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Mounting 4" binoculars on a Half Hitch MKII

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#1 rfic1

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Posted 06 August 2014 - 04:20 PM

I recently acquired a Half Hitch Mark II mount to use with my 4" Miyauchi binoculars. I finally received the L bracket required to mount the binos to the dovetail plate. All is properly mounted but I am having considerable trouble acheiving proper balance for the mount to funtion properly. Point the mount up to the zenith and they fall backwards, Towards the horizon and they fall forward. If I tighten the tension brake to slove slove that issue, then the Alt slow motion control slips.  For a number of years I have used the Lightspeed Wagon to mount the binos and they did a great job. I however sold them in favor of the lighter more portable half hitch. I'm begining to think I made a huge mistake in doing so. Any tips on mounting the 4" Miyauchi's to the half hitch would be appreciated.



#2 Tamiji Homma

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Posted 06 August 2014 - 05:36 PM

Hi

 

HalfHitch mount needs a little effort to understand how to do two axis balance properly.

It took me some time to get used to it.  You might want to email to Charles to get two axis balance 

instruction note first.

 

You would need to change saddle height and L-bracket height to get two axis balanced besides

slide dovetail back and forth, weight trimmer, finder scope if you have it.

 

Once you achieve two axis balance and perfectly leveled, HH moves smoothly and stops at any direction, and

slow motion control does not slip at all.  You need to master it :)

 

I have a few photos to show how I mounted APM 100ED binoculars on HH.

With APM 100ED, The L-bracket didn't have enough width so I had to cascade dovetail.

It looks ugly but it did work.

 

Smaller binoculars (like Kowa Highlander) did fit without extending the bracket).

Probably Miyauchi fits well.

 

Good luck :)

 

Tammy

 

large.jpglarge.jpglarge.jpglarge.jpglarge.jpg



#3 rfic1

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Posted 06 August 2014 - 06:23 PM

Thanks Tammy,

That's exactly how  I have them mounted. I do have the balance weight.  I guess I need to fiddle with them a bit more. BTW the Miyauchi's do fit without a extended plate off the L bracket.



#4 Quintessence

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Posted 09 August 2014 - 01:56 PM

You will NOT need the balance trim-weight.  As Tammy has correctly stated, you WILL need to perform the two-axis balance procedure -- and I do have instructions for doing it.  It is important to follow a methodical procedure that isolates the up-down component of balance from the end-to-end compontent of balance.  If the Half Hitch is dedicated entirely to the Miyauchi binocular, I would suggest entirely removing the trim-weight AND bracket PRIOR to performing the two-axis balance procedure.  You just won't need it -- and taking them off enhaces portability.

 

Charles



#5 Redondo

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Posted 22 November 2016 - 09:28 AM

Hi

 

HalfHitch mount needs a little effort to understand how to do two axis balance properly.

It took me some time to get used to it.  You might want to email to Charles to get two axis balance 

instruction note first.

 

You would need to change saddle height and L-bracket height to get two axis balanced besides

slide dovetail back and forth, weight trimmer, finder scope if you have it.

 

Once you achieve two axis balance and perfectly leveled, HH moves smoothly and stops at any direction, and

slow motion control does not slip at all.  You need to master it :)

 

I have a few photos to show how I mounted APM 100ED binoculars on HH.

With APM 100ED, The L-bracket didn't have enough width so I had to cascade dovetail.

It looks ugly but it did work.

 

Smaller binoculars (like Kowa Highlander) did fit without extending the bracket).

Probably Miyauchi fits well.

 

Good luck :)

 

Tammy

 

large.jpg

 

Hi Tammy

 

Your setup was excellent and I'm still copying it after more than 2 years. Just one question - were you mounting the Highlander with only 1 screw? I thought it's difficult to stop the binocular from moving around with only 1 screw fixed on the L bracket. Is there any additional secure measure you used?

 

Thanks

Howard



#6 Tamiji Homma

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Posted 24 November 2016 - 01:31 PM

 

Your setup was excellent and I'm still copying it after more than 2 years. Just one question - were you mounting the Highlander with only 1 screw? I thought it's difficult to stop the binocular from moving around with only 1 screw fixed on the L bracket. Is there any additional secure measure you used?

Hi Howard,

 

Yes, single screw isn't enough to prevent from rotating if you apply force hard enough to binoculars.

Practically, it wasn't issue since HH mount rotates smoothly by pushing binoculars.

 

Ideally, it would be nice to do either multiple screws or somehow utilizing the two dimples to secure the binoculars to prevent from rotating even with enough force.

 

I've tried to put thin film (or tape) between L-bracket and binoculars shoe to increase friction.  It was some success but it wasn't perfect.

 

Tammy



#7 Rich V.

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Posted 24 November 2016 - 02:44 PM

Tammy, is there anything you see that would prevent drilling and tapping those "dimples"?

 

Rich



#8 Redondo

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Posted 24 November 2016 - 08:21 PM

 

 

Your setup was excellent and I'm still copying it after more than 2 years. Just one question - were you mounting the Highlander with only 1 screw? I thought it's difficult to stop the binocular from moving around with only 1 screw fixed on the L bracket. Is there any additional secure measure you used?

Hi Howard,

 

Yes, single screw isn't enough to prevent from rotating if you apply force hard enough to binoculars.

Practically, it wasn't issue since HH mount rotates smoothly by pushing binoculars.

 

Ideally, it would be nice to do either multiple screws or somehow utilizing the two dimples to secure the binoculars to prevent from rotating even with enough force.

 

I've tried to put thin film (or tape) between L-bracket and binoculars shoe to increase friction.  It was some success but it wasn't perfect.

 

Tammy

 

Thanks for the answer Tammy.



#9 Tamiji Homma

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Posted 25 November 2016 - 11:25 AM

Tammy, is there anything you see that would prevent drilling and tapping those "dimples"?

 

Rich

 

Hi Rich,

 

No, I don't see anything preventing from tapping threads in the dimple area.

 

I am thinking of buying Kowa Highlander's center mount for my Christmas.

since US dollar is getting stronger against yen :)

 

Tammy


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#10 Redondo

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Posted 26 November 2016 - 03:27 PM

 

Tammy, is there anything you see that would prevent drilling and tapping those "dimples"?

 

Rich

 

Hi Rich,

 

No, I don't see anything preventing from tapping threads in the dimple area.

 

I am thinking of buying Kowa Highlander's center mount for my Christmas.

since US dollar is getting stronger against yen :)

 

Tammy

 

I'm thinking about the same. Can the Kowa mount be used for other binoculars like Nikon 18x70?



#11 Rich V.

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Posted 26 November 2016 - 04:36 PM

Can the Kowa mount be used for other binoculars like Nikon 18x70?

 

The Kowa center mount looks like it's proprietary for the Highlander.  Looks nice and simple, though, compared to the Half Hitch.   :D

 

Here's a photo:   http://www.eurooptic...nt-bl8j-mt.aspx

 

All you need for your 18x70s is the Nikon 7806 adapter.  It fits any mount/tripod head/QR plate with a 1/4"-20 attachment screw.  The Nikons need an adapter that grabs the hinge; no threaded mounting hub...

 

https://www.bhphotov...od_Adapter.html

 

Rich



#12 Redondo

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Posted 26 November 2016 - 10:01 PM

 

Can the Kowa mount be used for other binoculars like Nikon 18x70?

 

The Kowa center mount looks like it's proprietary for the Highlander.  Looks nice and simple, though, compared to the Half Hitch.   :D

 

Here's a photo:   http://www.eurooptic...nt-bl8j-mt.aspx

 

All you need for your 18x70s is the Nikon 7806 adapter.  It fits any mount/tripod head/QR plate with a 1/4"-20 attachment screw.  The Nikons need an adapter that grabs the hinge; no threaded mounting hub...

 

https://www.bhphotov...od_Adapter.html

 

Rich

 

Thanks for the info Rich. I already have the Nikon adapter but I'm not happy with it as it can not hold the binocular steadily. I'm just trying to find some justifications for the purchase of Kowa mount - it will be very convincing if it can support other binoculars.



#13 Redondo

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Posted 26 November 2016 - 10:32 PM

This is a Nikon 18x70 with adapter mounted on a quarter hitch and RRS tripod. I have to more it carefully as there is only one screw fixed on the adapter.

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#14 Allardk

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Posted 27 November 2016 - 07:41 AM

I use the Cartoni Focus HD for the Kowa. Works effortlessly. Together with a geared Manfrotto Carbon tripod it became my travel setup.

The Cartoni is about 550 euro in Europe. Heavily overpriced in the USA.

 

For the APM100-45 I use a Manfrotto 516. Works very well together. 

 

Problem with video heads at some point is the price. If you go heavier than the APM 100-45 APO the price shoots up. In favor: easy to setup and use. 

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#15 Tamiji Homma

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Posted 03 December 2016 - 07:27 PM

 

Can the Kowa mount be used for other binoculars like Nikon 18x70?

 

The Kowa center mount looks like it's proprietary for the Highlander.  Looks nice and simple, though, compared to the Half Hitch.   :D

 

Here's a photo:   http://www.eurooptic...nt-bl8j-mt.aspx

 

All you need for your 18x70s is the Nikon 7806 adapter.  It fits any mount/tripod head/QR plate with a 1/4"-20 attachment screw.  The Nikons need an adapter that grabs the hinge; no threaded mounting hub...

 

https://www.bhphotov...od_Adapter.html

 

Rich

 

 

The Kowa Highlander Center Mount delivered from Japan today.  I put it on Avalon T-Pod 130 with single center 3/8"-16 bolt, flat surface, standard interface like DM-4/DM-6/T-Rex/HalfHitch.

 

It looks nice and moves smoothly as designed.

 

large.jpg

 

large.jpg

 

large.jpg

 

Close up on mounting area:

 

large.jpg

 

 

Tammy


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#16 Redondo

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Posted 03 December 2016 - 11:38 PM

 

 

Can the Kowa mount be used for other binoculars like Nikon 18x70?

 

The Kowa center mount looks like it's proprietary for the Highlander.  Looks nice and simple, though, compared to the Half Hitch.   :D

 

Here's a photo:   http://www.eurooptic...nt-bl8j-mt.aspx

 

All you need for your 18x70s is the Nikon 7806 adapter.  It fits any mount/tripod head/QR plate with a 1/4"-20 attachment screw.  The Nikons need an adapter that grabs the hinge; no threaded mounting hub...

 

https://www.bhphotov...od_Adapter.html

 

Rich

 

 

The Kowa Highlander Center Mount delivered from Japan today.  I put it on Avalon T-Pod 130 with single center 3/8"-16 bolt, flat surface, standard interface like DM-4/DM-6/T-Rex/HalfHitch.

 

It looks nice and moves smoothly as designed.

 

Close up on mounting area:

 

Tammy

 

Thanks for the report and it looks awesome! So I don't think the kowa mount can be used with any other binoculars you have, right?

Do you think I can mount the kowa and mount on a RRS TVC-34 as a G&G setup?



#17 Allardk

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Posted 04 December 2016 - 02:43 AM

Beautiful engineering....but for me a geared tripod is essential for comfortable observing.....



#18 Tamiji Homma

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Posted 04 December 2016 - 11:41 AM

 

 

Thanks for the report and it looks awesome! So I don't think the kowa mount can be used with any other binoculars you have, right?
Do you think I can mount the kowa and mount on a RRS TVC-34 as a G&G setup?

 

You would need special adapter to utilize the Kowa Center Mount for other binoculars.

Well, the mount comes with the adapter for Kowa Highlander.  You replace original adapter with the adapter

to attach binoculars to Center Mount.

 

RRS TVC-43 may be a little too small for this.  Here is difference between TVC-43 and TVC-33.

 

large.jpg

 

 

Here is Kowa Highlander on Kowa Center Mount/RRS TVC-43.  I think it has good stability.

 

large.jpg

 

large.jpg

 

large.jpg

 

Tammy


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#19 Redondo

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Posted 04 December 2016 - 03:25 PM

Thanks Tammy. I'll place an order on the central mount!




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