I never do. I transport my 20" mirror in its own box. Jan http://members.ziggo.nl/jhm.vangastel/Astronomy/ ... From: ljguise To: bigdob@yahoogroups.com Sent:...
Hi Linton, One way to look at it is that you have a mirror that weighs maybe 100-110 pounds sitting on a (probably) 27-point cell. That's about 4 pounds per...
I've transported my 25" obsession, with the mirror in the scope, for 12 year with zero problems. That's at least 36000Km (22300Mi). I did wear out several sets...
Westport Astronomical Society (Connecticut) had a 25" Obsession mirror damaged during transport. It had a good chip, and was later replaced. Not sure about...
I'd be more concerned about the mirror box and rocker box having a 100lb weight bouncing in them. So it depends on how well built those parts are, along with...
The most common cause of mirror damage seen while transporting obsession (as i have heard) from the mirror clips. Could that have been the WAS's problem? ... ...
Linton, Good restoration job on the 30" Starsplitter! Over the last ten years I've travelled over 30,000 km with a 25" scope. I move the scope in a van and...
Many thanks to all for your input on this. The front clip problem I had not considered I was more worried about damage to the supporting structures. I am...
All, I hate to say this.but a 30" mirror is significantly larger and much heavier than a 25". The mirror cell on my 30" Starmaster is removable and stored in ...
... Bob; Last fall I bought a 15"f4.5 torus mirror. It is very good and that is from a guy who always wanted a Zambuto. Cruel fate-I bought it a month before...
Hi, I just thought that I would stick in my 2 cents. A 35mm eyepiece will give you a 7.8mm exit pupil with that mirror. Any 35mm eyepiece will probably not...
I highly recommend the 31 mm Nagler. I love mine and for wide field views can't be beat - colour in the stars, pinpoint stars across the field, etc. Combine...
I really like the William Optics UWAN series, and I actually perfer the UWAN to the Nagler 32, I feel like the field is flatter and less distorted. Maybe it's...
... *************** I have been told that this design cannot be applied to a focal length longer than about 22 mm. I don't know why, but it has something to do...
Including production tolerances, that may be pretty close to correct. Per a conversation last year at Stellafane with Paul Dellachaiae (Televue employee and...
It has more to do with the 2" Max diameter. I am sure that if eyepieces went to 3" or 4" a lot more could be done. Mal Mal Speer Malco Precision Products ...
An EP works like a jeweler's EP and just magnifies your view of the focal plane (the image formed by the primary just in front of the EP). So an EP showing a...
It is 1100, shipping included. It has never seen first light! Feel free to browse it in ebay and know more about the mirror set (primary and secondary) and the...
There are physical restraints: 100 deg = 1.75 radians (angle, not eyepieces;-) and thus the FOV=1.75 times the focal length (assuming constant radial...
Combining a few things from the Televue web site produces some interesting results on the question of how long the ep focal length can be with the Ethos...
... Which is why, in practice, you just use the barrel diameter (minus wall thicknesses) as the max possible field stop. For fast scopes, you'd have a...
Roy, Seems your calculations match mine. ... As I see it, the "fied stop" to consider is the "apparent" field stop as seen from outside the EP - hold one with...
... From: "Nils Olof Carlin" <nilsolof.carlin@...> ... I just took the long way to get there. But, yes, the field stop (your true field width) = f.l. *...
I'm considering purchasing an Orion XX12 truss dob with the accessory cases. I'll also need a scope cover for when its left set up at star parties. Orion has...
I would consult with Astrosystems or Floyd Blue of Blue Skies. Astrosystems may have a stock cover for the scope and Floyd will make a custom one for you. ...
This makes me wonder - there are focuser manufacturers that are making 3" and 4" diameter focusers, to accommodate larger imaging chips - what are the odds...
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