The Planewave 12.5 is right up your alley then. 

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From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bruce Donzanti <donza2735@...>
Sent: Sunday, December 6, 2020 10:56 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Upgrade Scope Suggestions for Imaging

 

At least 2500mm

On Sun, Dec 6, 2020 at 1:31 PM Bill Long <bill@...> wrote:

What focal length are you looking for? The 12.5 Planewave is likely something to look at. 

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From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bruce Donzanti <donza2735@...>
Sent: Sunday, December 6, 2020 10:06 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: [ap-gto] Upgrade Scope Suggestions for Imaging

 

I currently use a C11" EdgeHD with an 80mm Stellarvue APO triplet piggybacked onto it in my observatory.  The C11 sits on an AP1100 mount which is on an adjustable Pier Tech steel pier sitting on a cement pier which runs several feet underground up to the observatory.  So, the C11 is essentially 10 feet above the observatory floor.  However, I have grown weary of constant mirror shifting and flopping issues.  While I intend to keep it and fix the problem, I want to explore possible scope upgrades from the C11" EdgeHD despite it being very popular and producing great images.  My skies are Bortle 6 with average seeing.  I'd appreciate any suggestions, not going above $10k.