Hi! The best way to test any telescope is with the star test as described in the book "Star Testing Astronomical Telescopes" by H.R. Suiter. It is a bit...
305
Astrotra@...
Apr 2, 2000 10:28 pm
306
Phil Harrington
pharrington@...
Apr 3, 2000 4:34 pm
Yup, I remember it well! :-) Phil Harrington http://philharrington.homepage.com ... in ... 17" ... about ... darker ... Harrington's...
307
Skywatcher
skywatcher@...
Apr 4, 2000 3:14 pm
Hi all, Since the implementation of the eGroups upgrade this past weekend, it seems that the only functionality available is view messages and post. Am I...
308
Les Blalock
lcb911@...
Apr 4, 2000 8:22 pm
At lunch today I went by the library to do a little research on an old, non-Criterion telescope and was looking through microfilm copies of the old Science...
309
Bill Boyd
billandjane@...
Apr 8, 2000 6:26 am
Hello all, I'm New here. Couldn't believe so many people had these scopes. I bought my 4" in the summer of 1954. Saw an add in "Scientific American", and just...
310
Tom Collier
tcollier@...
Apr 13, 2000 1:19 am
Hello Everyone, The flow of messages has certainly slowed since the implementation of the "new and improved" site. Tom...
311
Marshall Musser
mrmusser@...
Apr 14, 2000 2:35 pm
Ever since the new format I have not been able to use egroups with my computer at home. It is an older one but works fine in most other places. The available...
312
prc29@...
Apr 15, 2000 1:06 am
After refurbishing two 6-inch dynascopes I have left over (that I am not going to be using): A Criterion three-eyepiece rotating turret A Criterion 4mm...
313
John Gretchen
jng3@...
Apr 16, 2000 5:48 pm
I've added a folder with an image of the moon taken with my rv-6. It's in the "files" section of the group's page. Please check it out at your leisure. thanks-...
314
Glenn Smith
gnsmithmd@...
Apr 18, 2000 12:24 pm
Greetings, Remember at the end of last month how Keith was castigated for selling a Criterion RV6 Dynascope on Astromart. Well, I am glad that he did because I...
315
Les Blalock
les@...
Apr 18, 2000 1:54 pm
Hi Glen, Welcome to the group and congratulations on your new RV-6. The capabilities of it can last you a lifetime - try not to get caught up in the...
316
kdaly10475@...
Apr 18, 2000 2:38 pm
In a message dated 4/18/00 8:25:28 AM Eastern Daylight Time, gnsmithmd@... writes: << Obviously, I don't want to damage the mirror in any way whatsoever. I...
317
CLOCKREPAIRMAN@...
Apr 19, 2000 6:37 am
Does Any one restore and collect There old 6" and 8" reflectors?...
318
Les Blalock
les@...
Apr 19, 2000 7:19 pm
Last Saturday while the wind blew 40 mph under cloudy skies I decided to critically collimate my RV-8. Over the past couple of years I have tinkered and...
319
Marshall Musser
mrmusser@...
Apr 21, 2000 3:10 am
In reference to the message regarding the misaligned focuser. It is not really that odd that the focuser needs better alignment. Most scopes could use that...
320
Tom Collier
tcollier@...
Apr 21, 2000 10:00 pm
Having owned two RV-6's I can attest to the fact that they were lacking in mechanical quality. The bearings (or lack of) were shoddy at best, which resulted in...
321
dynascope@egroups.com
Apr 23, 2000 6:21 am
Enter your vote today! Check out the new poll for the dynascope group: What has happened to the volume of message traffic on Dynascope Group? (voting goes...
322
Frank Cernik
old_dog_zero_one_56@...
Apr 23, 2000 6:49 am
Hey everyone! I have decided to conduct a pseudo-scientific poll of the Dynascope group members (Those we can apparently reach that is). Check out my poll if...
323
kdaly10475@...
Apr 23, 2000 1:25 pm
In a message dated 4/23/00 2:50:25 AM Eastern Daylight Time, old_dog_zero_one_56@... writes: << I can't help it, I got a new TeleVue Plossl, Barlow &...
324
Les Blalock
les@...
Apr 23, 2000 3:24 pm
I've cast my vote but my response raised a few questions in my own mind... Just what kind of traffic do we want on the list? Only Dynascope-related equipment...
325
speedstr@...
Apr 23, 2000 3:43 pm
Hello! I have two questions that someone may have an answer for: 1. I have an RV-6 that was made in mid 1978. Does anyone have ideas about what the...
326
simpsondg1325@...
Apr 23, 2000 4:12 pm
I don't have an answer to either of these. However, I had a chip of paint (about 1 square inch) missing from my RV-6 tube. I recently repainted the missing...
327
Tom Collier
tcollier@...
Apr 23, 2000 4:39 pm
... Hello, I bought an RV-6 which was mfg. in 1973 and also one which was made about five years later. The earlier version seemed to be a bit better optically...
328
izar@...
Apr 24, 2000 2:38 am
Does any one have an RV-8 or do you all have RV-6's? I have an RV-8 OTA which has an excellent mirror. Is there any way to date the OTA, and/or mirror? I have...
329
izar@...
Apr 24, 2000 2:43 am
I also have a complete Ed.Sci. 6" f-6 Newtonian (red tube) on the very heavy cast aluminum fork mount. I have partially restored this scope and have made...
330
Astrotra@...
Apr 24, 2000 2:56 am
I was at the NE forum also. I missed James Earl Jones. Apparently he is also into astronomy. We Criterion guys should try to meet each other at some of these...
331
Skywatcher
skywatcher@...
Apr 24, 2000 5:38 am
... Hi Speedstr. It is true that there were quality control issues associated with the RV-6's in their latter-production years. As to whether or not this ...
332
Romer, Jan
RomerJ@...
Apr 24, 2000 12:33 pm
maybe we could get together at Stellafane and extoll the virtues of our Dynascopes. Jan Romer...
333
Les Blalock
les@...
Apr 24, 2000 2:14 pm
Hi Bill, I have an RV-8 and have moved it to a Dob mount. (see http://www.cableone.net/les/astro/ ) I don't know any way to date the OTA and/or mirror...
