The focal length of an 18" f/4.5 mirrorPosted By Bill Byrd |
18 X 4.5 = 81"
Bill
Bill
Posts Made By: Bill Byrd
October 5, 2002 01:49 PM
Forum:
Equipment Talk
October 31, 2002 01:41 AM
Forum:
Telescope Making
What's the WORST scope you ever built?Posted By Bill Byrd |
For me it was a finder scope made out of a 35mm binoc objective, some cardboard tubing and a diagonal/EP from a truly horrible 20mm finder. The whole thing was held together with duct tape. Classy looking! It worked but not very well. I've gotten better at the ATM game. Here's my current "big gun" on a commercially made platform.
Bill
Bill
December 7, 2002 06:12 PM
Forum:
Telescope Making
Truss Connectors Info NeededPosted By Bill Byrd |
I've used the Moonlite ball and sockets. Excellent results on my 14.5" scope.
Bill
Bill
January 18, 2003 01:28 PM
Forum:
Equipment Talk
Perfect City Scope?Posted By Bill Byrd |
Chuck:
This is Bill in SA. Contact me.
Bill
This is Bill in SA. Contact me.
Bill
March 4, 2003 01:34 AM
Forum:
Equipment Talk
Portable Scope For Backpacking?Posted By Bill Byrd |
I'm getting in late on this thread but I used to backpack every summer in the areas N of Durango, CO. I always too a 4.25" f/4 tube reflector and one EP. Total weight was about 3 pounds, and that was all I wanted to carry on multi-day hikes at 10-11K'. It rode rolled inside my sleeping bag ground pad, strapped on top of the pack. I used it by sitting on the pad with my legs crossed under me and the scope cradled in my arms. Yeah, a mount would have been nice but like I said, I wanted to travel light. Views of the MW at 9K' are wonderful in a little richest field scope like a 4.25" f/4. My .02. Let us know what you decide and how it goes on the trip.
Bill
Bill
April 12, 2003 08:45 PM
Forum:
Equipment Talk
April 15, 2003 04:38 AM
Forum:
TeleVue
Naglers-Panoptics with or without Parracor?Posted By Bill Byrd |
The Paracorr helps *all* EPs when you have a "fast" mirror. I consider it a "must have" for any mirror faster than f/5. Others may disagree but I like to have a corrected field of view as far out to the edge as possible and the PC gives me that. YMMV.
Bill
Bill
April 18, 2003 02:08 AM
Forum:
Deep Sky Observing
Observing in AustinPosted By Bill Byrd |
Isn't Canyon Of The Eagles park on Lake B? Is that where the AAS goes? Just asking because there is an observatory there and the park is supposed to be geared toward observing, so that would be a good place. Yes, dew will be a factor in S TX. After the first time out with a Mak-Newt, I bought a Kendrick system the next day. Small proce to pay to observe all night when the atmosphere is really good.
Bill in San Antonio
Bill in San Antonio
May 1, 2003 09:23 PM
Forum:
Wildlife Photography
Insect PatrolPosted By Bill Byrd |
He (or she) is a beaut! We always called those tree lizards.
Don't see them much any more here in S TX. No horny toads either. On the other hand we have lots of those translucent lizards that come out after dark. I'll try to get a pic.
Bill
Don't see them much any more here in S TX. No horny toads either. On the other hand we have lots of those translucent lizards that come out after dark. I'll try to get a pic.
Bill
May 2, 2003 04:46 AM
Forum:
Equipment Talk
Filter HolderPosted By Bill Byrd |
Another angle.
Bill in SA
Bill in SA
Funding Member
