Re: Vixen R200SS cooldown (1st light)

[Brian larmay]

I am very very fortunate to have the skies clear out for about 2 hrs now, so of course I'm imaging with it.

I pointed at Sadr and see what you ae saying... I have to get rid of that.

 

Im going to try and put together the iris nebula since there isnt anything really bright enough around it.

The scope has potential, thats for sure, but not as sharp as my 10" meade SF.

I have to give tis optic time.

Right now Im using the mpcc flattener and not the Vixen coma corrector 3.

I need to get a moonlite instead of buying all thee adapters. I can get the vixen t fit in there with a threaded drawtube.

 

Ill keep you updated

 

Brian

 

45.588000N,87.995000W

From: Michael Gregory <mi...@airmail.net>
To: Brian larmay <power_wi...@yahoo.com>
Sent: Saturday, December 8, 2012 5:06 PM
Subject: Re: Vixen R200SS cooldown

Brian,

    Here are some links and an attachment.  Maybe this will work.





Here are some images that I took before and after the mod when I first bought the
scope.  I still have it.  I have used it with both 35mm and a ccd.  The stock
focuser is pretty good.  Not great images, but you will get the idea. :)

Mike.


http://www.gregoryconsultinginc.com/m5.htm

after the mod below


http://www.gregoryconsultinginc.com/m5a.htm

You will notice the effect of the mirror retaining clips on the bright star.

Mike.





At 07:34 AM 12/8/2012, you wrote:
>Thanks Mike, thats good to hear, as I cant really find much info on cooldown of the scope.
>I'll check out the clips when I get it in the mail today, ( was looking at rear cell from pics Ive found).
>Its an all stock scope so I will probably get a moonlite focuser for it to handle the load
>
>I was thinking about gluing the 10" mirror in my starfinder down in its cell. I cannot tighten the nylon screws hardly at all or I get pinched optics.
>I just hate hearing the mirror shift while slewing.
>
>Thanks!
>Brian
>
>
>45.588000N,87.995000W
>From: Michael Gregory <mi...@airmail.net>
>To: APML <astro...@seds.org>
>Cc: Brian larmay <power_wi...@yahoo.com>
>Sent: Saturday, December 8, 2012 7:25 AM
>Subject: Re: [APML] Vixen R200SS cooldown
>
>
>
>Brian,
>
>    I have the same scope and have never had a problem with the cool down.
>
>    There is a modification that I suggest if it has not been done on your scope.
>
>    The clips that hold the mirror overhang the front and will cause diffraction
>patterns in the images.  You can probably find info on the internet.  I used
>silicone to secure the mirror instead of the clips.  It will get rid of the
>diffraction effects.
>
>Regards,
>
>Mike.
>
>
>
>
>
>
>At 07:12 AM 12/8/2012, you wrote:
>>Hi guys,
>>
>>I just bougt a Vixen R200SS in very good condition for a good price.
>>Looking at the rear cell shows it being closed off completley and am wondering if it needs a mod for the rear end so as to ventilate it, or does it
>>cool down by itself ok.
>>I usually let my scope sit in the shadows in my partly opened shed so that the mirrors stay the same temp before imaging.
>>I think that isthe right approach in the winter, but what about summer?
>>
>>Thanks for any experiance
>>Brian
>>
>>45.588000N,87.995000W
>
>

[Brian larmay]

Here i m firsttes shot through the R200ss : http://cygnusxone-telescopiceye.smugmug.com/Nature/Astrophotography/16098654_DT7Hrx#!i=2261680309&k=PKrPqRF&lb=1&s=A

 

So far a signifcant amount of coma, and I need to modify those clips. Stock focuser needs to go

Brian

 

45.588000N,87.995000W

From: Brian larmay <power_wi...@yahoo.com>
To: APML <astro...@seds.org>
Sent: Saturday, December 8, 2012 7:01 PM
Subject: [APML] Re: Vixen R200SS cooldown (1st light)

[steve banbury]

Still, a really nice first light!!

On 12/9/2012 9:01 AM, Brian larmay wrote:
> Here i m firsttes shot through the R200ss :
> http://cygnusxone-telescopiceye.smugmug.com/Nature/Astrophotography/16098654_DT7Hrx#!i=2261680309&k=PKrPqRF&lb=1&s=A

> <http://cygnusxone-telescopiceye.smugmug.com/Nature/Astrophotography/16098654_DT7Hrx#%21i=2261680309&k=PKrPqRF&lb=1&s=A>

> So far a signifcant amount of coma, and I need to modify those clips.
> Stock focuser needs to go
> Brian
> 45.588000N,87.995000W

> *From:* Brian larmay <power_wi...@yahoo.com>
> *To:* APML <astro...@seds.org>
> *Sent:* Saturday, December 8, 2012 7:01 PM

[Brian larmay]

I used a Canon 40D ..modified it myself. Not for faint of heart..or money.

Exposure were kinda short about 1.5mins x 24 each light frame @ 3200ISO

 

I stack all my images in PS because in my opinion, manually is better quality then letting a software stack it.

Try it, its tedious, but I think its worth it.

 

Well the winter storm is here and I'm smack dab in the southern boreal forest, So I must go out and take pictures :)

 

Brian

 

45.588000N,87.995000W

From: Michael Gregory <mi...@airmail.net>
To: Brian larmay <power_wi...@yahoo.com>

Sent: Sunday, December 9, 2012 12:32 PM
Subject: Re: [APML] Re: Vixen R200SS cooldown (1st light)

Brian,

    I used about 1.5 inch segments of clear silicone (the kind that gets pretty hard -- Silicone 1, I think they call it) at three locations spaced 120 degrees around the
mirror.  It is still holding just fine after 10 years.

    What camera did you use for that image?


Mike





t 11:01 AM 12/9/2012, you wrote:
>Here i m firsttes shot through the R200ss : <http://cygnusxone-telescopiceye.smugmug.com/Nature/Astrophotography/16098654_DT7Hrx#!i=2261680309&k=PKrPqRF&lb=1&s=A>http://cygnusxone-telescopiceye.smugmug.com/Nature/Astrophotography/16098654_DT7Hrx#!i=2261680309&k=PKrPqRF&lb=1&s=A