Author Topic: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor  (Read 13 times)

meisporbiopop

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Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« on: December 29, 2017, 03:56:31 AM »
New to the hobby. Hate those German mounts with the weights and all. Had the Twilight I mount, but lots of wobble with my 40 inch 12 pound refractor. Looking at the Vixen Porta II mount. Vixen Porta II has a 20 pound capacity, but so did the Twilight I. I just purchased a Meade LX70 5 inch refractor that is 40 inches long and 12 pounds.

Any help would be great.

Please email me at [email protected]



calbeyrefrows

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Re: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« Reply #1 on: December 29, 2017, 03:28:20 PM »
I own two Vixen Porta II Mounts, and even though I love using them, I recognize that they may be taxed too much by a 12-lb. payload. Normally, folks try to place a maximum payloadamounting to only one-half of the rated capacity of the mount, so that would limityou to 10lbs.I have read here on Cloudy Nights that the Twilight I is not as robust as the Vixen Porta II.

noneanoncrag

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Re: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« Reply #2 on: January 08, 2018, 11:20:56 PM »
Thanks Viking 1. Seems like I will have to go with an equatorial mount. What would be the easiest one for me use that is under $400.

Justin Lewis

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Re: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« Reply #3 on: January 10, 2018, 05:05:15 AM »
If you can afford it, I would try one of the great mounts made by Beat Kohler. Search for "aokswiss" in the search engine of your choice and you'll find his website. I took delivery of a fantastic AYOdigi II in black just last Wednesday. It's VERY solid- his load estimate on the webpage must be pretty conservative (30 to 40 lbs). I have a SW ProED 120mm (11ish lbs) and the mount doesn't even act like anything is on it when I set the scope up. I would have gotten an AYO II, but I wanted something a little beefier to accommodate a bigger scope in the future. Note that these mounts are pretty expensive and you have to wait for him to make them, but for the excellent craftsmanship you get, it's well worth it. I am 100% certain that this is my "lifetime" alt-az mount.

highdanmyne

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Re: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« Reply #4 on: January 12, 2018, 02:55:18 AM »
If you want a GEM something at the level of the AVX or Sirius EQ-G would be plenty good enough.

brentioscaraph

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Re: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« Reply #5 on: January 13, 2018, 08:37:08 AM »
darrylspence,

I find the Explore Scientific Twilight II ALT-AZ mount works well with my 25lbs AT 130mm triplet refractor (37.5" in length).

I do use counterweights when using just one scope AND I did install a $8 needle bearing under the top post.

Why? you may ask...

Well I can then ADD a second 20 lb. Celestron C9.25 scope and the mount movement in AZ is as smooth as a baby's buuuuuttt.
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Antonio Zuniga

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Re: Best Alt Alt azimuth Mount For 40 Inch 12 Pound Refractor
« Reply #6 on: January 14, 2018, 05:39:02 AM »
Thanks for all the advice. Howabout the Orion Skyview Pro EQ. How good is it and what is the ease of use?