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Carl Kolchak
professor emeritus
   
Reged: 08/02/06
Posts: 546
Loc: Northeast, Florida
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Hi all,
As promised more pictures and first light, sorry for the length but I got excited! 
After several days of rain and cloudiness I got a break last night and give my new Tasco Cosmic 6TE-5 a first light. My regular observing sites are usually from my driveway or from the condo pool area, it just depends on which direction I need to view my targets.


Last night my main goal was to see if this new addition would perform on the Moon, one of my favorite targets. Unknown to me, my wife had alerted a few neighbors that I would be at the pool with a new telescope so I was greeted with 6 smiling friends full of anticipation that I would have a big ole telescope that would show the American flag on the Moon surface. You should have seen their faces when I walked out the back door carrying the Tasco Cosmic 6TE-5 in one hand and my favorite soft drink in the other!

The clouds were still popping up here and there. Finally about 9PM the clouds began to drift toward the beach and the Moon was positioned above our clubhouse. Our pool area has a few small tables, perfect for this setup.

The first thing I noticed was the tabletop tripod was not what I was use to when it comes to a scope mount. The feet are threaded and I have no idea what for. Any one know why these are threaded? Anyway the metal feet slipped all over the table and could end up as a disaster. So a trip to Home Depot earlier in the day fixed it using 3 spring door stoppers and removing the rubber tip and slipping them over the threaded ends of the tripod. Works like a charm!

The Tasco Cosmic 6TE-5 comes with three .965" eyepieces each in a nice plastic bolt case. The eyepieces include a H20mm(30x), H12.5mm(48x), and a H6mm(100x). I do like the magnifications these eyepieces give you but after using them for a few minutes on the Moon I soon realized they were not up to par, each exhibited a cloudiness in the image. Luckily I had a set of Meade Modified .965" eyepieces from a Model 300 purchase. I put away the Tasco EPs and for the rest of the night I used the Meades and was very pleased with their performance. The Meades, a Ke22mm(27x), HM12.5mm,(48x) HM9mm(67x), HM6(100x), and a SR 4mm(150x), were absolute winners for this small scope.

I had set the finder scope up on a distant street light cover and discovered that using the finder is horrible. The finder is a 4x15 finder with a cross hair of some type of very fine thread. But getting your eye down to the finders level with the diagonal in the scope was to me next to impossible. Most of the time I would remove the diagonal and sight the finder scope in and then replace the diagonal very carefully.

The night was hot and sticky but decent enough seeing to make this a valid first light for me. The temp was about 85*. The transparency was more of a problem because at times there would be a slight haze in the air and sometimes the Moon would be engulfed in the haze. But in the in between times I had a great time using this little gem. My friends and neighbors had seen me "test" scopes before so they waited patiently until I pronounced this scope a winner and then they lined up to look at the Moon themselves. Plenty of oohhs and aahhs and "I can see a crater" and "what was the name of those dark areas again?"
My time with the Moon was better than expected with all the EPs but found the 4mm was too much and revealed a dim and mushy image. However, Schiller was a real showoff. I really love the southern region and all the formations there. The large ray from Tycho that cuts across Mare Nubium appeared as a 3D gully. Plato was earning its older name of the "Greater Black Lake". I will say that tonight (July 4th) the 4mm did pretty well on the Moon. Dim but no mush.
As the night progressed I aimed the Cosmic at Saturn, setting in the LP of Jacksonville and was surprised that I couldn't make out the "ears" in the Ke22mm. The image was really tiny but clear enough for me. I eased up the magnification using the HM6mm (100x) and the "ears" were more defined. Using the SR 4mm (150x) made the image a total mushy mess.
The few stars I looked at with the Tasco 6TE-5 included Vega, Deneb, Antares (washed out by Luna) and a few others all focused to pinpoints. Mizar was split with the Ke22mm. What a gorgeous sight. The Moon and the light pollution were washing out so many of my favorites, like Albireo either washed out or blanketed with clouds. 
When it came to color I noticed no CA on any object I tried. I am very happy with this purchase and will use this scope many times over the coming years. However, there are two, maybe three shortcomings with this scope. The tripod, the finder scope and, in my case, the eyepieces didn't live up to my expectations.
Now for a few questions for the more experienced classic scope users out there:
Why are the feet on the table tripod threaded?
Please, please can someone recommend a better/bigger mount?
Can you recommend a different finder? Or how do you handle the finder as is? Anyone know what the FOV is for this 4x15 finder?
peace & clear skies,
-------------------- Richard H.
Antares 105mm f/9.5 Elite Series Refractor
AstroTelescopes 102mm f/7 Refractor
Orion ShortTube 90mm f/5.6 Refractor
Meade Model 300 80mm f/15 Refractor
Tasco Cosmic 6TE-5 50mm f/12 Refractor
Orion SkyView Pro 8" Intelliscope
Orion Scenix 10x50 Binoculars
Zhumell SuperGiant 20x80 binoculars
NightSky Journal
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RLTYS
Carpal Tunnel
   
Reged: 12/18/04
Posts: 2141
Loc: New York (Long Island)
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Rich
I've never seen the 6TE-5 mounts with threaded legs. The legs on mine aren't threaded, just slightly rounded at the bottom. Wonder if yours is a later model? As for the finder, once it's aimed and tightened it seems to work fairly well. Admitedly its small apature does put limitations on what you can see.
Once again good luck. Rich (RLTYS)
-------------------- 10" F4.8 Refl.
4" F5 Refr. (Genesis)
3" F4 Celestron FirstScope
50mm F12 Refr. (Tasco #6TE-5)
12x63 and 10x50 Binoculars.
"I want to do more then just look."
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desertrefugee
Pooh-Bah
   
Reged: 08/06/07
Posts: 1212
Loc: Arizona
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Quote:
Please, please can someone recommend a better/bigger mount?
Great report, Richard. I thoroughly enjoyed it. As to the mount. While the threaded holes for the yolk mount are not 1/4-20 (wouldn't it be great if they were?) it might be possible to craft an adapter of sorts that would allow the use of a standard tripod.
That's what I'd look into.
-------------------- "Illimitable ocean, without bound, Without dimension, where length, breadth, and height, And time, and place are lost." - Milton
-Darrell
Reflectors - 76 to 305mm (f4.7 to f9.2)
Refractors - 50 to 120mm (f5 to f16.7)
Binoculars - 6x15 to 22x100
N. Phoenix, AZ
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David E
Post Laureate
   
Reged: 05/25/06
Posts: 3020
Loc: North Carolina
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Great report and photos! In honesty I'd consider getting one of those Orion RDF's. But another option might be to get one of those 5x25 finderscopes from Telescope-warehouse.com or their EBay site. Maybe some extension legs were available for extra purchase when the scope came out, and that's what the treads are for. Seems to me I have a classic somewhere with screw-on extension legs.
-------------------- David E
If you keep a stack of old Orion catalogs in your bathroom, you might be an astro-redneck.
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davidmcgo
professor emeritus
Reged: 10/09/04
Posts: 563
Loc: San Diego, CA
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My first telescope was one of these many years ago, I thought about bidding on this one on E Bay and it looks in perfect shape! I let it pass since the house is filling with new components to rebuild an old 8" Meade into a new tube and I don't want the wife too mad at me!
The one I had borrowed as a child still used the yoke but that was removed from the tripod and simply bolted (using the one under the tripod head) to a little piece of wood mounted on a camera tripod column a little offset from center. Worked quite a lot better than the tabletop tripod.
Dave
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strdst
scholastic sledgehammer
Reged: 03/23/08
Posts: 830
Loc: Oregon USA
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Richard,
You have to remember that people were much smaller back when this was made and at that time, everything was probably properly proportioned for standing up and viewing. With that said, (which isn't easy) what measurement is the diameter of the yoke shaft as it goes into the base (?) for the tripod legs. I had asked you that once... sorry if I'm repeating here, I just couldn't find where I had asked. The yoke shaft for my Tasco 9te has a diameter of 7/8" and might offer a table-topless alternative. Of course if the shaft measurements are the same I'll be kicking myself for not bidding on your scope 
other Keith
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Carl Kolchak
professor emeritus
   
Reged: 08/02/06
Posts: 546
Loc: Northeast, Florida
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Rich(RLTYS) said:
Quote:
I've never seen the 6TE-5 mounts with threaded legs. The legs on mine aren't threaded, just slightly rounded at the bottom. Wonder if yours is a later model? As for the finder, once it's aimed and tightened it seems to work fairly well. Admitedly its small apature does put limitations on what you can see.
Thanks Rich(RLTYS). Not sure of the early or lateness of the model, most documents have a copyright of 1969. This may or may not date the scope though.
Darrell said:
Quote:
Great report, Richard. I thoroughly enjoyed it. As to the mount. While the threaded holes for the yolk mount are not 1/4-20 (wouldn't it be great if they were?) it might be possible to craft an adapter of sorts that would allow the use of a standard tripod.
That's what I'd look into.
Thanks Darrell. I definitely would love to shore up the mount some more, somehow.
David E. said:
Quote:
Great report and photos! In honesty I'd consider getting one of those Orion RDF's. But another option might be to get one of those 5x25 finderscopes from Telescope-warehouse.com or their EBay site. Maybe some extension legs were available for extra purchase when the scope came out, and that's what the treads are for. Seems to me I have a classic somewhere with screw-on extension legs.
Thanks David E. Looking at the finder mount, it looks like it may take a GLP. I may give that a try.
Dave said:
Quote:
My first telescope was one of these many years ago, I thought about bidding on this one on E Bay and it looks in perfect shape! I let it pass since the house is filling with new components to rebuild an old 8" Meade into a new tube and I don't want the wife too mad at me!
The one I had borrowed as a child still used the yoke but that was removed from the tripod and simply bolted (using the one under the tripod head) to a little piece of wood mounted on a camera tripod column a little offset from center. Worked quite a lot better than the tabletop tripod.
Dave, I hate to say it but I am glad you didn't bid on it but I do hope you find one like it soon. It really is a nice scope and it has the classic look to it too.
other Keith said:
Quote:
You have to remember that people were much smaller back when this was made and at that time, everything was probably properly proportioned for standing up and viewing. With that said, (which isn't easy) what measurement is the diameter of the yoke shaft as it goes into the base (?) for the tripod legs. I had asked you that once... sorry if I'm repeating here, I just couldn't find where I had asked. The yoke shaft for my Tasco 9te has a diameter of 7/8" and might offer a table-topless alternative. Of course if the shaft measurements are the same I'll be kicking myself for not bidding on your scope
Hi other Keith, Start kicking. I guess it's all the extras we have in our food that make us taller! Sorry I didn't get back to you about the shaft. But I did take a measurement with a ruler, that's all I have, and it is 7/8" or very close if its metric(?). I hope this helps find a table-topless alternative for this scope.
Could you post an image of the mount used with the 9TE? Are there other make/models that would be similar to the 9TE? Thanks.
peace & clear skies,
-------------------- Richard H.
Antares 105mm f/9.5 Elite Series Refractor
AstroTelescopes 102mm f/7 Refractor
Orion ShortTube 90mm f/5.6 Refractor
Meade Model 300 80mm f/15 Refractor
Tasco Cosmic 6TE-5 50mm f/12 Refractor
Orion SkyView Pro 8" Intelliscope
Orion Scenix 10x50 Binoculars
Zhumell SuperGiant 20x80 binoculars
NightSky Journal
Edited by Carl Kolchak (07/05/09 07:21 PM)
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strdst
scholastic sledgehammer
Reged: 03/23/08
Posts: 830
Loc: Oregon USA
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Richard,
I'd love to send you a photo of the cast tripod piece, but my camera seems to have bit it. It may be awhile before I can afford another one.
There are a lot of red tube alt/az Tasco 60mm scopes for sale for very little money. Maybe someone here has one they could measure the shaft on. If that is something that hasn't changed much over the years, you might be able to find a scope, and just keep the wood legs and cast tripod parts. It seems like $20-$30 is often the asking price on CL. And even at that price the ad expires or resurfaces over and over. Good luck.
other Keith
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