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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: HeyJP]
      #5802716 - 04/16/13 01:37 PM

Thanks Jim, yes he does, I'm just trying to ensure I end up with the one I genuinely want and think has value to me. At the moment it's the edge 1100 but only if I can get it at the price I'm trying to get it at.

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A. Viegas
Pooh-Bah
*****

Reged: 03/05/12

Loc: New York City/ CT
Re: Which CPC? new [Re: HeyJP]
      #5803623 - 04/16/13 10:15 PM

I actually have both the cpc1100 and older celestar C8, just like Jim. I have set my cpc1100 outside with a telegizmo cover. I use it as my main imaging scope, my C8 I use as my travel scope.

Like Jim I suggest you try and buy used. You can often get very good deals and save enough for a second scope,,this way you can have a primary larger and less moveable setup and then have a smaller and more mobile scope/mount combination. For the price of a brand new CPC1100'standard or edge you can get two setups used...

Just my 2c

Al


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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: A. Viegas]
      #5804081 - 04/17/13 08:14 AM

thanks, I normally buy used the only exception to that rule has been my ETX90 EC many years ago. I quickly found buying used saves me a good 3rd.

Alas, I have yet to see a CPC Deluxe come up for sale. I missed an "as new" standard CPC9.25 a few motnhs ago because I had decided on an Edge 8HD and Nextar mount as my grab and go. The new Nextar SE mounts are awful though compared to my 5i (noisier and slower) so I've had to rethink.

Weirdly, accepting a CPC actually means its going to be even slower and noisier but at least it is stable!

So yes, if I can find a used Deluxe I'll grab it or a larger standard CPC at the right price.


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Starhawk
Space Ranger
*****

Reged: 09/16/08

Loc: Tucson, Arizona
Re: Which CPC? new [Re: Seiko4169]
      #5806602 - 04/18/13 12:54 PM

The CPC should be quieter. They're essentially silent when tracking and pretty quiet when maneuvering. The older NexStar GPS scopes are extremely quiet overall, though they are also slower.

-Rich


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gaz-in
scholastic sledgehammer
*****

Reged: 12/17/07

Re: Which CPC? new [Re: Starhawk]
      #5806773 - 04/18/13 01:45 PM

If you are buying used, and Edge is not critical to you, I encourage you to consider the Nexstar GPS series.

I have recently owned a CPC 800 and a Nexstar 8 GPS. The optics in both were comparible. After that the Nexstar GPS was far superior. Better tracking, much quieter, no cord wrap to fool with, etc....

I would really love to figure a way to mount my Edge on my NExstar 8 GPS mount...

They can be had pretty cheap too. I got my Nexstar 8 GPS with JMI case for $875.

While sold, here is an exammple:

Nexstar 8 GPS on CN


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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: gaz-in]
      #5806834 - 04/18/13 02:31 PM

Yes, thanks, I actually like the nexstar 8 GPS and can quite believe they're much quieter. It's such a shame Celestron switched to awfully noisy motors or slightly misaligned components creating a racket when slewing. Wouldn't mind they even had to cut the speed!

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katie
sage


Reged: 11/06/11

Loc: Southern Maryland
Re: Which CPC? new [Re: Seiko4169]
      #5810323 - 04/20/13 08:48 AM

I opted for the less expensive CPC1100 (non-Edge) because I knew most of my imaging would be with the Hyperstar. There is no optical advantage of the Edge over a plain CPC1100 when in Hyperstar mode.

As for cooling and temp equalization, I purchased an SCT cooler. Works just fine.

For those good-seeing windows where I want to image in non-hyperstar mode, I purchased an SCT Corrector from Starazonia ($349). It works great! Flat field - Edge like images from the CPC1100.

The CPC1100 is a beast. Mine stays on a tripod with retractable wheels. If I had to mount it every time I used it....well, I would/could not use it.


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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: katie]
      #5810534 - 04/20/13 10:29 AM

thanks for the response Katie, and yes the regular CPC1100 looks like a fantastic scope for the price. I'm just struggling to pull the trigger on it because lots of people suggested the Edge. Deep down I know I want the Edge version but its a little over my budget. If I can find a good deal then I'll get the Edge version but if I cant then I might fall back to the standard CPC. Weirdly, we ALL know that for visual the standard CPC1100 will be stunning but for some reason the Edge marketing team have us all spooked about the edge of field flatness!

Oh and alas, I'll have to set mine up each time although thankfully not so far. 15 feet or so?



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HeyJP
professor emeritus


Reged: 12/11/10

Loc: Boulder, CO
Re: Which CPC? new [Re: Seiko4169]
      #5810909 - 04/20/13 01:28 PM

My attitude about field flatness for visual use is that on stellar and small width objects (looking at star color, double-stars, planets, small globulars, small galaxies) your concentration is on the center of the view and only use the periphery as context. Slight curvature on the edges doesn't matter.

On extended diffuse objects (nebula, galaxies), where you let your eye roam around the field of view to enjoy the details across the object, curvature is more complexly rendered and not even noticeable. Again, slight curvature doesn't matter.

Maybe, just maybe, on a large globular might there be room for curvature affecting the stars on the periphery... but once again, your concentration is more on the center where it is undetectable. Slight curvature doesn't matter.

For visual use, in my opinion, it is more of an intellectual argument of specs than it is a determent from pleasure. Slight curvature doesn't matter.

Also, the edge scopes are too new and too few available for there to be many used deals. They would get close to list price (plus your shipping) on any market.

Caveat: I have a Celestar 8 and CPC-1100. I have looked through an Edge only 8 one time... it was a great view. But then again, I was getting great views in my scope that night too. With different eyepieces etc, nothing jumped out at me in the Edge scope and difficult to compare!! And I paid less for my ebay 1100 than he paid for his new 800 Edge. ;-)

My 1.5 cents. Oh, did I mention that slight curvature doesn't matter?

Jim in Boulder

Edited by HeyJP (04/20/13 01:30 PM)


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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: HeyJP]
      #5811013 - 04/20/13 02:19 PM

thanks Jim, you know I know you're right too. I think its also a bit of an ego thing too! It shouldn't be but that NEWER model is irking me?! I can get the Deluxe for less than 4K (my limit) but only from one source. Only problem with the source, it would be an import and I dread the thought of a problem rearing its head needing me to ship it back to the retailer!

They never make it easy do they? Even if I can grab my so called bargain at <4K for the Deluxe I still think the 2.5K standard CPC is a fantastic deal!!

Decisions, decisions, decisions!


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katie
sage


Reged: 11/06/11

Loc: Southern Maryland
Re: Which CPC? new [Re: Seiko4169]
      #5811118 - 04/20/13 02:56 PM

Quote:

... Only problem with the source, it would be an import and I dread the thought of a problem rearing its head needing me to ship it back to the retailer!...




To the above, allow me to add another decision point (as if you did not have enough already).

When I went looking, specifically for the CPC1100, I did the normal on-line shopping and comparison. But, when it came time to actually purchase I went to the nearest Celestron dealer and cut a deal...not that far north of the on-line prices.

I picked the local purchase option for three reasons.
1) The folks are very nice and provide free support(already had that one come in handy a week after purchase - replaced the cover at no charge).
2) No ship back to Celestron for repair.
3) It is good to support your local dealer (IMHO).

This beast arrives in two boxes. The OTA and fork are in a box 36x19x30 inches. The tripod is boxed at 36x19x16 inches.

I can not imagine man(girl)-handling a 70lb box to ship to a dealer or Celestron.


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MikeBOKC
Post Laureate
*****

Reged: 05/10/10

Loc: Oklahoma City, OK
Re: Which CPC? new [Re: katie]
      #5811406 - 04/20/13 05:10 PM

Have we mentioned that slight curvature doesn't matter?

I have viewed the same objects, often using the same eyepieces, on the same night through my standard CPC1100 and our club C14 Edge and the only visual differences I have seen were attributable to the extra aperture, not the comparative design. I am convinced that what goes on outside the scope -- seeing, transparency, light pollution -- has a much greater impact on visual observing than the optical design, aperture and good collimation being equal.

Best bet is that when Celestron engineers sat down to design the Edge they had imagers in mind far more than visual observers.


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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: MikeBOKC]
      #5811465 - 04/20/13 06:01 PM

Quote:

Have we mentioned that slight curvature doesn't matter?

I have viewed the same objects, often using the same eyepieces, on the same night through my standard CPC1100 and our club C14 Edge and the only visual differences I have seen were attributable to the extra aperture, not the comparative design. I am convinced that what goes on outside the scope -- seeing, transparency, light pollution -- has a much greater impact on visual observing than the optical design, aperture and good collimation being equal.

Best bet is that when Celestron engineers sat down to design the Edge they had imagers in mind far more than visual observers.




It has been but there are clearly 2 camps even on cloudy nights. I thought that I'd be laughed at for even thinking of getting the Edge for mostly visual but a lot of folks suggest to get the Edge as it is much better when wide angle eyepieces are thrown in the mix?


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HeyJP
professor emeritus


Reged: 12/11/10

Loc: Boulder, CO
Re: Which CPC? new [Re: MikeBOKC]
      #5811470 - 04/20/13 06:06 PM

Someone mentioned "slight curvature doesn't matter" once or twice earlier in the thread. I think. ;-)

I live up against the Rocky Mountains in Boulder, CO. Which blesses us with gorgeous views, lots of blue sky days, no humidity, clear skies... and terrible seeing. Spectacular clear, dark nights often harbor all kinds of turbulent air that you can't see... until you peel off the cover of your scope.

For the first few months I had my CPC 1100, while I was excited about the deep sky objects I could see... it was all I could do to imagine a single cloud stripe on Jupiter.

Then... I drove out to Utah. Holy Mackeral! I thought I had a new telescope. I could see martians that had landed on Jupiter. I could see the Apollo 11 flag standing on the moon. Well, not quite.

But the difference was amazing. Even the Edge optics can't do anything about poor seeing conditions or loads of humidity and bad transparency.

Good point, Mike!

Jim


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Seiko4169
sage


Reged: 07/04/09

Re: Which CPC? new [Re: HeyJP]
      #5811478 - 04/20/13 06:11 PM

Thanks Jim, yes, weirdly, that's another reason I'm pausing for thought. Coming from using C8's I certainly hope the C11 will give me a notable increase

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novalad
member


Reged: 04/15/07

Loc: Uxbridge,Ontario--Canada
Re: Which CPC? new [Re: Seiko4169]
      #5815950 - 04/22/13 06:08 PM

Good luck with whatever CPC model you go with!
I was looking to get a Nexstar 8SE and had posted that in the Nexstar forum but took your suggestion and have decided to go with a CPC Edge 800. Having had the 9.25 non Edge version yrs ago I know the mount is pretty solid but the 9.25 could be a pain sometimes as far as being portable.
I think the CPC Edge 800 will be good for me as I'm looking for portability and a stable mount and at only 43 lbs for the OTA and mount it will be easier to move around:)
Celestron claims they have made improvements to the mount and drive section..anyone experience improvements there?
I know my old CPC 9.25 was pretty good..even on 1 star allign it tracked quite well and was fairly quiet.
Just going to use the beast for purely visual!Should work well with a nice set of Brandon eyepieces I got last yr!
----------------------------------------------

--------------------------------------
Skywatcher ED Pro 120
Astrotech 66ED
Set of Brandon Eyepieces
Meade 2X 140 APO Barlow
Antares Variable Polarizer 1.25"


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Fernando134
member


Reged: 02/02/13

Loc: Brasil
Re: Which CPC? new [Re: novalad]
      #5816167 - 04/22/13 07:21 PM

Many of you wrote about how heavy the CPC1100 is. I am quite sure it is. What about having a CPC1100 in something like a scopebuggy? I am planning replacing my CPC800 with the 1100 (for observing). I will have to push the CPC1100 on the buggy for about 20 feet. Can anyone comment on that?

Fernando

Fernando


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A. Viegas
Pooh-Bah
*****

Reged: 03/05/12

Loc: New York City/ CT
Re: Which CPC? new [Re: Fernando134]
      #5816191 - 04/22/13 07:31 PM

Hi Fernando-

It all depends on the surface you are wheeling the CPC1100 across. I used to keep my CPC1100 in the garage and all i needed was to wheel it out about 10ft on the driveway. I was on concrete the whole way... as such i found i could do very well with just three little piano casters which cost like $10 each. If you have to travel on uneven ground or across grass then you will need the scopebuggy or the JMI wheelybar with large wheel upgrade and in either case you are looking at $300+ excluding of course shipping.

here is what i used to use prior to just leaving my CPC1100 fully mounted and assembled outdoors:

http://www.amazon.com/Grip-On-Tools-3-Wheel-Movers-Dolly/dp/B003UFTVEI/ref=pd...

Good luck
Al


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herrointment
Post Laureate
*****

Reged: 03/12/11

Loc: North of Hwy. 64
Re: Which CPC? new [Re: novalad]
      #5816233 - 04/22/13 07:55 PM

Novalad, no problems with tracking or gotos. It almost feels like cheating. Smooth and accurate. Much to like in that department.

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Fernando134
member


Reged: 02/02/13

Loc: Brasil
Re: Which CPC? new [Re: A. Viegas]
      #5816875 - 04/23/13 06:35 AM

Hi Al,

I will have to wheel for about 20ft on concrete. Very creative the three little piano casters (one for each tripod leg, right?). You kept the CPC on the casters all the time, even when observing, I am guessing.

Thanks, Fernando


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