Hensoldt Spotter 60: ARCA plates with anti-rotation pin?

[Conqueror]

Hi all,

I have a Spotter 60 and want to upgrade to an ARCA plate for it that has an anti-rotation pin. I have had a lot of difficulty finding appropriate specs or models. It appears that the pin spacing is around 13mm from the 3/8-16 tripod threads but I'm not sure it's exactly 13mm. And I know generally camcorders use the anti-rotation pin but very few models available list the pin spacing. Does anyone know the exact pin hole spacing? Or can anyone point out a specific ARCA base that is known to work properly with the Spotter 45/60?

Thanks!

 

[Conqueror]

For anyone needing this intel in the future, I actually received a lightning-fast reply from Hensoldt customer service. They say the spacing is 14mm from the center of the tripod threads to the center of the anti-rotation pin. Still looking for an ARCA plate that would fit that requirement.

 

[Trigger Monkey]

This one off Amazon looks like it could work.

Amazon product ASIN B014QX26LM

 

[Conqueror]

Not seeing a link or image in your post.

 

[Trigger Monkey]

I'm not sure what's up on your end but it's showing up for me on three devices. Look up Sirui TY-70A on Amazon, it's an Arca plate with pin.

 

[SharpsNitro]

RRS also makes one, or at least they used to.

 

[Conqueror]

I spoke to RRS about it, they don't make one any more unfortunately. They only make a single plate with 3/8-16 and there is no pin. I did find that TY-70A earlier but I can't find the pin dimensions anywhere online. May be a case of "buy it and hope it fits."

 

[g19man]

Edit: Sorry, I just realized Gray Ops is 1/4-20. Ignore below...

They don't list the dim, but SAP or Gray Ops directly should be able to give you an answer:

Gray Ops CNC 4-Way Dovetail Mount (Anti-Rotate) - Short Action Precision

NOTES: This product has an Anti-Rotate Pin (PLEASE MAKE SURE your accessory has an opening for it) PURPOSE: Attach to bottom of scopes, binoculars, or anything with ¼-20 threads FEATURES: Machined from 6061 Aluminum Type II Black Anodizing 4 side dovetail design allows for mounting in the 90...

www.shortactionprecision.com

 

[derek1ee]

Didn't Hensoldt comes with a reducing sleeve to go from 3/8 to 1/4?

If not, I'm working on a more universal/adjustable ARCA plate design that may solve this issue... What's the size of the anti-rotation pin hole (diameter/depth)?

 

[Conqueror]

It does come with a reducer (they are also readily available from camera suppliers) but 1/4-20 threads are much weaker so my preference would be to use the native threads. I tried measuring the pin hole but the chamfering out the outside is making it hard to get a good reading with my calipers and I don't have a set of pin gauges handy. It is at least 4.5mm ID but I think it might be 5mm.

 

[SharpsNitro]

I’ve got the RRS on my Spotter 45. If al you are looking for is the pin diameter I can measure that for you.

 

[Conqueror]

Hensoldt finally got back to me again, the hole is sized for a 5mm pin, it's about 5.1-5.2mm.

 

[derek1ee]

Hensoldt finally got back to me again, the hole is sized for a 5mm pin, it's about 5.1-5.2mm.

Here you go:

0.4" hole for 3/8" screw (I'd probably tap it 3/8 instead and make a screw with reduced shoulder so it can be captured in the plate)
5mm post
14mm center-to-center
2" OAL

 

[Feniks Technologies]

I’m 99% sure the gray Ops with anti rotation fits it.

I’ll have one in a few days to try on my Spotter 45

 

[Feniks Technologies]

Also, normally I would say buy one or both and you’ll get most of your money back if you don’t like it.

However, price increases on $4-$5k+ optics have put them in price tiers that sometimes make moving them taking longer than it used to. So it may or may not still be a “if you don’t like, no loss” as you may be sitting on it longer than we used to.

 

[Conqueror]

Here you go:

0.4" hole for 3/8" screw (I'd probably tap it 3/8 instead and make a screw with reduced shoulder so it can be captured in the plate)
5mm post
14mm center-to-center
2" OAL

View attachment 7752757

You made it or this is a product somewhere?!

 

[derek1ee]

You made it or this is a product somewhere?!

I made it.

Mod: You're going to need to upgrade your account to a commercial account if you're going to list your products here.

 

[craigos]

i likely have a RRS one (they made specifically for the henny) i just took off my hensoldt 45 as i installed the badger ord slick kit. Let me know. its as new. I dont recall the pin but i know it was damn secure. I just need to find it

 

[craigos]

Yep it has the pin. found it

 

[shoobe01]

I made it.

You can get it here: https://dotechne.com/arca-rail-for-hensoldt-spotter-45-60/

I got one of his plates for my LRHS and beside being nearly-brilliantly designed, its very well made stuff.

 

[Conqueror]

I made it.

You can get it here: https://dotechne.com/arca-rail-for-hensoldt-spotter-45-60/

Did you end up deciding to thread it 3/8-16 so the quick-release screw (with smooth shank) can be captive? If so I will definitely order one.

 

[derek1ee]

Did you end up deciding to thread it 3/8-16 so the quick-release screw (with smooth shank) can be captive? If so I will definitely order one.

Yes that’s the plan.

 

[werth338]

I’m 99% sure the gray Ops with anti rotation fits it.

I’ll have one in a few days to try on my Spotter 45

Any update on Gray Ops fitting the Spotter 45?

 

[Feniks Technologies]

Any update on Gray Ops fitting the Spotter 45?

Yes, fits perfectly.

 

[werth338]

Great. Thanks.