Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

I need an adapter that does THIS...

  • Please log in to reply
16 replies to this topic

#1 jrbarnett

jrbarnett

    Eyepiece Hooligan

  • *****
  • topic starter
  • Posts: 30116
  • Joined: 28 Feb 2006
  • Loc: Petaluma, CA

Posted 06 November 2019 - 03:05 PM

Hi.  I assume it exists.  Here's what I am trying to do.

 

I have a UA Binolight paralellogram mount.  It has a native adapter with a 1/4-20 screw that obviates the need for a separate binocular tripod adapter - in most cases.

 

I have a case where the native adapter doesn't work.  My Celestron Granite ED 12x50s and Bushnell Legend M 8x42 roof prisms have very little space between the barrels to attach a tripod adapter.  The native adapter on the Binolight is too wide to fit between the barrels.

 

What I want is a skinny 1/4-20 female to 1/4-20 male long enough to place the wide part of the native adapter just beyond the objective end of the barrels, allowing these sorts of binoculars to be attached to the mount.

 

I feel silly having to use the small binoculars on my larger parallelogram mounts to solve the adapter issue (larger mounts use add-on tripod adapters).

 

Does such a thing exist?

 

Best,

 

Jim  


  • PirateMike likes this

#2 photoracer18

photoracer18

    Mercury-Atlas

  • *****
  • Posts: 2920
  • Joined: 02 Sep 2013
  • Loc: Martinsburg, WV

Posted 06 November 2019 - 03:13 PM

Pentax made a bino tripod adapter that has a very narrow part that goes between the bino tubes. Model is TP-3 and is carried by opticsplanet. See if that will work for you.



#3 PirateMike

PirateMike

    Mercury-Atlas

  • -----
  • Posts: 2783
  • Joined: 27 Sep 2013
  • Loc: A Green Dot On A Blue Sea

Posted 06 November 2019 - 03:14 PM

You could always design one just the way you want it and have a machine shop make it for you. Just a thought.

 

 

Miguel   8-)

 

.



#4 B 26354

B 26354

    Viking 1

  • -----
  • Posts: 987
  • Joined: 05 Jan 2017
  • Loc: Southern California semi-desert (NELM mag 5.3)

Posted 06 November 2019 - 03:24 PM

Not even remotely sure if this is something like what you need... but:

 

https://www.mcmaster.com/91197a480

 

They have several different widths and lengths.

 

shrug.gif


Edited by B 26354, 06 November 2019 - 03:25 PM.

  • Terra Nova and Dynan like this

#5 Rich V.

Rich V.

    Fly Me to the Moon

  • *****
  • Posts: 6595
  • Joined: 02 Jan 2005
  • Loc: Lake Tahoe area, Nevada

Posted 06 November 2019 - 05:19 PM

If the above item would work for you, just a hardware store 1/4"-20 rod coupling and an appropriate length 1/4" stud or piece of threaded rod inserted into it should do the same.  You can use a hex nut as a "jamb nut" to keep it tight if necessary.


  • Jon Isaacs likes this

#6 jrbarnett

jrbarnett

    Eyepiece Hooligan

  • *****
  • topic starter
  • Posts: 30116
  • Joined: 28 Feb 2006
  • Loc: Petaluma, CA

Posted 06 November 2019 - 06:00 PM

Thanks guys.  The standoff and/or threaded rod solution is what I was imagining.

 

Awesome!

 

- Jim



#7 plyscope

plyscope

    Surveyor 1

  • -----
  • Posts: 1847
  • Joined: 23 Nov 2006
  • Loc: Perth, West Australia

Posted 06 November 2019 - 06:12 PM

Would it give you more clearance if you mounted the bino upside down?



#8 DeanD

DeanD

    Explorer 1

  • -----
  • Posts: 99
  • Joined: 05 May 2018
  • Loc: South Australia

Posted 06 November 2019 - 06:37 PM

This might work too: https://www.vanguard...products/ba-185

 

I have made my own which is only (max) 15mm wide: let's know if you are interested and will post an image. It is made from aluminium channel.

 

All the best,

 

Dean



#9 jrbarnett

jrbarnett

    Eyepiece Hooligan

  • *****
  • topic starter
  • Posts: 30116
  • Joined: 28 Feb 2006
  • Loc: Petaluma, CA

Posted 06 November 2019 - 07:06 PM

Would it give you more clearance if you mounted the bino upside down?

Dunno.  Have to give that one some thought.

 

Here's a picture of the Binolight Mount:

 

http://universalastr.../BinoLight.html

 

One correction I'll make vs. the picture is this.  When I bought mine it was the end of the road for UA and the silver standoff shown in the picture (where the adapter connects to the binocular) does NOT exist on my mount.  Instead the 1/4-20 threaded stud sticks out from the aluminum plate by less than 1/2".

 

Unlike larger parallelogram mounts like the Farpoint UBM where you have a 1/4-20 stud on the carrier arm for the binoculars to which you mount whatever tripod adapter strikes your fancy, you'll see that this lighter duty simpler mount instead features an integrated binocular to mount adapter made of ~1" wide, 1/4" thick aluminum bar stock with a captive 1/4-20 bolt for threading into the binocular's hinge mounting threads.  The 1" width of this integrated adapter is the problem with skinny, smaller rood prism binoculars.

 

I think I can screw two of those 1 1/2" hex standoffs together and move the binoculars back, away form the integrated adapter, enough to fix the problem.  I will try that first because it's easy and off the shelf, and if it's flimsy, look at alternatives.  I suppose mounting small bins on the bigger mount isn't that big of a deal (which is what I do now).

 

Best,

 

Jim


Edited by jrbarnett, 06 November 2019 - 07:23 PM.


#10 John Fitzgerald

John Fitzgerald

    In Focus

  • *****
  • Posts: 6934
  • Joined: 04 Jan 2004
  • Loc: ROR Obs. near Pettigrew, AR

Posted 06 November 2019 - 07:07 PM

This:  I made it from a piece of 3.25 x 3.25 inch by 1/4 inch aluminum angle using a vise, hacksaw, file, 1/4-20 tap, and 1/4 inch drill.

 

Binocular adapter for parallelogram mount.  A short 1/4-20 bolt goes through the upper hole into the binocular tripod adapter hole.

 

 

Attached Thumbnails

  • 20191106_175335.jpg


#11 B 26354

B 26354

    Viking 1

  • -----
  • Posts: 987
  • Joined: 05 Jan 2017
  • Loc: Southern California semi-desert (NELM mag 5.3)

Posted 06 November 2019 - 09:46 PM

How about just using something like this?....

 

https://www.amazon.c.../dp/B000BYH8EQ/


Edited by B 26354, 06 November 2019 - 09:47 PM.


#12 jcj380

jcj380

    Surveyor 1

  • *****
  • Posts: 1551
  • Joined: 08 Jul 2014
  • Loc: 42N 88W

Posted 07 November 2019 - 10:35 AM

Low tech, but what about just an angle iron / corner bracket?  You'd need to buy screws and washers to fit.



#13 jrbarnett

jrbarnett

    Eyepiece Hooligan

  • *****
  • topic starter
  • Posts: 30116
  • Joined: 28 Feb 2006
  • Loc: Petaluma, CA

Posted 08 November 2019 - 02:40 PM

How about just using something like this?....

 

https://www.amazon.c.../dp/B000BYH8EQ/

Too wide to fit between the barrels of narrow roof prism and the mount in question has no way to mount that style of adapter to the mount.  The Binolight mount has a built-in equivalent of the adapter you linked.  Like the one in your link, that native built-in adapter is too wide.

 

You can see the built-in adapter on this mount in this image:

 

http://universalastr...ett 15x70sm.JPG

 

Best,

 

Jim


Edited by jrbarnett, 08 November 2019 - 02:42 PM.


#14 jrbarnett

jrbarnett

    Eyepiece Hooligan

  • *****
  • topic starter
  • Posts: 30116
  • Joined: 28 Feb 2006
  • Loc: Petaluma, CA

Posted 08 November 2019 - 02:45 PM

Low tech, but what about just an angle iron / corner bracket?  You'd need to buy screws and washers to fit.

Might work if it was narrow enough.  Thanks for the idea.

 

Best,

 

Jim



#15 B 26354

B 26354

    Viking 1

  • -----
  • Posts: 987
  • Joined: 05 Jan 2017
  • Loc: Southern California semi-desert (NELM mag 5.3)

Posted 08 November 2019 - 03:17 PM

Too wide to fit between the barrels of narrow roof prism and the mount in question has no way to mount that style of adapter to the mount.  The Binolight mount has a built-in equivalent of the adapter you linked.  Like the one in your link, that native built-in adapter is too wide.

 

You can see the built-in adapter on this mount in this image:

 

http://universalastr...ett 15x70sm.JPG

 

Yeah... sorry. I knew from your posts that the Binolight adapter was 1" wide... but I thought perhaps that the one I linked (or some of the other commercially-available ones) might be more narrow. I like the angle-iron idea.



#16 JimV

JimV

    Messenger

  • *****
  • Posts: 489
  • Joined: 06 Nov 2013
  • Loc: Austin, TX

Posted 09 November 2019 - 06:19 PM

Scopestuff

 

http://scopestuff.com/ss_binx.htm



#17 B 26354

B 26354

    Viking 1

  • -----
  • Posts: 987
  • Joined: 05 Jan 2017
  • Loc: Southern California semi-desert (NELM mag 5.3)

Posted 09 November 2019 - 06:33 PM

Perhaps you meant to link this?....

 

http://scopestuff.com/ss_bita.htm




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics