I still use my homemade solar filter made with the Tuthill Mylar material. If any of you come to the ATM session on 9/17, I'll show you the filter and we can check out the sun also. I use it on my 8" dob. When I was making the filter, I spoke to him on the phone and wanting to "wind" him up a little, I told him I looked through a single layer at the sun, and I think he about fell off his chair. He said something like, I hope you can still see out of that eye. All was well and I had it correctly set up with both layers facing each other. Mat -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Jim Stitley Sent: Friday, September 09, 2011 2:44 PM To: Utah Astronomy Subject: Re: [Utah-astronomy] Need solar filter material Yes, it did work well but did look amateurish - I didn't mind the blue color - for me seemed to enhance the sunspots - was 'cool' on the eyes - Patrick - yes, one of us is older than ( fill in thne word ). I lived in NJ when I bought my first C-8 from Roger. Got a couple of his homedmade gadgets - looked very homemade but worked - like his ()truly) gunsight North Star aligner. He used to do free laser collimation if you took your scope to his house - very precise. Trippy guy - perhaps startdust in his cerebral veins. PEACE - I miss SLAS since we retired to Sedona last May. Jim --- On Wed, 9/7/11, Patrick Wiggins <paw@wirelessbeehive.com> wrote: From: Patrick Wiggins <paw@wirelessbeehive.com> Subject: Re: [Utah-astronomy] Need solar filter material To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Wednesday, September 7, 2011, 9:24 PM Ah yes, Roger W. Tuthill. We're dating ourselves here people. I also remember that his filters looked so bad that he included a note saying that they looked bad but worked fine. I had one for my C-8. I did not like that it made the Sun look blue but it did show sunspots rather well. And it was cheap. patrick On 07 Sep 2011, at 12:51, Chuck Hards wrote:
Wow, a blast from the past there, Jim!
I remember "Solar Skreen", lol. Worst resolution ever, it wasn't even close to diffraction limited. Wasn't the material dimpled? But I think Tuthill was the first to actually popularize mylar.
On 9/7/11, Jim Stitley <sitf2000@yahoo.com> wrote:
Years ago Roger Tuthill used 2 nesting aluminum pie pans with holes cut out and the material wedged in between. I do NOT KNOW if he had any patent on it or not, but don't think so. ALSO, be sure you have the right type of flexible mylar film to protect the eyes. Chuck Hards might be able to advise. Not all mylar is safe. Tuthill sandwiched 2 sheets together I think with the silvered sides facing one another to prevent scratching and leaking sunlight. Be SURE to a fix the material and pie pans so there is NO chance thay might separate at the wrong time. Best to epoxy together. Then find a round plasrtic lid pie cover to store it in. Good Luck and Be Sure and Be Safe!!!
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php ---------------------------------------------------------------------------- This message and any included attachments are from Siemens Medical Solutions and are intended only for the addressee(s). The information contained herein may include trade secrets or privileged or otherwise confidential information. Unauthorized review, forwarding, printing, copying, distributing, or using such information is strictly prohibited and may be unlawful. If you received this message in error, or have reason to believe you are not authorized to receive it, please promptly delete this message and notify the sender by e-mail with a copy to Central.SecurityOffice@siemens.com Thank you