Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Matching a Telescope/Camera setup with the Best Mount and Auto Guider

astrophotography
  • Please log in to reply
7 replies to this topic

#1 AndyK997

AndyK997

    Lift Off

  • -----
  • topic starter
  • Posts: 7
  • Joined: 17 Aug 2019

Posted 20 October 2019 - 09:27 PM

Given the following setup and available mounts:

 

A.  What mount* would you choose?;

B.  What auto guider would you choose?

 

Scope: Sky-Watcher Evostar 80: https://www.skywatch...ts/evostar-80ed

 

Camera: https://www.highpoin...ra-color-633001 {includes an auto guider port)

 

Mounts available to us:

 

(1)  Sky-Watcher EQM-25 Mount: https://www.skywatch...ts/eqm-35-mount

 

(2)  Celestron CGEM II EQ Mount: https://www.celestro...gem-ii-eq-mount

 

Thanks.

 

I know that on calm nights, (2) mount is overkill.  Please think creatively.  


Edited by AndyK997, 21 October 2019 - 12:05 PM.


#2 Hesiod

Hesiod

    Gemini

  • *****
  • Posts: 3273
  • Joined: 13 Jan 2013

Posted 21 October 2019 - 08:45 AM

Avoid the extremes...if do not plan to upgrade rather soon to a larger telescope, it may even become a disadvantage to pick a mount which is too oversized (if you have to lug out its weight every time, or if plan to shot from dark sites far from home).
If own already both, my suggestion is to start with the eq3.
If have to purchase new however, I would skip both.
BTW, if want a cooled camera, a mono sensor would be a much better purchase
  • MikeMiller likes this

#3 MikeMiller

MikeMiller

    Viking 1

  • -----
  • Posts: 714
  • Joined: 22 Jul 2014
  • Loc: Pittsburgh, PA, USA

Posted 21 October 2019 - 10:37 AM

Is there a reason for this specific comparison of two mounts that are not even close to the same weight class? Or is this a question of "these are the mounts I currently own, what other hardware should I use?"

 

Both would work fine for an 80mm ED scope. Though the CGEM has a higher weight capacity and would probably work better. 

 

If you are looking to buy brand new, I would pass on both.

 

Also, it looks like you pasted in the text of your post from a word processor. None of your links work.


  • psandelle likes this

#4 AndyK997

AndyK997

    Lift Off

  • -----
  • topic starter
  • Posts: 7
  • Joined: 17 Aug 2019

Posted 21 October 2019 - 11:39 AM

MikeMiller,

 

What mount would you recommend?



#5 AndyK997

AndyK997

    Lift Off

  • -----
  • topic starter
  • Posts: 7
  • Joined: 17 Aug 2019

Posted 21 October 2019 - 12:07 PM

Hesiod,

 

This would be a new purchase.

 

What would you buy?

 

PS Mike: I fixed the hyperlinks.  Thanks for the feedback.  


  • MikeMiller likes this

#6 Stelios

Stelios

    Cosmos

  • *****
  • Moderators
  • Posts: 7863
  • Joined: 04 Oct 2003
  • Loc: West Hills, CA

Posted 21 October 2019 - 12:08 PM

If forced to choose between the two I would choose the CGEM. There's no such thing really as "overkill" in mounts--however the CGEM is a heavy mount that doesn't always track well. 

 

My real choice would be the Orion Sirius (or equivalent Skywatcher HEQ5). That's a perfect mount for astrophotography with proven tracking abilities. The new iOptron CEM25 might be a decent alternative, but I would go with the Sirius.

 

Incidentally, if you haven't already bought the Meade camera, I would rethink the purchase. A ZWO or QHY camera is a better option.


  • EFT and MikeMiller like this

#7 Wildetelescope

Wildetelescope

    Surveyor 1

  • -----
  • Posts: 1512
  • Joined: 12 Feb 2015
  • Loc: Maryland

Posted 21 October 2019 - 12:12 PM

Given the following setup and available mounts:

 

A.  What mount* would you choose?;

B.  What auto guider would you choose?

 

Scope: Sky-Watcher Evostar 80: https://www.skywatch...ts/evostar-80ed

 

Camera: https://www.highpoin...ra-color-633001 {includes an auto guider port)

 

Mounts available to us:

 

(1)  Sky-Watcher EQM-25 Mount: https://www.skywatch...ts/eqm-35-mount

 

(2)  Celestron CGEM II EQ Mount: https://www.celestro...gem-ii-eq-mount

 

Thanks.

 

I know that on calm nights, (2) mount is overkill.  Please think creatively.  

That is a loaded question:-)  You will get many opinions. Here is my take.  For a given price point, most mounts are roughly comparable in performance with respect to tracking, independent of brand.   Lower price point mounts tend to encounter more quality control issues (ALL mounts have SOME QC issues, independent of brand). Within a price point range different mounts often emphasize different features (Goto software, electrical connectivity, etc...).  For imaging, I would recommend 1.) Determining what price point you are comfortable with, 2.) Understand what features each mount in that price point has and how each matches with your goals, and 3.) Figure out what your balance between portability vs load capacity is.   Personally, I very much am an advocate of over mounting your scope(ie get the highest load capacity you can afford).   for example, I have no  problem putting an 80 mm scope on an EQ 6(and it is REALLY stable:-).  But, I operate primarily from my front or back yard, and I have a pier.   Travel with heavier mounts is doable, but does require more effort.  Only you can decide what works for you.  Hope this helps!

Cheers!

JMD


  • EFT likes this

#8 Hesiod

Hesiod

    Gemini

  • *****
  • Posts: 3273
  • Joined: 13 Jan 2013

Posted 21 October 2019 - 01:49 PM

Hesiod,

 

This would be a new purchase.

 

What would you buy?

 

PS Mike: I fixed the hyperlinks.  Thanks for the feedback.  

Well, it depends from some factors. First, obviously, the budget. Second, how plan to use the telescope: a CGEM cruises in the 30kg range, the eq3.5 is more or less half as heavy. Third, what are your mid/long term plans: if plan to stay with widefield setups, I see little to be gained by purchasing a large and heavy mount; rather, at the same price, it could make sense to get a better light mount. If plan to switch quickly to larger tubes, a sturdy mount could save you money, even if at the expense of a certain degree of "discomfort" with the present setup if have not the possibility to leave the rig assembled and ready to go.

 

 

Also, if do not already own the camera, I suggest, if are set for cooled CCDs,  to get rather a mono model to take full advantage from this kind of devices' strengths.




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics





Also tagged with one or more of these keywords: astrophotography



Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics