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Brooklyn
scholastic sledgehammer


Reged: 07/24/08
Posts: 870
Loc: Central New Jersey
Re: Your Celestron SCT Pick new [Re: Stephen S]
      #2587477 - 08/17/08 10:01 PM

Quote:

One of the advantages of the SCT over the dobsonian is that it is easier to get GoTo and tracking with an SCT. That said, there are a variety of 'push to' systems being developed. If I was strictly interested in visual, I'd probably go with ...




Although that might be true to a point, there are still many problems inherent in the Meade Go-To system.

If the person doing the goto setup did not train the drives, enter all the perfectly accurate information, and perfectly align the scope and alignment stars, the GoTo will be far from on point.

There are many little tweaks one can do to improve meade goto functionality, and these are all posted up by Dr. Clay sherrod at weazners etx website.

http://www.weasner.com/etx/techtips/etx_tuneup3.html

Now, say I was a beginner with the same scope and did not know of the weazner/dr clay website...i would be hopelessly lost as to why my goto isnt accurate. Most likely, people blame meade for a broken goto system, when in fact it is their own inexperience and lack of knowledge that is making the goto system not work. That lack of information, mixed with meade's notoriously bad instruction manual, leads to potential bad news.

Make no mistake, when i first received my telescope the goto was completely off. It took many weeks of reading, learning, and tweaking to finally get the scope in near perfect working order.

I think that once this technology is given a good few years to really evolve, we will see very nice goto systems right out of the box that last for decades without maintenance.

--------------------
Meade 8.25"(209.55mm) LX-90 EMC (SCT)

Albert Einstein =>
“Intellectual growth should commence at birth and cease only at death.”
“If you can't explain it simply, you don't understand it well enough.”


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JerryWise
Postmaster
*****

Reged: 12/26/03
Posts: 6850
Loc: Lexington, SC
Re: Your Celestron SCT Pick new [Re: Brooklyn]
      #2587522 - 08/17/08 10:29 PM Attachment (26 downloads)

Quote:

..........
All pictures made by astrophotograhy are more or less very similar to one another, that is why this is an exception to the rule. A picture taken in 1999 by some random person, is going to look almost the same as the picture taken in 2008 by a different person, even if the two pictures were taking with completely different gear and telescopes. Sure the brightness or contrast might vary a bit, but the picture itself will be identical (except for the angle of course).
............




Once you get into the hobby you see it a different way. You may catch something that interest just you. It's a great accomplishment personally. I really love seeing the shock waves around Holmes and the disturbances around the comet itself. This was only visible this one time. Likely never to be exactly this way ever again. You couldn't see that with the naked eye (no camera) using any commercial scope. Events like this are constantly going on. It's why I love the effort.

Oh, this is with my favorite Celestron scope. A C-11 XLT on an NJP at the time of the photo.

--------------------
Jerry
LX200ACF 14", Tak FS 152 & TOA 150
AP-1200 & Mach1




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Brooklyn
scholastic sledgehammer


Reged: 07/24/08
Posts: 870
Loc: Central New Jersey
Re: Your Celestron SCT Pick new [Re: JerryWise]
      #2587851 - 08/18/08 05:47 AM



Ok ill eat my own words just this time...maybe not ALL astrophotographs are very similar.

--------------------
Meade 8.25"(209.55mm) LX-90 EMC (SCT)

Albert Einstein =>
“Intellectual growth should commence at birth and cease only at death.”
“If you can't explain it simply, you don't understand it well enough.”


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JerryWise
Postmaster
*****

Reged: 12/26/03
Posts: 6850
Loc: Lexington, SC
Re: Your Celestron SCT Pick new [Re: Brooklyn]
      #2588038 - 08/18/08 09:11 AM

No need Mr. Brooklyn. It's a big big Universe out there.

--------------------
Jerry
LX200ACF 14", Tak FS 152 & TOA 150
AP-1200 & Mach1




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Kolenka
professor emeritus
*****

Reged: 06/01/08
Posts: 593
Loc: Seattle Area, WA, USA
Re: Your Celestron SCT Pick new [Re: Brooklyn]
      #2588159 - 08/18/08 10:40 AM

Quote:


All pictures made by astrophotograhy are more or less very similar to one another, that is why this is an exception to the rule. A picture taken in 1999 by some random person, is going to look almost the same as the picture taken in 2008 by a different person, even if the two pictures were taking with completely different gear and telescopes. Sure the brightness or contrast might vary a bit, but the picture itself will be identical (except for the angle of course).





The same can be said for tourist photos of the Grand Canyon or other natural wonders that have been there for generations and likely will remain for a few more generations.

Part of the draw is that the photo becomes mine. I did it, with my gear, and my skill. The sense of ownership of the effort involved is what drives some people. In my case, it is hard to share my viewing with family who live far enough away it isn't feasible to sit them in front of the eyepiece. So I am learning so I can take shots of objects I am observing to share with them.

--------------------
Meade 10" LX200R
Orion 80ED
Nagler 7T6, 9T6, 13T6, 17T4, 26T5
Canon XSi, TIS DMK 31AF03
Northwest Astro Photoblog


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George Methvin
sage


Reged: 01/30/06
Posts: 405
Loc: Central Texas
Re: Your Celestron SCT Pick new [Re: Kolenka]
      #2588203 - 08/18/08 11:07 AM

I like my C-8 on my LXD-75 goto mount. It is very easy to carry out side the optic are very good gives very sharp views. I bought the C-8 ota from a guy for $300.00 in like new shape. All around great scope shows me what I like to see.

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Hal Pollner

*****

Reged: 08/30/05
Posts: 6189
Loc: Southern California Desert
Re: Your Celestron SCT Pick new [Re: Brooklyn]
      #2588227 - 08/18/08 11:26 AM


HEY BROOKLYN:

The overwhelming popularity of visual observing is the VERY REASON that manufacturers produce telesopes in apertures exceeding 8 inches! Visit all the Astro forums and note the scopes at the star parties:

You'll find apertures of 10", 12", 14", 15", 16", 18", 20", and larger!

Even upgrading to a modest 10" will gain you 56 percent more light grasp and 25 percent better resolution, but a more satisfying upgrade would be from an 8" to a 12", where you would grab 2.25 times as much light with 50 percent better image resolution.

I recall the first time I took my new C8 to the great ANZA Star Party hosted by the 1200-member Orange County Astronomers.

I set up the scope and locked it on M42, and was proud of the image I got...UNTIL I began visiting the observing pads of those with 12" and 14" SCT's and 16" and larger Dobs, seeing what was withheld from me in M42's image because of the small aperture of my shiny new Orange C8!

I knew right then that I'll never again be satisfied with an 8" aperture, so I quickly went to OPT and bought a new 16" Meade StarFinder Dob, with four times the light grasp and double the resolution of the 8-incher!

From then on, I really began to enjoy star parties! (See the photo)

I've owned one 20-inch, one 17.5 inch, three 16-inch, one 15 inch, and one 12.5 inch, all Dobs.

My SCT's have been one C8, one Meade 2120 (10" SCT), two Meade 12" LX200's, one Meade 10" LX200, one Meade 8" LX90LNT,(a "grab & go"), and a Celestron 8" NexStar "grab & go".

The 8" "grab & go" scopes were very light and convenient, but since they didn't show me much in DSO's, I sold 'em quickly.

HAL

My advice: Suffer the weight, but go for the Aperture!

16" Meade LightBridge Dob
12.5" Discovery PDHQ Dob
12" Meade LX200ACF (on the way)
Coronado Solar Telescope
Four nice eyepieces

Edited by jrcrilly (08/19/08 09:09 AM)


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tishovlin
Carpal Tunnel


Reged: 11/11/03
Posts: 1811
Loc: Springfield, Pa
Re: Your Celestron SCT Pick new [Re: Kolenka]
      #2588368 - 08/18/08 12:35 PM

Quote:

Quote:


All pictures made by astrophotograhy are more or less very similar to one another, that is why this is an exception to the rule. A picture taken in 1999 by some random person, is going to look almost the same as the picture taken in 2008 by a different person, even if the two pictures were taking with completely different gear and telescopes. Sure the brightness or contrast might vary a bit, but the picture itself will be identical (except for the angle of course).





The same can be said for tourist photos of the Grand Canyon or other natural wonders that have been there for generations and likely will remain for a few more generations.

Part of the draw is that the photo becomes mine. I did it, with my gear, and my skill. The sense of ownership of the effort involved is what drives some people. In my case, it is hard to share my viewing with family who live far enough away it isn't feasible to sit them in front of the eyepiece. So I am learning so I can take shots of objects I am observing to share with them.




Besides, all you see from others is really great astrophotos. If you want to see lousy ones, you pretty much have to do them yourself.

--------------------
Tim S
C6-RGT
13.1" Truss Dob
Osypowski dual-axis Eq. Platform
15x70 Obies
NP-101
Gibraltar tripod/mount
Losmandy G-11 w/Gemini


I'm headin for Galt's Gulch


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Brooklyn
scholastic sledgehammer


Reged: 07/24/08
Posts: 870
Loc: Central New Jersey
Re: Your Celestron SCT Pick new [Re: Hal Pollner]
      #2589028 - 08/18/08 06:16 PM

Hal you are driving me insane!!

Must....resist....aperture....arghhhhhh.....

Hal your post made me just go through a flashback of my future! I foresaw myself a bit older, with 18 and 25" dobs!! I can see it...

Seems your entire collection of telescopes is looking similar to what mine might be in the future.

Don't forget though, im just still a noobie...my meade lx-90 has only been with me for 5ish years and im only 22. Also, the meade was my first scope so i had to learn everything i know based on just that.

My plan is to go strait to a 16" dob after im done using this meade 8" SCT.

By the way Hal, you mentioned that you have a problem seeing DSOs with your 8" how come? Are you speaking of trying to see them without nebula filters?

From my light polluted area in new jersey, trying to see DSOs without any filters on my 8" meade are near impossible. The andromeda galaxy looks like a white circular blob on an angle, while globular clusters show very very small details. The emission nebula barely show up, although i can definitely see the ring nebula and dumbell through my scope with no filters. Lots of messier objects are actually visible...the wild duck cluster looks quite nice without any filter at all.

Once i pop in an astronomik uhc, its a whole different story. I can make out the same details that are visible on scopes double my aperture, observing from a dark site.

I wonder what nebula filters look like when used through your 16" or 20" dobs

--------------------
Meade 8.25"(209.55mm) LX-90 EMC (SCT)

Albert Einstein =>
“Intellectual growth should commence at birth and cease only at death.”
“If you can't explain it simply, you don't understand it well enough.”


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Hal Pollner

*****

Reged: 08/30/05
Posts: 6189
Loc: Southern California Desert
Re: Your Celestron SCT Pick new [Re: Brooklyn]
      #2589085 - 08/18/08 06:39 PM


HEY BROOKLYN:

I never mentioned that I had any PROBLEM seeing DSO's with my 8-inchers!

No, with my skies, I saw them all, but after seeing the detail in them in large apertures that was not available to me because of the limitations of small apertures, it was then that I realized the EXTENT of those limitations!

I live in the High Desert region of Southern California, at 3000 ft altitude, in a town that is well removed from light pollution, and a short trip out to our many dark sky sites allows us to see DSO nebulosities without any filters.

I have Astronmik and Lumicon OIII filters, which I use just by holding them between my eye and the eyepiece, avoiding the nuisance of installing and removing them from the Ocular.

I don't have my 20" Obsession anymore...it was another one of those large-aperture scopes that I kept for just a short time.

I buy a new telescope nearly every year. This year I bought TWO new scopes...an 11" SCT and a 12" SCT. (I'm returning the 11")


Hey...you're 22 yrs old, and I'm 72! That's only 50 years difference...we're practically twins!

HAL

Edited by Hal Pollner (08/19/08 10:26 AM)


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sang33ta
professor emeritus


Reged: 07/08/08
Posts: 539
Loc: UK
Re: Your Celestron SCT Pick new [Re: Hal Pollner]
      #2589111 - 08/18/08 06:51 PM

C9.25 or C11 I don't think I could be bothered setting up anything heavier than that.

Quote:

Events like this are constantly going on. It's why I love the effort.





Yeah I don't think I'll be around for the next Hayles Comet (year 2061), wish I'd had a scope back in 1986 (was it that long ago?), but all I had was a camcorder

--------------------
Hioptic 152mm f12.5 Maksutov
Celestron Advanced CG5-GT Mount (Mr Noisy!)
Meade 4000 Super Plossl Set
Casio QV-2900UX
Got fed up of waiting for Meade ETX-150 so put this together for £500/$1000

Edited by sang33ta (08/18/08 07:01 PM)


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Brooklyn
scholastic sledgehammer


Reged: 07/24/08
Posts: 870
Loc: Central New Jersey
Re: Your Celestron SCT Pick new [Re: Hal Pollner]
      #2589258 - 08/18/08 07:58 PM

Wow hal...i really wish i could own as many telescopes as you do one day.

What do you do with your old telescopes? do you keep all of them that you ever had? or do you sell them on auction sites? Whats the biggest number of telescopes you hold in your possession at any one time?

I can imagine....having a 14" 12" 10" 8" 16" etc. You have more telescopes than many people have eyepieces. If i was in that situation i would probably only use two scopes...one reflector highest aperture, and one SCT highest aperture. What do you do with the rest of em?

Oh and i envy you for your location. Perhaps once i am done getting my education here in new jersey, i can make enough money to move out west, to more friendly skies. Or should i say darker.

--------------------
Meade 8.25"(209.55mm) LX-90 EMC (SCT)

Albert Einstein =>
“Intellectual growth should commence at birth and cease only at death.”
“If you can't explain it simply, you don't understand it well enough.”


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Hal Pollner

*****

Reged: 08/30/05
Posts: 6189
Loc: Southern California Desert
Re: Your Celestron SCT Pick new [Re: Brooklyn]
      #2590413 - 08/19/08 11:21 AM

HEY BROOKLYN:

In answer to your questions:

I sell my telescopes when I get tired of them, usually after a few months. (At a heavy loss!) HA HA!

The longest I've ever kept a telescope was three years, for ANTARES, my 12.5" Discovery solid-tube PDHQ, which I'm still using.

It's an easily manageable size, which is a very good reason to keep it.

I never keep more than three scopes on hand, because in my long experience with many different kinds and sizes of telescopes, I've found that I have really needed no more than two of them at any time:

A fast, large aperture Reflector for DSO work, and a 10" or larger GoTo SCT for planetary and Lunar studies.

I had a 6" Achromatic Refractor once but didn't like it and returned it to the dealer for a full refund after using it for a week.

Now I'm waitin' to drive down to OPT and pick up my new Meade 12" LX200ACF when it comes in!

Nice Skies...
HAL

--------------------





Edited by Hal Pollner (08/19/08 11:30 AM)


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Nazas_Observa
newbie


Reged: 09/15/08
Posts: 2
Loc: Torreon, Coahuila. Mexico
Re: Your Celestron SCT Pick new [Re: kfred]
      #2649011 - 09/18/08 03:24 AM

Hi

Im new in this place (sorry my english is bad, i live in Mexico). I love the C11 Orange, its the best for medium space in the car.

When travel i go with my "new" c90 (1978). A friend gift me in my birthday, the old owner never use this scope !! 30 years an i test for first time 2 months ago. I realy happy for this.

But, if you ask me, my favorite is the LX200 16" in the observatory, with good align the image is amazing.

--------------------
Eduardo Hernandez Carrillo

Coordinador General Planetarium Torreon
Asociacionm Mexicana de Planetarios
Observatorio del Nazas


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scopethis
sage


Reged: 05/30/08
Posts: 239
Loc: Kingman, Ks
Re: Your Celestron SCT Pick new [Re: Nazas_Observa]
      #2649231 - 09/18/08 08:43 AM

Hal--what eyepieces do you use between the 16" DOB and the 12" SCT? Which are your favorites?

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AlexN
sage


Reged: 08/09/08
Posts: 358
Re: Your Celestron SCT Pick new [Re: scopethis]
      #2649373 - 09/18/08 10:31 AM

I would and did buy the C11 XLT, Simply because its the biggest I can easily set up on my own, its relatively affordable (compared to the C14) requires less of a mount...

Had I not owned an 8" newtonian before the C11, I'd have probably gone for the C9.25 as the price is $1000 or so AUD cheaper than the C11. and only 1.75" smaller.. However having had an 8" newtonian, I was not about to spend AUD$2700 for an extra 1.25" of aperture... I wanted a big step up in both aperture and optical quality, I wanted it to be easy for me to set up on my own, portable, and most of all I didnt want to have to spend another $4800AUD getting a G11 with Argo-Navis or Gemini to run it...

C11 = Power, performance, awesome!

**Hugs C11!

--------------------
Celestron C11 11" f/10 SCT With MoonLite Motorized Crayford :: EQ6 Pro + EQMOD :: William Optics M102ED :: William Optics Megrez 90 FD :: Orion ST80 Guidescope :: Thousand Oaks Dew Heater :: 2" 13nm Ha Filter :: DBK31.AU :: QHY8 :: 5x Powermate :: 2.5x Powermate :: Canon 350D ::


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