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Pre-Purchase Questions on Planewave 12.5 cdk

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#1 SeattleStarGazer

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Posted 21 February 2019 - 10:25 PM

Hello! I'm a potential purchaser of a Planewave 12.5 CDK. I'm a long-time (25 years) refractor user for both visual observing and imaging, but have always been interested in having a larger instrument. I've looked through friends' 10" scopes but the views were not up to snuff for me generally - stars weren't sharp and focusing was difficult. However galaxies and planetaries were nicer., so the idea of adding another larger scope has always been there.

 

Now this year is my 70th birthday and I have the opportunity to make a purchase, maybe the last time I'd want to. The 12.5 CDK falls within my budget and weight handling capabilities (at least now), and I'm asking for opinions of other users and owners, especially those with refractor experience.

 

I'm also interested in software support especially for focusing with the PW EFA and stock Hedrick focuser with programs like MaximDL and Sequence Generator Pro. I have done some internet searches and read some materials, but this seemed like the best place to ask for help.

Oh also - I have an AstroPhysics QuadTCC reducer, is it compatible instead of buying the PW model? I've seen some posts but no conclusion.

 

Thanks in advance

 

Wayne Hixson, Seattle Star Gazer

 



#2 petert913

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Posted 21 February 2019 - 10:51 PM

Congratulations.   I have always lusted for a Planewave telescope.  Quality gear.



#3 EricCCD

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Posted 22 February 2019 - 10:44 AM

I've had one since 2013. I had it delivered to a remote observatory so it's never seen my home.

 

Our particular sample arrived with the mirror spacing off, so I had to go through the whole rigmarole (well documented, and all parts needed for that came with the scope, thank goodness!) of adjusting the spacing and recollimation. I always have this nagging feeling that maybe I could tweak the collimation a little better, but since I am rarely on site I've never taken the time to check. That said, I'm happy overall with its image quality.

 

The PWI software available for download interfaces well with MaximDL. I like its autofocus routine (which also does interface well with Maxim), but I've tended to favor FocusMax especially when I image with a narrowband filter.

 

I don't know if the AP QuadTCC will work with that scope. Might be worth a shot, especially if you're on site!

 

Feel free to PM me if you have any other questions.

 

Sample images:

http://www.skiesbyaf...laxies/M88.html

http://www.skiesbyaf...es/NGC7497.html

http://www.skiesbyaf...es/NGC2403.html

http://www.skiesbyaf...axies/M101.html

 

HTH,

Eric


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#4 DeanS

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Posted 22 February 2019 - 11:09 AM

Rather than use a reducer, have you considered a slightly faster scope to begin with?  The AG Optical iDK scopes are native F/6.7 and might be better than trying a reducer if this is your preferred F/L. 

 

Of course I am biased as I own 2 AGO scopes ;)

 

Dean


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#5 SeattleStarGazer

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Posted 22 February 2019 - 11:16 AM

Thanks! Dean, I did look at the AGO FA 12 but I’m told they’re sold out for the year ☹️

#6 JohnH

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Posted 22 February 2019 - 01:06 PM

https://translate.go...t-text=&act=url

 

Some versions are not all they are cracked up to be




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