Fred Ley
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Abell 1656 από Σκίνακα 9/5/2010
Fred Ley απάντησε στην συζήτηση του/της Μανούσος σε Παρατήρηση Βαθύ Ουρανού
The universe never fails to please. It is refreshing to see an image where the galaxies may outnumber the stars in the field. -Fred -
That's an nice image of M104, just floating out there in the depths of the univere. -Fred -
Here are various views of a dedicated Ha telescope for solar observing. -
Brandon... να τους πάρω ή όχι; Για πείτε γνώμες...
Fred Ley απάντησε στην συζήτηση του/της giorgosgr σε Προσοφθάλμιοι φακοί
Glad to hear that everything went smoothly with the eyepieces. Since I am currently operating with the aid of public transportation, getting to Evia may be somewhat difficult at the present time. I do appreciate the invitation though. Clear Skies, Fred -
That is one real nice image of star trails. The captured movements of the red flashlight near the telescope reminds me of a dancing fire. See that you captured three small meteors too. I would suggest that you send the image in to APOD, if you havn't already done so. Man, that is a lot of stars you have there. Again, real nice. Kudos! -Fred -
Yes, tripods do use 1/4-20 screws. If you need some 1/4-20's and can't find them, send me a message. I have quite a few of them in various lengths. -Fred
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Brandon... να τους πάρω ή όχι; Για πείτε γνώμες...
Fred Ley απάντησε στην συζήτηση του/της giorgosgr σε Προσοφθάλμιοι φακοί
Hi George, Well, since you are located in Athens, if you want to I would be more than happy to meet up with you and bring my Brandon's along in the even tthat you would be interested in viewing through them. Of course one has to pick a clear night. -Fred -
Here is an interesting modern replica of a 17th century long focus telescope. This was made by Robert May of California and has a lens with a diameter od 4.25-inches and a focal length of 200-inches (as wide as the Mt. Palomar mirror) which makes it an F/47 system. It has 3-inch eyepieces and by making adjustments, one can track objects for 20 minutes. -
Here is a nice compact 6-inch telescope brought to RTMC in 1988 by David Levy of Comet Shoemaker-Levy 9 fame (you know, the one that slammed into Jupiter in summer of 1994). When sweeping the skies for comets, he would adjust the altitude of the telescope by winding the fishing rod reel. -
Here is a Meade 8-inch Schmidt Cassegrain with an off-axis filter and a Daystar Ha filter for solar viewing. Slide taken in 1983 at RTMC. -
Here is a compound optical system on a Mountain Instruments German equatorial mount. As one can see it is set up for Ha observation of the Sun with an off-axis filter and a Daystar filter at the eyepiece end. For those interested, Mountain Instruments is at www.mountaininstruments.com The image was taken in 2003 at the RTMC. -
I can see quite a few belts on the planet. The Cassini division is not as prominent but is there. Good job. -Fred -
Glad you enjoyed the image. Speaking of images, I visited your web site and your darwings of the prominences are are just outstanding-at least to me. That is some excellent "sketching". Keep it up. -Fred -
I have all three versions of the Atlas and they all serve their purpose. I do enjoy the "black stars on white background". With that version one can make photo-copies of the pages and then out in the field objects can be marked off with a highlighter as they are observed. Thus, one has a record of objects that they have viewed. I do need to state that I prefer the "white stars on the black background" version. -Fred
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Here is a view of the Coronado 90mm Ha telescope with binoviewer. Taken at the 2003 RTMC.
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Questar is a great instrument. But many come to realize that there is a limit to what the eye can see and if one makes an optical system accurate to an extremely high degree it looks good on paper but can not be distinguished by the eye. I havn't had the good fortune to look through or visually inspect a 12-inch model yet. Not to many were made. -Fred -
As far as I am concerned, the best thing to do is to look through a display model in a store and then make a decision. Naturally one also reaches a decision by the makers reputation and input from other users, but if you can look through them prior to making the purchase is always better. Years ago I had ordered a 20x80 and the first two units I had to return due to issues with the optics. A 7x50 that I bought more recently, about 8 years ago, had an issue with collimation as I had two images of Vega in my field. All though both firms were reputable, defective units can slip through inspection. From my experience most people tend to shy away from zoom eyepieces and binoculars. But, if you are happy with the product and the performance it delivers, then go ahead and get it. -Fred
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Here is something that would be nice to own for sweeping the Milky Way and anything else in the sky. Kodachrome 64 slide, 1985 RTMC. -
Here is an image of the Quester 7. An excellent Maksutov instrument. It also comes in a 3.5-inch and 12-inch size too.
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Here is a very comfortable way to observe with binoculars. Kodachrome 64 slide taken in 1984 at RTMC. -
Brandon... να τους πάρω ή όχι; Για πείτε γνώμες...
Fred Ley απάντησε στην συζήτηση του/της giorgosgr σε Προσοφθάλμιοι φακοί
George, I have four Brandon's, 8mm, 12mm, 24mm and the 32mm along with the 2.4x Dakin barlow from Vernonscope. The eyepieces are wonderful to look through even thought they are about 40 years old. Here is a link to an article on Cloudy Nights at http://www.cloudynights.com/item.php?item_id=2419 that you may find of interest. Oh, the one thing that I discovered on my eyepieces is that they do not accept the common 1.25-inch threaded color filters, like the ones sold by Celestron, Meade, Parks, Lumicon, etc. I do have an old orange Vernonscope filter that only fits their eyepieces. I do not know if they have changed their thread size over the years in order to allow their eyepieces to accept all 1.25-inch filters. If we lived closer we could meet and you could look through them prior to making the purchase. You are at a slight distance from Athens though, which may make it a little hard to meet. -Fred -
Here are three PARKS Newtonians. 8, 10 and a 12.5-inch. Slide taken in 1985 at RTMC. -
Ohhh Boy! Yes, one has to be careful at all times when dealing with the Sun. There is a possibility that the Sun may have focused some of its energy on another component in the tube and that is what you probably smelt. It could be a plastic component. You mention that the secondary is glued in place? Can you provide any images of the damaged areas? -Fred
