unsubscribe at <majordomo@seds.org>