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shams42
Pooh-Bah


Reged: 01/05/09
Posts: 1066
Loc: Kingsport, TN
Vixen Porta-Mount sufficient for 6" SCT?
      #3290880 - 08/24/09 10:10 AM

I noticed that the max payload capacity of the porta-mount is listed at 10 lbs. My C6 OTA with accessories is pretty close to 10 lbs. Would the Porta be sufficient for this scope? How much vibration could I expect while focusing and slewing?

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OTAs: TOA-130, 8" f/4 Newt, 10" f/4.7, Newt, SV80S LOMO f/6
Mount: Takahashi NJP Temma 2
CCD: QSI-583wsg with Astrodon filters

My astrophotography gallery




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SATMAN
scholastic sledgehammer


Reged: 12/02/07
Posts: 777
Loc: NJ 39.7 lat., -74.3 long
Re: Vixen Porta-Mount sufficient for 6" SCT? new [Re: shams42]
      #3290956 - 08/24/09 10:53 AM

shams42,
I have my Brandon 94 mounted on mine it is Close to 14 lbs and works fine,I have seen the weight range listed by many dealers as 10-20 lbs maximum load which I think is over estimated. It appears that shorter tubes do allow you mount a slightly heavier telescope. I have had the power to 180X vibration is not much of a problem Though I do use a set of Celestron Anti-vibration pads. If you do get this mount be sure to get Longer flexiable cables they definately make life easier. The most critical thing is balance when using this mount, Only adjust the tension to hold the scope, fine tune the balance by sliding the tube along the dovetail bracket.

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CELESTRON C102 GP
SUPER C8+
VIXEN 90 CUSTOM
QUESTAR 3.5 STANDARD POWER GUIDE II ON TRISTAND
CORONADO PST DOUBLE STACKED
BRANDON 94mm f/7 ON 1/4 HALF HITCH
2-VINTAGE ORANGE TUBE C-90 ASTRO (CIRCA 1977,79)
76MM F15 MAYFLOWER (ROYAL ASTRO)'68
TASCO 7TE-5 '69, 12TE-5 '66, 9TE-5 '73
ASTELE 95
MEADE 2045
BRANDON 4,6 8,12,16,24,32,48 2.4X DAKIN BARLOW
VARIOUS NAGLERS 3-6 ZOOM,7,9,11,13,16,24PAN
ETHOS 6mm, 10mm
EDMUND RKE (1978) 8,12,15,21.5,28,2.5 BARLOW
ZEISS 10X40B/GA T*P* BINO


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Doug76
Long Achro Junkie


Reged: 12/05/07
Posts: 10830
Loc: Refractor Heaven
Re: Vixen Porta-Mount sufficient for 6" SCT? new [Re: shams42]
      #3291707 - 08/24/09 05:48 PM

Quote:

I noticed that the max payload capacity of the porta-mount is listed at 10 lbs. My C6 OTA with accessories is pretty close to 10 lbs. Would the Porta be sufficient for this scope? How much vibration could I expect while focusing and slewing?




Yes, absolutely enough, and not much jitter at all.

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Doug
Truck Stop Astronomer

Chief Astronomer: Pilot House Observatory
Hunter, Fisher, Outdoorsman

Carton Scope Club
Six Inch Or Larger Refractors


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markan
super member


Reged: 07/13/09
Posts: 135
Re: Vixen Porta-Mount sufficient for 6" SCT? new [Re: Doug76]
      #3291792 - 08/24/09 06:33 PM

I just ordered a Porta Mount. I believe there's 2 varieties now. I believe the larger has 20lbs payload

Vixen Porta Mount & Vixen Mini Porta Mount

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Sky-Watcher 100mm ED f/9 refractor
Sky-Watcher 200mm f/5 reflector
EQ5 mount, Orion SkyView AZ


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Bill Barlow
Carpal Tunnel


Reged: 12/03/07
Posts: 1714
Loc: Overland Park KS
Re: Vixen Porta-Mount sufficient for 6" SCT? new [Re: shams42]
      #3292916 - 08/25/09 10:26 AM

I own a Porta and it will easily support the C6 with very little vibration. In fact, I also had mounted on it a Meade 8" classic SCT that weighed about 16 pounds with diagonal/finder scope and it also worked great with not much vibrational dampening time. Very good mount for the money.

Bill

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Telescopes: Celestron C14 SCT..Meade 12 ACF..Meade 8 ACF/R..Stellarvue 102ED refractor

Mounts: UA UniStar Deluxe duel clamping saddle on a Celestron CGE tripod...UA UniStar Deluxe on a UA medium surveyor tripod...UA UniStar Light on a UA light surveyor tripod. All with custom made "Manny Miles" eyepiece trays.

Binoculars: Garrett Optical 10x50 and 11x56.

Eyepieces: TV Naglers, Panoptics and Plossl's. Also Pentax 20XW, 40XW and a Baader 31mm Aspheric



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Bugsi
super member


Reged: 09/20/07
Posts: 159
Loc: Sunnyvale, CA
Re: Vixen Porta-Mount sufficient for 6" SCT? new [Re: Bill Barlow]
      #3294233 - 08/25/09 09:43 PM

I've used my Orion 150mm Mak on my Vixen Porta, no problem. I highly recommend you upgrade the Vixen Porta with a Manny's™ Panhandle and the longer Antares control cables ($10 at Agena Astro):
http://www.agenaastro.com/Antares-Flexible-Slow-Motion-Cable-p/pama-an-cs.htm

With a long focal length scope and a high magnification eyepiece, keeping things in view is a little trickier than with a GEM.

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Orion 150mm Mak, Orion 100mm Skyview Pro Refractor, Orion 80mm ShortTube Refractor.


Foothill Observatory, Los Altos, CA


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TimD
Pooh-Bah


Reged: 02/16/05
Posts: 1380
Loc: CA USA
Re: Vixen Porta-Mount sufficient for 6" SCT? new [Re: Bugsi]
      #3298583 - 08/27/09 08:41 PM

I didn't know they were steady at the bigger payloads. Just made my mind up to get one. Thanks.

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Takahashi TSC 225
WO Megrez 102
Meade ETX 90, ETX 125
Meade LX90
LX200 10"
Classic Orange tube C14, C90, C5+
Meade 5000 80mm APO
Etc,Etc,Etc!!


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