Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_30_second_exp_2_winners.thumb.jpg.b5430b40547c40d344fd4493776ab99f.jpg

Sign in to follow this  
Commanderfish

Extension for AVX Tripod (for a Giro NOT an AVX mount)

Recommended Posts

Hi there,

I'm looking for an extension tube to put on top of my Tripod.  It's an AVX Tripod, but I won't be using it with an AVX head; it'll be used with a Giro Ercole mount.  Both the Tripod and the Ercole Mount have 3/8" threads on the connector.

I know it's difficult to get an extension to which the AVX mount itself will fit, because it requires a North peg in a different location from the usual Skywatcher types, but that's not an issue here as I'm attaching a Giro mount,  which as far as I can tell does not require a North peg, but tell me if I'm wrong.

All I really need is an extension which will physically fit on the AVX Tripod, not the AVX mount.

Any ideas?

Share this post


Link to post
Share on other sites

Did a lot of research and it seems the answer is the Orion SkyView Pro extension.  This fits on the AVX Tripod.  It has a North pin in the top plate which won't fit the AVX mount without modification, but the pin can be removed.  Once removed, the Ercole Giro (and presumably other mounts not requiring a North pin) will fit on.  Presumably the extension has the 3/8"/M10 thread as it fits onto the AVX Tripod.

 

Will confirm when I've got it and tested it.

Edited by Commanderfish

Share this post


Link to post
Share on other sites

Just to confirm, I got the Orion SkyView Pro Extension and the Ercole mount attached to the AVX tripod with no problems.  As above, I just had to take the north peg off the extension tube (this is accessed by removing the top plate of the tube with an allen key, and removing the peg with a different sized allen key - so make sure you have a set handy).  The top plate of the mount then screws on to the base of the Ercole mount using the Orion extension's built in 3/8" thread.  

Job done in a few mins.

The thread of the AVX tripod also screws onto the bottom of the extension perfectly. In fact the Skyview Pro extension fits beautifully on the AVX tripod - without removing the north peg from the tripod head.  The Ercole fits on top of the extension perfectly too, and they are all in matching black.  When they are assembled it looks like one piece of professional shop-bought kit, not 3 different bits from 3 different companies:)

The extension is essential for anyone with a scope in the 1 metre long range.  My ED127 Apo has a focal length of 952mm and is about 900 mm long including diagonal, PLUS the length of the dew shield which is around another 300mm.  With this set up, even if you accidentally let the clutch/top lock slip whilst an eyepiece is out, the scope can swing round as much as it likes and it still won't hit the tripod legs.    You're also going to set up the tripod legs around half retracted, which means they stick out a lot less, which is a boon as otherwise you'd definitely be tripping over them when viewing near the zenith.

The stability of the tripod/mount is very good, even with the clutches unlocked there is little vibration on bumping at x200 magnification.  The AVX has 2" steel legs, whereas most Ercoles I have seen have been mounted on shorter 1.75" legs from the EQ5.

Only one downside, for travelling purposes the extension tube is pretty heavy, about 4 Kg I'd say.  This brings the combined weight of the Ercole, AVX tripod and Orion extension to about 16Kg.  However this is still a weight improvement on the standard AVX mount and tripod combination, which weigh 16Kg without an extension and then require 5-10Kg of counterweight.

All in all a very good Alt-Az set up, I will review properly once there's some clear sky and I've got my Baader 1kg counterweight on to a long dovetail.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By vineyard
      Hello,
      I have a mint condition HEQ5 tripod for sale.  3/8" thread mounting bolt, spreader bar, 1.75" diameter legs.  Its never been used (I got it as part of an overall package, but I already have a Berlebach I use).  Still with the original polystyrene at the ends in the box it came in.  These sell for GBP109 new.  Happy to sell it for GBP70 plus postage (which in the UK via hermes should be about GBP9) or to hand over boxed in person (London).
      I'm new on SGL so don't have ratings here, but I do have 100% ratings on eBay.  Figured I would offer it on SGL first as I enjoy the community.  If no takers, then will offer it on other sites.
      Cheers,
      Vin
      ***** REDUCED to GBP 70 + p&p as I have a ZWO I need to pay for   *****



    • By Mark Daniels
      Thought this might be of interest
      made binocular tripod modification to use my25x100 celestrons. The original tripod was redundent so added £30 of steel and bits and it works well. Bit of refining but may be later!






    • By Greg6498
      Took my Celestron AVX Mount out this afternoon to familiarize my self with it in the daylight. Wasn’t sure if or how it would work, since it’s my first goto Mount. I got it setup per the directions and attached the SkySync GPS. It locked on my location very quickly so I did the Quick Align option just as a test. The polar scope was oriented north, and I used Sky Safari to locate stars I couldn’t see cause it was daytime. My first choice was Sirius and it slewed  right around to what should be the general vicinity! I then chose Venus in the West and off it went! I hit home and it went back to the original setup position. I can’t wait to take it out tomorrow night and really put it through it’s paces! This is totally most excellent!
    • By IvIark
      Note this is for the fork mount, heavy duty tripod and accessories only.  No OTA included.
      This sale is for the LX50 fork mount from my recently de-forked Meade 10" SCT.  In perfect working order, this LX50 version has the optional encoders fitted, which means if you can get you hands on the Meade Magellan II computerized hand controller it can become a "push to" mount.
      Comes with 4 speed hand controller, tripod, an equatorial wedge to allow long exposure astrophotography. Also has an autoguider port.
      Perfect for spares or retrofits for existing LX50 owners or for DIY projects where someone wants to equatorially (or even just AltAz) mount a large telescope OTA.
      Meade info: Heavy-duty LX200-type fork mount with 4"dia. sealed polar ball bearing; 5.75" LX worm gear and quartz-microprocessor-controlled DC servo-motor in RA; tangent arm and DC servo motor control system in Dec; multi-function control panel; manual and electric slow-motion controls and setting circles in both axes; keypad hand controller; 4-speed drive controls on both axes; battery compartment accepting six AA-size batteries
      This is a heavy duty mount and will weigh around 40kg so I would much prefer collection from Manchester, but will consider shipping at extra cost to the buyer.  I don't expect it will be cheap though and will need to be shipped in two packages because of the size of the tripod and forks.
      I would like £150 ONO
       









    • By Astrofriend
      I have used my Star Adventurer for a while now and is very satisfaid with it. But it could be improved and I have installed an angled viewfinder to the polar telescope, rebuilt the wedge, etc.
      But there is also the tripod, the one I have now is stable but very big, nothing that I could take with me when traveling. All photagraphy tripods I have looked at that is maximum 0.5 meter long folded look a bit weak or are very expensive. Now I have bought an used Manfrotto model 144, very stable but too long folded. This weekend I cut off the legs to make it shorter. I don't need very high tripod now when using the angled viewfinder.
      Here is my tripod project:
      http://www.astrofriend.eu/astronomy/projects/project-star-adventurer-tripod/01-project-star-adventurer-tripod.html
      /Lars
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.