I have a 6 inch Dynascope made by Criterion. I want to maintain the clock mechanism. It seems to be in good shape. There is a lot of play or looseness worm...
I've added another source in the group's Database: Meridian Telescopes. They're another source for components in general and OTA edge guards in particular. ...
Larry, I can't help you directly, mine still works famously--hopefully some experienced members in this issue will address it shortly. But have you done a...
Hi Larry, The two small "rods" are used to align the front and back plates of the clutch mechanism. They pass though holes in the front plate and screw into...
I have an RV6 that I'm just not using anymore and would like to sell. Bought it used about fourteen years ago and never use it. It's in great shape, and I'm...
Hi, I have just acquired a (I'm told) 1950's 4" Dynascope. I believe it is a Custom or a De Luxe based on the gray color of the OTA, the rotating rings on the...
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john rusho
jrusho@...
Dec 14, 2008 7:44 pm
Hi Keith, I can't help you directly, but I had a similar #K2-A with tubular steel legs. The drive appeared very similar to that of the RV-6, adapted to the...
Keith... I have an 8 inch Custom Deluxe. My past research indicates the drive in this model did not use cork or lube on the interface. It was designed to be ...
The clutch on a scope drive deals with static friction versus dynamic friction. It needs to have sufficient static friction to allow the scope to be driven,...
George, your comments are spot on. And my scope works exactly as you described. I remember the interface parts being aluminum but I haven't looked at the drive...
Hello to the Group. I finally installed the JMI focuser on my RV-6. After a couple weeks of cloudy skies I finally got a chance to observe with it. It's so ...
Do you have the mini-RCF? Did you get any of the optional extension tubes? What is the actual focal length of your primary (often written/scribed on the back...
Hi William, Yes it's the mini-RCF--Gawd what an improvement over the stock focuser! It was my father's telescope. He bought it when I was about 10. What an...
Venus (shot Dec. 18, 08) http://setisociety.org/venusMVI_1307rgbprocpt5rox.jpg 13% neutral density Moon filter, Celestron #96 filter, and a Light Blue filter....
Very nice work. May I suggest the next time you are after a bright object low in the sky that you go for a monochromatic filter? The problem is that the...
Hi George, actually filter-wise this image is net monochromatic (because only one color filter was used the light blue filter, the 13% Orion Moon Filter and...
Good reasoning, Jason. It is nice to have all that light. Maybe you can shop around for a regular photo filter of any color, just so it is a deep color that...
If anyone is interested, I just found this ad on Craigslist. 6" dia RV-6 Criterion Dynascope reflecting telescope with six lenses. Call 732 583-8636. *...
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john rusho
jrusho@...
Dec 20, 2008 1:59 pm
In my "imaging" days, I used a #23 deep orange for Venus. My reasoning was to eliminate the most scattered shorter wavelengths and narrow the bandwidth enough...
Hi guys I've been a lurker here for a while now and really enjoyed all the discussions. I "came back" to observing last year and fulfilled my dream of owning...
John, I have that paper and when I find it, I'll post it here. It is an excellent page. Geo. ... From: "john rusho" <jrusho@...> To:...
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dynascope@yahoogroups...
Dec 20, 2008 4:59 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the dynascope group. File : /FILTERS.jpg ...
8066
dynascope@yahoogroups...
Dec 20, 2008 5:37 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the dynascope group. File :...
8067
dynascope@yahoogroups...
Dec 20, 2008 5:41 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the dynascope group. File :...
I have added the paper by Charles Capen, the best Mars/Venus observer since Lowell, maybe ever, and the paper on Barlows by Ralph Dakin, who could be called...
First of all, thanks! I have to say the higher resolution was a lot nicer, once printed. I would ask that you post the higher res versions for that reason...
Just a Christmas card from space wishing you all a happy holiday The Christmas Tree Cluster http://setisociety.org/Christmas-Tree-Cluster-1fr.jpg Although this...
You got it! Geo. ... From: "Mathew" <aepod23@...> To: <dynascope@yahoogroups.com> Sent: Saturday, December 20, 2008 11:58 AM Subject: Re: [dynascope]...
I also did the same process on the Barlow lens jpg. The results are at: http://groups.yahoo.com/group/dynascope/files/BARLOW.pdf Any OCR errors I didn't...
