Author Topic: EQ8/HDX110 vs G11GT - interfacing  (Read 825 times)

Cleo Wickware

  • Active Astronomer
  • ***
  • Posts: 142
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
EQ8/HDX110 vs G11GT - interfacing
« on: December 27, 2017, 12:13:09 PM »
So I am down to these two in my price range - yeah Id love a big APys mount but thats out my range just now and I have tobalance $ vs the number of nights I get in a year I can use the thing!!

I would have loved a CGX but hey ... too unreliable for my liking.

Sooo.....

The EQ8/HDX110 seems to be alittle more accurate at +/- 3 arc sec than the G11GT at +/- 5

The electronics on the G11GT HC seem a bit better and more interfacing options such as IP based comms.

On the other hand its being used for imaging so most of the time I'd be remote into the obs PC and using SGP.

Theres also about 1000 bucks difference between the two - and thats a hunk of an ASI1600 to think on!

So ....

I am interested in thoughts about the interfacing of the EQ8 vs G11GT

In reality its going to be EQMOD on the EQ8/HDX110 vs the Gemini 2 system

I am leaning to save the $1K and go with the EQ8 but still looking at the G11GT

really hard at this price range to choose



scolposnimbworr

  • Active Astronomer
  • ***
  • Posts: 126
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #1 on: December 30, 2017, 04:27:43 AM »
I am a step down from you. I am looking at a G11, Atlas pro, or CEM60. I am leaning towards Losmandy. Really because I like the machined mount vs cast, also the USA made is nice. I like the idea of being able to call and talk to someone and get help if I need it. The HDX110 does look really nice though.

Kareem Gillespie

  • Active Astronomer
  • ***
  • Posts: 104
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #2 on: December 30, 2017, 04:51:22 AM »
Losmandy and never look back.

tenewbandhams

  • Active Astronomer
  • ***
  • Posts: 115
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #3 on: January 03, 2018, 09:14:17 PM »
Quote
Losmandy and never look back.

ok .. based on ???

they both seem reliable ...

I don't tend to see many issues from either

Both are HD mounts

The handset on the EQ8 sucks .. but then I dont use it much

The justification for spending an extra 1K is ..... ??

BTW I am in NZ ... USA built or EU or anywhere else is irrelevant .. its all more than a phone call or quick ground shipping away

trualolalun

  • Active Astronomer
  • ***
  • Posts: 112
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #4 on: January 04, 2018, 05:57:02 PM »
Quote
I am a step down from you. I am looking at a G11, Atlas pro, or CEM60. I am leaning towards Losmandy. Really because I like the machined mount vs cast, also the USA made is nice. I like the idea of being able to call and talk to someone and get help if I need it. The HDX110 does look really nice though.

iOptron isn't made in USA but you do easily reach a person by email. Which when you have problems is actually better than talking over the phone as you can send guide logs, pictures and such.

bayretide

  • Active Astronomer
  • ***
  • Posts: 116
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #5 on: January 10, 2018, 01:33:59 PM »
I would go for the HDX110 personally. Not that the Losmandy isn't a good mount, but the capacity is huge and you are unlikely to overload it very easily.
I actually was holding out for the HDX110 myself but had a moment of weakness and ended up with the Atlas Pro EQ/G and couldn't be happier. It was a HUGE step up from the AVX I have. It's silent, reliable and has encoders on it to make sure it goes where I want and verifies that position. All told, I am probably going to get an HDX110 anyway pretty soon since I am wanting to travel to Star Parties more and I want a reliable mount with me so I will take the Atlas on the adventures.
Of course, if I win the lottery, I will get a 10 Micron..

bullgidava

  • Active Astronomer
  • ***
  • Posts: 126
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #6 on: January 12, 2018, 02:20:09 AM »
Quote
I would go for the HDX110 personally. Not that the Losmandy isn't a good mount, but the capacity is huge and you are unlikely to overload it very easily.
I actually was holding out for the HDX110 myself but had a moment of weakness and ended up with the Atlas Pro EQ/G and couldn't be happier. It was a HUGE step up from the AVX I have. It's silent, reliable and has encoders on it to make sure it goes where I want and verifies that position. All told, I am probably going to get an HDX110 anyway pretty soon since I am wanting to travel to Star Parties more and I want a reliable mount with me so I will take the Atlas on the adventures.
Of course, if I win the lottery, I will get a 10 Micron..
ohh likewise .... if I had 15K to drop on a mount it would be different

I read that twice as I thought you meant take the HDX110 with you!!!

You need some muscle to use that as a grab n go!!

Big + for both these are the head only purchase .. as its going on a pier

I think its looking good for the HDX110 .. 1K is a lot of difference .. from what I am reading its an accurate mount and as you say capable of a huge load

I like the steppers in the mount too .. my CGEM sounds like a 12v truck winch sometimes!!!

breadexgera

  • Active Astronomer
  • ***
  • Posts: 116
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #7 on: January 12, 2018, 10:56:39 AM »
What OTA will you be putting on your new mount?

I am also debating which new mount to get. I am drawn towards mounts that are available without a tripod, because I have several already and to save space in my roll-off I'm moving to steel piers.

The CGX-L must be purchased with a tripod which adds about $300-500 in unwanted cost.

The G11GT seems like a very good value but it's just above my price limit and it's currently got a wait list.The CEM60 seems like the best overall value for OTAs under 35lb or so while the EQ-8 seems like the best overall value.

quiterhardpho

  • Active Astronomer
  • ***
  • Posts: 109
  • Activity:
    0%
  • Reputation: +1/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #8 on: January 14, 2018, 06:04:30 AM »
EdgeHD1100

Plus extras prob close to 20kg... 40lb

my only issue might be shipping weight of an eq8

still working on that

redsmicsiti

  • Active Astronomer
  • ***
  • Posts: 114
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #9 on: January 18, 2018, 12:19:57 AM »
I have no experience with the EQ8/HDX110 but I've heard their GOTO pointing accuracy is a bit lackluster and the mount head is like transporting a boat anchor. Plus the tripod looks super heavy and cumbersome to setup. Losmandy mounts are excellent quality all machined parts with tighter tolerances and with a beautiful anodized finish. The Gemini II has a learning curve but once you get used to that it becomes easy to work with. The model building is nice giving good pointing accuracy. You'll definitely get good tracking performance, not quite premium mount level but better than the Synta mass produced mounts and the G11GT comes with a new one piece worm block design. I love the Losmady HD tripod design it is very easy to transport & setup and very stable. I wish I still had that one.

Tyler Fonseca

  • Active Astronomer
  • ***
  • Posts: 135
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #10 on: January 21, 2018, 12:00:11 AM »
Quote
What OTA will you be putting on your new mount?

I am also debating which new mount to get. I am drawn towards mounts that are available without a tripod, because I have several already and to save space in my roll-off I'm moving to steel piers.

The CGX-L must be purchased with a tripod which adds about $300-500 in unwanted cost.

The G11GT seems like a very good value but it's just above my price limit and it's currently got a wait list.The CEM60 seems like the best overall value for OTAs under 35lb or so while the EQ-8 seems like the best overall value.

The wait list for a Losmandy is only about 6 weeks as they are made to order. However that point is moot if it's too much for your budget.

Alejandro Taylor

  • Active Astronomer
  • ***
  • Posts: 130
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #11 on: January 23, 2018, 03:00:47 AM »
Let me caution about making your decision on advertised tracking numbers
First there is no statistical difference between 3 and 5 arc seconds as there are many variables in how the number was derived, under what conditions, by whom, and was the advertising director there at the time
Second you are comparing mass produced mounts to 'almost' hand crafted mounts
Further the mass produced brands change models (with non interchangeable parts) almost as fast as you change your socks
The almost hand crafted (as well as the premium hand crafted) make the same mount with the same parts for decades. And in many cases with the same employees machining the same parts for decades
I have nothing against mass produced. I currently have a CGEM I have used for several years. It's tour of duty will be over in the near future as I am in the process of moving from primarily visual astronomy to EAA/Photo due to vision issues so I have some of the same questions as you that I am working through.

thesaroha

  • Active Astronomer
  • ***
  • Posts: 104
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #12 on: January 23, 2018, 06:59:28 AM »
Quote
Quote
Losmandy and never look back.
ok .. based on ???
they both seem reliable ...
I don't tend to see many issues from either
Both are HD mounts
The handset on the EQ8 sucks .. but then I dont use it much
The justification for spending an extra 1K is ..... ??
BTW I am in NZ ... USA built or EU or anywhere else is irrelevant .. its all more than a phone call or quick ground shipping away

Machining on the losmandy is a lot better

safrioheartli

  • Active Astronomer
  • ***
  • Posts: 115
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #13 on: January 23, 2018, 01:42:19 PM »
Quote
I have no experience with the EQ8/HDX110 but I've heard their GOTO pointing accuracy is a bit lackluster and the mount head is like transporting a boat anchor. Plus the tripod looks super heavy and cumbersome to setup. Losmandy mounts are excellent quality all machined parts with tighter tolerances and with a beautiful anodized finish. The Gemini II has a learning curve but once you get used to that it becomes easy to work with. The model building is nice giving good pointing accuracy. You'll definitely get good tracking performance, not quite premium mount level but better than the Synta mass produced mounts and the G11GT comes with a new one piece worm block design. I love the Losmady HD tripod design it is very easy to transport & setup and very stable. I wish I still had that one.

yeah this is going on a pier .. def not lugging any big mountround!!!

Alex Manuel

  • Active Astronomer
  • ***
  • Posts: 114
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: EQ8/HDX110 vs G11GT - interfacing
« Reply #14 on: January 26, 2018, 01:21:14 AM »
Quote
EdgeHD1100

Plus extras prob close to 20kg... 40lb

my only issue might be shipping weight of an eq8

still working on that

Will it be observatory housed?

I've had experience, via a friend, with two EQ-8s (actually HDX-110s) The first unit had bad spot on the worm and was exchanged for no cost with a unit that met Orion's published PE of +/- 3 arc secs, Pointing accuracy with the HC and 3 star alignment, encoders off, was about ~5-7 arc minutes. EQMOD could be expected to reduce that to an all sky pointing accuracy of ~1-2 arc minutes and PECprep should reduce PE to ~1.5 arc seconds. Setup was fairly easy but it is very heavy. The overly elaborate pier mount (IMHO) is very stable and easy to adjust and has some height adjustment as well. If space permits, it will be as stable as a permanent pier. The HC doesn't have all the bells of whistles of the Celestron system, but it still does all that is required in an intuitive format.

I've had experience with 4 G11s and a CI-700 which uses a similar worm/worm gear arrangement. PE on the G11s is good, but not excellent, however, I think they all have the older worms with lower accuracy. The Losmandy G-11 clutches are not the greatest but acceptable and much superior to the CI-700 clutches (I had my CI-700 modded with roller thrust bearings and with this mod the clutches are superior to the G-11). The biggest drawback of the Losmandy mounts is also shared with the EQ-8, namely non-spring loaded Dec worms. The Dec worm can be adjusted to minimal backlash but some is always present otherwise the worm gear will bind at some point. Backlash compensation can compensate for the play to some extent. Expect to spend time on this. I have no experience with the Gemini system.

If I was to use the EQ-8 in the field I would adapt it to a folding tripod to reduce the overall weight.

On paper the CEM-60 is superior to the EQ-8 and G11 for lighter OTAs and theoretically better than the G11 as both have similar weight capacities, but I have no experience with it. If I get one, I will test it with a 10in SCT OTA and if this is too heavy, I will use it with my Edge 8.