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Equipment Discussions >> Mounts

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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Heaviest Loads on HEQ5Pro
      #5600148 - 01/01/13 07:02 PM

I'd like to have an informal survey on the max loads, visually and photographically, people have successfully used on the HEQ5Pro mounts. Please include any comments about the experience, both pro and con, and caviets found in doing so, such as max exposure times vs: focal length (both guided and unguided). Thanks.
John


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Ricky
Carpal Tunnel
*****

Reged: 09/09/03

Loc: Nor Cal
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5600158 - 01/01/13 07:10 PM

Hi John,
I routinely take planetary images with my MN61 on my Sirius HEQ5. I also use an extended cw bar from Criterion Machining so that I can balance everything with an 11lb cw. So total weight is around 32lbs +.


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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: Ricky]
      #5600166 - 01/01/13 07:15 PM

Thanks, Ricky, that's a nice setup. What camera are you useing?
John


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Ricky
Carpal Tunnel
*****

Reged: 09/09/03

Loc: Nor Cal
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5600184 - 01/01/13 07:23 PM

Hi John,
Ive been using my old Phillips TouCam Pro II usually with either a TV 5x powermate or UO 2.8x barlow...depending upon seeing.


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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: Ricky]
      #5600202 - 01/01/13 07:37 PM

Do you lose many subs do to tracking issues, or all pretty good? That's some serious focal length.
John


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Ricky
Carpal Tunnel
*****

Reged: 09/09/03

Loc: Nor Cal
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5601250 - 01/02/13 01:19 PM

Hi John,
For planetary imaging my HEQ5 handles the load fine...great tracking and no problems imaging at 5-10fps, which btw is the highest frame rate my cam will go. I think the key is good balancing.


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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: Ricky]
      #5601925 - 01/02/13 08:40 PM

Thanks, Ricky.

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Tandum
sage


Reged: 03/01/10

Loc: Brisbane, Australia
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5602734 - 01/03/13 10:56 AM

http://starshed.net/gallery/displayimage.php?album=5&pid=20#top_display_m...

That should be an image of an heq5 with 17.5kgs on top of it.

And this should be an image from that kit via a 450D.
http://starshed.net/gallery/displayimage.php?album=6&pid=2#top_display_media

Can be done


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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: Tandum]
      #5602757 - 01/03/13 11:14 AM

That's quite a load on the mount, Tandum, but your image looks terrific.
John


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neptun2
scholastic sledgehammer


Reged: 03/04/07

Loc: Bulgaria
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5604602 - 01/04/13 11:32 AM

I personally have loaded my heq5 pro with around 12 kg. The information that i have seen is that according to the specifications it can handle around 14 kg for visual maximum. My setup included 8" f/5 netwonian with 80mm f/5 refractor on top of it as guide scope. Imaging was done with nikon d90 dslr camera and guiding with meade dsi 2 pro. I have some good 5 minute exposures with this setup but definitely not all and the system was quite sensitive to wind. I also needed 3x5kg counterweights to balance all this. Later i removed the guide scope and used off-axis guiding instead which reduced the weight with around 2 kg and added more precision to the guiding itself. With this setup 5 minute exposures were much easier. In general i do not recommend to go over 10kg for photography on this mount.

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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: neptun2]
      #5604878 - 01/04/13 02:05 PM

Thanks for the comments, Neptun2. I can see where an 8" Newt would have issues in the wind with your load. I would probably max out with a 6" astrograph or an 8" SCT. I do have a 10" dob (XT10i) for deep space observing to take care of my aperture fever. :-)
John


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neptun2
scholastic sledgehammer


Reged: 03/04/07

Loc: Bulgaria
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5604928 - 01/04/13 02:34 PM

If you want a scope for astrophotography on this mount 8" RC or 5" APO refractor are also good options. I personally have ordered skywatcher evostar 120mm APO to replace my 8" newtonian on my heq5 pro. It weighs only 5.5 kg and with the other accessories it will become around 7 kg. Some of the 5" APOs on the marker are heavier but usually not more than 7 kg. It is also a good option. Another option is also 8" carbon tube newtonian. It will definitely be lighter than my skywatcher 8" metal tube newtonian.

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akira
member


Reged: 08/26/08

Re: Heaviest Loads on HEQ5Pro new [Re: neptun2]
      #5607707 - 01/06/13 02:27 AM

http://kostasastronmy.zxq.net/Equipment-en.html at the bottom of the page you can see various photos of my setup with the rc 8'' being the latest. the times i can reach with an oag are 20 mins but only after having my mount properly serviced and balanced. here are some of my photos http://www.astrobin.com/users/kookoo_gr/

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neptun2
scholastic sledgehammer


Reged: 03/04/07

Loc: Bulgaria
Re: Heaviest Loads on HEQ5Pro new [Re: akira]
      #5607778 - 01/06/13 05:11 AM

Hello Kostas. what do you mean by "properly serviced" mount? did you make any modifications of your HEQ-5 and if so what exactly?

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akira
member


Reged: 08/26/08

Re: Heaviest Loads on HEQ5Pro new [Re: neptun2]
      #5607868 - 01/06/13 08:03 AM

i stripped down the mount and regreased it, also i meshed the gears as best as possible, also at the nut that holds the Dec axis beneath the vixen puck i used some locktight since i noticed that it gets loose and ads flexure to the mount,i placed an adm dual saddle to eliminate flexure from the standard vixen puck and i soldered a permanent power supply cable so that i won't have any surprises from bad power supply connections (http://www.astrovox.gr/forum/viewtopic.php?t=15921 my mount is at the last photos of the topic).

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groz
Carpal Tunnel
*****

Reged: 03/14/07

Loc: Campbell River, BC
Re: Heaviest Loads on HEQ5Pro new [Re: akira]
      #5608106 - 01/06/13 11:16 AM

Our HEQ5-Pro was left stock, out of the box, with no mods or anything special done to it. The load on it consisted of a Williams 110, with a starlight xpress H9 for camera, filter wheel and a full load of filters, lrgb and narrow band. To guide it, we used the Kwiq setup, qhy5 in a 9x50. Prior to getting the sxv-h9, we used a Nikon D50.

With the dslr, 5 minute subs were routine. With the ccd when doing narrow band, 15 minutes was routine. Throw away exposures were rare, normally due to wind, or folks walking on the wooden deck. As for visual use, I have no clue, I dont think we have ever put an eyepiece in a telescope on that mount.

My overall comments on the mount, which I do repeat for folks that are looking at buying starter equipment. The HEQ5-Pro is the best bang for the buck in mounts. We used it side by side with the EQ6 for years in our 'his and hers' mobile astro setup. We had the C8 on the EQ6, but I wouldn't hesitate to put it on the HEQ5 either, and if we were starting over with those telescopes today, we would have two HEQ5-Pro. It is MUCH easier to set up than the EQ6.

We used the HEQ5 + EQ6 pair for years, they have been to star parties ranging from northern california, out to saskatchewan. They spent months at a time set up on our back deck, under the 365 cover system. The HEQ5 has never given us a problem. We would continue to use it, except for one detail, 'her' telescope got upgraded this winter, and the TOA-130 is to big for the mount, so it went on the EQ6. If I had stuck with the C8, it would go on the HEQ5, but I went to a 12 inch RC, and that came with a tak njp. So, the HEQ5 is now in our surplus astronomy bits pile, not because we had problems with it, but we outgrew it.


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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: groz]
      #5608125 - 01/06/13 11:24 AM

These are great bits of info to have, folks, and much thanks to all of you. It looks like my move will be to the HEQ5Pro after I sell my LXD55 and some other stuff to finance it (anyone want a terrific 1954 American Flyer train set? :-) ).

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guyroch
Vendor (BackyardEOS)
*****

Reged: 01/22/08

Loc: Under the clouds!
Re: Heaviest Loads on HEQ5Pro new [Re: akira]
      #5608502 - 01/06/13 02:15 PM

Quote:

i stripped down the mount and regreased it, also i meshed the gears as best as possible, also at the nut that holds the Dec axis beneath the vixen puck i used some locktight since i noticed that it gets loose and ads flexure to the mount,i placed an adm dual saddle to eliminate flexure from the standard vixen puck and i soldered a permanent power supply cable so that i won't have any surprises from bad power supply connections (http://www.astrovox.gr/forum/viewtopic.php?t=15921 my mount is at the last photos of the topic).




Pretty cool mod you got there

Guylain


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Cow Jazz
professor emeritus


Reged: 11/24/03

Loc: Toronto, Ontario
Re: Heaviest Loads on HEQ5Pro new [Re: guyroch]
      #5608945 - 01/06/13 05:49 PM

Can anyone suggest any particularly good websites and/or webgroups for the HEQ5Pro? This includes for visual or AP use, modifications, etc.
John


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neptun2
scholastic sledgehammer


Reged: 03/04/07

Loc: Bulgaria
Re: Heaviest Loads on HEQ5Pro new [Re: Cow Jazz]
      #5609057 - 01/06/13 07:10 PM

Here is a link showing how to disassemble, regrease and reassemble such mount. I personally have not done it. Link:

http://www.astro-baby.com/heq5-rebuild/heq5-m1.htm

Edit: I have this mount for more than 4 years now and did not make any modifications on it. It is stock and always worked correctly even at -13 degrees celsius in the winter.

Edited by neptun2 (01/06/13 07:12 PM)


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