FSQ-85 (Baby Q) Question

[Big Dave (Dave)]

I am considering a FSQ-85.
Does any one have one of these and a STL11k camera attached for wide field work?

I was wanting to know;
(1) Would the focusser hold the camera weight?
(2) How much Vignetting would I get?
(3) What adapters are available as I don't like using the 2" Nose, prefer some other more secure adapter?

Thanks in advance.
- Dave.

[monoxide]

hi dave,
a quick google search turned up this site:
http://www.astrovid.com/prod_details.php?pid=3483

it should answer a few of your questions

[Omaroo (Chris Malikoff)]

Dave - are you considering defecting????

[Big Dave (Dave)]

I had seen that information before on another site. The standard spool claims 'The FSQ-85ED also features a newly designed focuser with built-in fine focuser, made for imaging with medium format CCD cameras. This 72mm focuser had been designed to handle CCD and digital SLR cameras with great rigidity.'

The STL would be considered a large format camera but some other forums talk about an adapter and spacer that suits (I have not found the exact details yet). I have seen pictures of this setup but no one talks about any problems they have found.

The field should be flat and colour free, the only issue is holding the camera and how much (if any) vignetting there would be.

Regards,
Dave.

Originally Posted by monoxide

hi dave,
a quick google search turned up this site:
http://www.astrovid.com/prod_details.php?pid=3483

it should answer a few of your questions

[Big Dave (Dave)]

Just playing around with a few options. I still love my WO's but they don't have a 4 element that can image at F3.9 and be colour free and flat!

Originally Posted by Omaroo

Dave - are you considering defecting????

[monoxide]

should handle the STL11k just fine by the look of this:

http://astrosurf.com/nightpixels/setupchili.htm

http://astrosurf.com/nightpixels/ic1...st11k_full.htm


(bottom of the page) this shows the bits n pieces needed to connect it to the scope:
http://astrosurf.com/nightpixels/fsq85ed.htm

[Big Dave (Dave)]

I had also found this page and this was the adapter I was talking about. I dont know if it is a sales site or where to get it and I can't speak italian.
They don't also mention if there is vignetting, but his sample picture looks very tidy!
- Dave.

Originally Posted by monoxide

should handle the STL11k just fine by the look of this:

http://astrosurf.com/nightpixels/setupchili.htm

http://astrosurf.com/nightpixels/ic1...st11k_full.htm


(bottom of the page) this shows the bits n pieces needed to connect it to the scope:
http://astrosurf.com/nightpixels/fsq85ed.htm

[monoxide]

it looks like he either made the adapter himself or had it machined.
this is a google translation of the text at the bottom of the page:

Adapter rings for FSQ85 and reductor

The weight of STL11K is too important to take on the gearbox, I design rings to eliminate all constraints. With the sensor is mounted to the CCD is now fully covered. As you can see in this picture.

going by this chart though:
http://www.optcorp.com/pdf/Takahashi...ystemChart.pdf
all you should need is the reducer, CA35 and wide T mount