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Equipment Discussions >> Mounts

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starhacker
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Reged: 08/13/13

Loc: NH, USA
Need equatorial mount for 12.5-inch f/4.5 newt
      #6025232 - 08/14/13 02:16 PM

My 12.5-inch mirror is almost complete and I now have to think about a mount for the (apprx. 58-inch) OTA. I would like to have the option of doing photography and I'm thinking the Losmandy Titan would be more than good enough for that. I think their G-11 would not quite do it. The Titan is also about as much money as I would care to spend. Anyone have thoughts on this? Anyone know a source for a good compatible short pier with feet (as opposed to a tripod)?

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rmollise
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Reged: 07/06/07

Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6025236 - 08/14/13 02:17 PM

If you are not in a big hurry, I'd wait for the EQ-8.

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rolo
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Reged: 01/14/07

Loc: GA, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6025268 - 08/14/13 02:30 PM

The Titan is an excellent choice and its a proven mount. A used HGM 200 is also a good choice. You can even get away with a CGE Pro, about $3K used.

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Stew57
Carpal Tunnel
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Reged: 05/03/09

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Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: rolo]
      #6025379 - 08/14/13 03:28 PM

+1 on the EQ8

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starhacker
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Reged: 08/13/13

Loc: NH, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: Stew57]
      #6025405 - 08/14/13 03:42 PM

The EQ-8 looks to me to be roughly equivalent but less expensive than the Titan. Besides price is there a reason to prefer it? Isn't it pretty much an untested mount at this point? I do like the fact the tripod is close to being a pier. I'd like it better if it were shorter though. I'm trying to avoid needing any kind of ladder.

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Stew57
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Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6025433 - 08/14/13 04:02 PM

If the difference in price is not a factor the Titan is a great mount. The support can't be beat. There is a thread on the EQ8 on the iceinspace forum. The site seems to be down at the moment so I couldn't pot a link. Anyway the PE looks great, it is working with EQMod, and there has been few complaints up until now.

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starhacker
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Reged: 08/13/13

Loc: NH, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: Stew57]
      #6029323 - 08/16/13 02:41 PM

I've yet to find a U.S. supplier for the EQ8 online. The nearest I've found is BC Canada, although they ARE taking preorders and will ship to the U.S. Also, it appears to me there may be two different "Sky-Watcher" companies. Maybe this accounts for the difficulties finding a U.S. presence for the one that makes the EQ series.

At any rate, is anyone aware of a U.S. reseller for the EQ8, preferably near the northeast? Even an eastern Canada reseller might be cheaper shipping for me (CA$236 from BC).


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obin robinson
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Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6029778 - 08/16/13 07:18 PM

For something that big I would put a want ad into the classifieds. Also check eBay. There was a monster EQ on there going for $450 and it has a Byers worm drive.

obin


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obin robinson
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Reged: 10/25/12

Loc: League City, TX
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: obin robinson]
      #6030458 - 08/17/13 08:34 AM

This will swing your telescope and to make it suitable for astrophotography won't eat up the $1,925 left in your budget:

http://www.cloudynights.com/classifieds/showproduct.php?product=85534&sor...

I have the same mount and it is designed for the Starfinder 10" telescope. You need to do some modifications for it to work for astrophotography. It will work though.

obin


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starhacker
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Reged: 08/13/13

Loc: NH, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: obin robinson]
      #6031240 - 08/17/13 03:41 PM

Nice to see a mount that actually has decent setting circles but, too late. I just placed an order for the EQ8 from FocusScientific in Ottawa. The 8% duty for importing to the U.S. adds a lot to the price, but it's still a good price for what it (hopefully) is. I hope to have it by mid October.

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starhacker
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Reged: 08/13/13

Loc: NH, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6145056 - 10/18/13 02:58 PM

In case anyone is interested, my Sky-Watcher EQ8 arrived a week ago from Focus Scientific in Ottawa. Looks good and works with my Orion wifi/StarSeek setup and an iPhone. It will be a little while yet before i'm able to finish and use my 12.5-inch newt on it.

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petemumbower
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Reged: 07/12/09

Loc: West Michigan
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6145296 - 10/18/13 05:37 PM

What was the final priced shipped in US$?

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starhacker
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Reged: 08/13/13

Loc: NH, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: petemumbower]
      #6147579 - 10/19/13 10:47 PM

After shipping, duties, and assorted shipping/customs fees, it was US$4676 total for the mount plus an extra (third) 22 pound counterweight. Your shipping may vary. I'm not that far from Ottawa.

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Jon Isaacs
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Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: obin robinson]
      #6147931 - 10/20/13 06:40 AM

Quote:


I have the same mount and it is designed for the Starfinder 10" telescope. You need to do some modifications for it to work for astrophotography. It will work though.




If I am not mistaken, that mount uses 1 inch shafts. IMHO, it's not up to a 12.5 inch F/4.5.. Traditionally 12.5 inch scopes rode on 1.5 inch or larger shaft mounts.

Jon


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TxStars
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Loc: Lost In Space
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: starhacker]
      #6149180 - 10/21/13 01:00 AM

Let us know how well it works with the 12.5 newt.
Be sure to post photos.


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starhacker
member
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Reged: 08/13/13

Loc: NH, USA
Re: Need equatorial mount for 12.5-inch f/4.5 newt new [Re: TxStars]
      #6149986 - 10/21/13 02:33 PM

As soon as the primary comes back from the coating shop I can take measurements and drill the tube. I have a local machinist milling a dovetail plate. I'll post a pic when it's all assembled. Hopefully the EQ8 is hefty enough for this scope. I'm estimating as much as 90 pounds fully outfit for observing, which is closer to the 110 pound capacity than I had hoped. Those Parks rotating rings are beasts (near 30 pounds total including the radius blocks).

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