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The Arca-style plate: a copied dovetail, not a standard

Arca-style plates slide into a clamp on a tripod head by a dovetail profile. The shape was copied from the Swiss maker Arca-Swiss by many brands, without a shared published document.

What the profile is

A dovetail plate that clamps into a head. The name comes from Arca-Swiss, and the profile is widely copied.

What it does not promise

Without a document, there is no dimension a plate can be held to. Fit is a matter of practice.

Where it turns up

The NEEWER GM-MP2 macro rail uses double Arca-type plates, and the NEEWER X11 teleprompter has an Arca-type holder.

How to check before buying

Look for the profile named on both the plate and the clamp, and prefer clamps with a safety stop.

What people ask before they commit

Will any Arca-style plate fit any Arca-style clamp?

Usually, but not always: with no published standard, widths and depths vary slightly. A safety stop or screw helps.

Why use Arca-style?

It is the most widely copied profile, so plates, clamps and L-brackets from different brands generally work together.

Is there an official specification?

No. Arca-Swiss did not publish a standard others are certified against.

Last reviewed November 2, 2026