Plus, you get the optical system you want rather than the one the manufacturer forces upon you. I have always preferred long focal lengths. The image is better. That is why my scopes are such monsters in length. My 22 inch was f6.3. My 10 inch is f10, and my 12.5 inch is f8. ________________________________ From: Erik Hansen <erikhansen@thebluezone.net> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Sunday, August 11, 2013 10:05 AM Subject: Re: [Utah-astronomy] Image scale basics (WAS: Ring Nebula (M57) - Be prepared to squint) To me the biggest advantage to building your own tube assembly is that you can match the prime focus point to the eyepieces or other equipment you plan on using. Erik
I've actually been going down a similar road lately. I've been working on adapting my hi-def camcorder to the telescope. It has a non-removable lens, so eyepiece projection is my best bet. I finally found an adapter ring that allows me to directly couple the camera to my eyepiece-projection housing with T-threads. Preliminary daytime results have been good with the 80mm refractor, but I'm still lacking magnification without a lot of vignetting. I'm goint to try it with the C6 next. It has a much longer focal length.
On Sun, Aug 11, 2013 at 9:53 AM, Chuck Hards <chuck.hards@gmail.com> wrote:
There are also off-the-shelf solutions for the mass-produced telescopes and cameras, if one does a bit of sleuthing or is lucky enough to find a salesperson who understands what they want to do and can recommend the proper hardware.
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