Patrick,
From my experience, you get finer resolution with the full aperture. I have no problem in using a Baader film filter on the refractor as long as the filter is carefully inspected before each use.
Thanks Rodger C. Fry -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Patrick Wiggins Sent: Friday, March 15, 2013 3:39 AM To: utah astronomy listserve utah astronomy Subject: [Utah-astronomy] Sun viewing question Chuck Hards was kind enough to offer to make a custom fitted white-light solar filter for SPOC's Bogdan refractor so I brought that up at last evening's SLAS board meeting. There was some discussion about whether any such filter should be make of mylar or glass (to be determined) but one thing that I'd like discussed here is the size of the filter itself. Usually when it comes to telescopes I think "bigger is better" but in this case I'm wondering if it would be better to go full aperture (200mm) or would we really gain that much by going full aperture over something smaller. Opinions? patrick _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".