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Arca Swiss Plate for Tachihara 8x10

grainfall

Member
Allowing Ads
Joined
Feb 15, 2026
Messages
26
Location
Vancouver, WA
Format
Large Format
Hi All - I'm having trouble sourcing an Arca Swiss quick-release plate that would work for my Tachihara 8x10.

I'm hoping to learn about what's worked best for large format shooters here since the only option I keep running into is the 150mm plate on B&H and that's unfortunately too short for the nuts to span the necessary distance to thread.

Does such a plate exist?

Any input would be incredibly appreciated!
 

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I picked up a third party150mm plate from eBay, it has two mounting bolts. I have a Nagaoka 8x10, the base plate is similar to Tachi's. I rotated the base on my Nag 90 degrees so the mounting holes run front to back.
 
maybe this?

Surefoot NX4 - 7.0" | Jobu Design

Surefoot NX4This is a bit of an old school style lensplate with serious length (7" long) that fits some serious older glass like 600mm F4's from the 90's to early 2000's. If your lens has no image stabilization, well maybe this is the plate you need. Often these old lenses were massive 15lb...
www.jobu-design.com
 
Rick A said:
I picked up a third party150mm plate from eBay, it has two mounting bolts. I have a Nagaoka 8x10, the base plate is similar to Tachi's. I rotated the base on my Nag 90 degrees so the mounting holes run front to back.
Click to expand...

I ended up trying the 150mm Arca Swiss plate and the separation of the mounting holes on the base are unfortunately too far apart for both bolts to threaded.

I ordered some 1/4" to 3/8" inserts and maybe I can utilize the large 3/8" hole in the center as a second attachment point.
 

Oh this is super interesting, thank you for sharing these! I feel like I did a lot of research on this and these never popped up. I'm unfamiliar with Agena Astro but looks to be an awesome resource - appreciate the heads up!
 

Thanks Tom!

That's great to hear that that setup works with a triple extension set up since that's what the Tachihara is. I wasn't familiar with anti-twist plates but that seems like it would solve just about all my problems. Really appreciate the insight, thanks again!
 
If you end up still stuck, the RRS "MPR___" are multi purpose rails, and there have been quite a few different lengths over the years, so easy to find used.
 

Check the spacing on a 200mm plate.
 
Thanks very much for the continued ideas, I'll certainly keep them on hand.

On the advice of a friend of mine I contacted Hejnar Photo Store who make their own products in-house and are apparently incredibly high quality. They responded to my email in about 5 minutes detailing exactly what I'd need to make for a perfect set up.

Hasn't arrived in the mail yet but I'm confident we can consider this one as solved!
 

I’ve got several things from Hejnar, always great quality.
 
Shaps said:
I’ve got several things from Hejnar, always great quality.
Click to expand...

I'm incredibly impressed. I was told to expect something nice but the quality of the part I ordered far exceeded my expectations. He's got a customer in me for as long as he's making parts.
 
grainfall said:
I'm incredibly impressed. I was told to expect something nice but the quality of the part I ordered far exceeded my expectations. He's got a customer in me for as long as he's making parts.
Click to expand...

Hejnar makes superb quality stuff. Bought multiple times from him and always impressed
 
I wish I had known about Hejnar. I ponied up for the Kesler Qwik-stand XL for my 8x10 camera.
 
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