Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Equipment Discussions >> Mounts

Pages: 1
galael
member


Reged: 12/16/12

Loc: Dallas, TX
AP Mach1GTO Mount paired with an EdgeHD 11"
      #5711164 - 03/03/13 06:24 PM

I have the chance to pick up an AP Mach1GTO mount which I'm definitely going to do. Now I'm looking for a worthy scope to put atop this magnificent mount, one that gives me a combination of great optical viewing along with DSO imaging capabilities.

I've not seen any comments from people who have paired the Mach1GTO with an EdgeHD 11 although it seems like a great combination to me. The mount is conservatively rated at 45 lbs and the Edge HD 11 weighs in at 28 lbs leaving room for camera, guide scope and accessories. It seems like I'm able to have it all: DSO imaging with HyperStar, great optical viewing, planetary imaging at the longer focal length and even relative portability. The only drawback I see is the limited imaging footprint in front of the Hyperstar assembly but I could also use the now available focal reducer. It seems like a very versatile setup but not having seen a single comment mentioning this mount and scope combo makes a me a little wary.

Am I missing something?


Post Extras: Print Post   Remind Me!   Notify Moderator  
JMW
Pooh-Bah


Reged: 02/11/07

Loc: Nevada
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: galael]
      #5711256 - 03/03/13 07:07 PM

I have the AP900GTO and the C11 EdgeHD. I mostly use an STF-8300 pro+ package which includes off axis guider and filter wheel. I am sure that you could get good results with the Mach1GTO with an off axis guider. I have done imaging at the native 2800mm and with the price .7 focal reducer (1980mm). I hope to purchase a hyper lens this summer to use with my Canon 6d for wide field at f2. I know one other imager locally who is imaging with the C8 EdgeHD on the Mach1GTO and he gets great results.

Post Extras: Print Post   Remind Me!   Notify Moderator  
andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: JMW]
      #5711320 - 03/03/13 07:46 PM

I have a Mach1 and I use it with the Orion 10"RC. I am not familiar with the Celestron 11" But i guess it would be similar in size to the 10"RC.
My OTA fully equipped for AP weighs in at ~38lb.
The Mach1 with this setup performs very well to the point that I stopped using my less portable NJP.
I hope this info is helpful.

Andy


Post Extras: Print Post   Remind Me!   Notify Moderator  
orlyandico
Post Laureate
*****

Reged: 08/10/09

Loc: Singapore
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: andysea]
      #5711553 - 03/03/13 09:47 PM

I believe the Mach1 will work with the EDGE11.

I have a C9.25 which only weighs 5lb less than the EDGE 9.25.

At native focal length, and not even using an OAG, I get 100% keepers at 10 minutes. 20 minutes, not 100%.

Last night I tried using the C9.25 with a 2X barlow, giving a focal length of... 5000mm.

At that FL, with my guide scope, and with 6 minute subs, I only had 30% keeper rate. Definitely 5000mm is a bit too much for the Mach1.. maybe an OAG would give better results, but given that it still produced usable subs with a separate guide scope at that FL, I would not hesitate to put a C11 on it.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Wembley2000
sage
*****

Reged: 01/07/12

Loc: SW Ohio
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: orlyandico]
      #5711584 - 03/03/13 09:58 PM

I am imaging with a 10" meade sct right now, reduced with the ccd67 probably working at around f7. I have 46.5lbs of counter weights on the mach 1, guided with a st80 and a qhy5l-ii, I am only shooting 10min subs tonight and my guiding rms in phd is .23 at a 1.93 arc sec image scale with the guider. I will see how many keepers I will have tomorrow though, hopefully all of them. Once I get an oag I am planning on longer subs, 20min or more.

I guess to answer your question, mine can handle my 10" without breaking a sweat.

Brian

Edited by Wembley2000 (03/03/13 10:01 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
galael
member


Reged: 12/16/12

Loc: Dallas, TX
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: Wembley2000]
      #5711742 - 03/03/13 11:33 PM

Wow, some very helpful responses and loved the 5000mm attempt. I'm definitely doing the Edge 11 with the Mach1 mount now and look forward to posting my first light photos here.

Many thanks y'all.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Footbag
Post Laureate
*****

Reged: 04/13/09

Loc: Scranton, PA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: Wembley2000]
      #5711744 - 03/03/13 11:35 PM

I asked Howard from AP this exact question at NEAF and he said the Mach 1 could handle the 11" Edge no problem. He implied it could handle a lot more then it's rated for.

Post Extras: Print Post   Remind Me!   Notify Moderator  
orlyandico
Post Laureate
*****

Reged: 08/10/09

Loc: Singapore
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: Footbag]
      #5711793 - 03/04/13 12:20 AM

i am using 3x 9lb weights to carry my C9, guide scope, camera, etc. on the 10" thin shaft.

if you get a mach1 with the thick shaft, you will need less weights, as the shaft itself is about 10 lb i think.


Post Extras: Print Post   Remind Me!   Notify Moderator  
andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: Wembley2000]
      #5711897 - 03/04/13 02:56 AM

Just to corroborate the previous posts. I just finished testing the 10"RC with the CCDT67. With OAG i was getting about .25"rms round stars at 10min subs.

Orly I don't think any mount would allow you to shoot at 5000mm without an OAG. My guess is that differential flexure would be a nightmare.


Post Extras: Print Post   Remind Me!   Notify Moderator  
orlyandico
Post Laureate
*****

Reged: 08/10/09

Loc: Singapore
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: andysea]
      #5712003 - 03/04/13 07:09 AM

well I did have a 30% keeper rate

Post Extras: Print Post   Remind Me!   Notify Moderator  
WadeH237
Pooh-Bah


Reged: 02/24/07

Loc: Snohomish, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: orlyandico]
      #5712805 - 03/04/13 04:04 PM

I really suspect that the Mach1 is underrated. Some part of me wonders if they don't want it to be too close to the 900. I have heard anecdotal stories of people running it with up 100 lb for visual.

Post Extras: Print Post   Remind Me!   Notify Moderator  
andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: WadeH237]
      #5713005 - 03/04/13 05:41 PM

That's good to know Wade!

Orly, 30% keeper rate is quite amazing actually


Post Extras: Print Post   Remind Me!   Notify Moderator  
korborh
professor emeritus
*****

Reged: 01/29/11

Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: andysea]
      #5713020 - 03/04/13 05:49 PM

If OAG had been used, the keeper rate may have been much higher....The mount cannot help with differential flexure is involved. So you cannot say 5000mm was really too much for the Mach1.

Post Extras: Print Post   Remind Me!   Notify Moderator  
andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: korborh]
      #5713575 - 03/04/13 11:10 PM

Thank you for articulating in a more eloquent manner. That is exactly the point that I was trying to make:)

Post Extras: Print Post   Remind Me!   Notify Moderator  
orlyandico
Post Laureate
*****

Reged: 08/10/09

Loc: Singapore
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: andysea]
      #5713666 - 03/05/13 12:09 AM

The Mach1's gears are the same size as those on the NJP.

The NJP is 70lb rated if I recall correctly.. but with Taks you have to derate (a little bit). Note that Jerry Lodriguss considers the EM200 (40lb capacity) overloaded with the C11. So the NJP should be good for maybe 60lb imaging.

If we follow the reasoning that "same gear size equals same payload" then the Mach1 should be good for 60lb as well... if the OTA is short and you have a monster pier.

I wouldn't want to do that though... IME when you push a mount to its limits it becomes less consistent. With c.a. 35lb of payload I don't have to care about mundane things like balance...


Post Extras: Print Post   Remind Me!   Notify Moderator  
andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: orlyandico]
      #5713716 - 03/05/13 12:49 AM

That's possible Orly. All I know is that even with a mount rated at 60 or 70lb....I am definitely not going to carry a 60~70lb. imaging rig to a dark site:)

Post Extras: Print Post   Remind Me!   Notify Moderator  
Wembley2000
sage
*****

Reged: 01/07/12

Loc: SW Ohio
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: andysea]
      #5713953 - 03/05/13 07:45 AM

I ended up doing 15min subs the other night with the Mach1, 10" Meade sct at 1965mm focal length, and 46.5lbs of counterweights. 25 out of 25 keepers, there was some flexure and I need to recolimate, as I had some flaring to one side. I was very happy with the results, now I just need to get my new celestron oag which I have on preorder.

Brian


Post Extras: Print Post   Remind Me!   Notify Moderator  
CounterWeight
Postmaster
*****

Reged: 10/05/08

Loc: Palo alto, CA.
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: Wembley2000]
      #5714441 - 03/05/13 01:06 PM Attachment (24 downloads)

When folks ask what the Mach1 can handle I like to post this image... 100% keepers narrowband long exposure -sometimes just 10 minute but mostly 15 and 20... TEC APO160ED with Orion ED80T -CF piggyback, SBIG 8300M/FW8. This setup has a much longer moment and works flawlessly.

Not just bragging or speculating - here is some proof.


Post Extras: Print Post   Remind Me!   Notify Moderator  
andysea
Pooh-Bah
*****

Reged: 09/03/10

Loc: Seattle, WA
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: Wembley2000]
      #5714797 - 03/05/13 04:19 PM

Lovely shot and great setup Jim!
Thanks for sharing!

Andy


Post Extras: Print Post   Remind Me!   Notify Moderator  
RAKing
Postmaster
*****

Reged: 12/28/07

Loc: West of the D.C. Nebula
Re: AP Mach1GTO Mount paired with an EdgeHD 11" new [Re: galael]
      #5714952 - 03/05/13 05:35 PM

I used a C-11A on my Mach 1 for a long time and it's a wonderful combination. I had to let mine go because of back issues, but those have now been fixed with surgery.

I talked to Roland at NEAF a few years ago and he told me the Mach 1 could easily handle a C-14 for visual observing. I have seen them loaded up with 60 pounds worth of refractors and there were no issues at all. My Mach 1 has performed flawlessy for almost four years and it can easily handle any scope I wish to use.

Cheers,

Ron


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Extra information
23 registered and 35 anonymous users are browsing this forum.

Moderator:  Dave M, richard7, bilgebay, iceblaze 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 1262

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics