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I have come to understand that there are systems for tripod quick release plates. Which are the most common systems out there?

I ask as I am considering buying a tripod and wondering about compatibility for switching cameras on it.

feetwet
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lijat
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2 Answers2

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Other than Arca-Swiss style plates, which are not standardized and can come in wide variety of sizes from various makers, the most common type of QD plate with standardized dimensions is probably the Manfrotto RC2 plate and receivers.

Arca-Swiss plates come in several widths and lengths. The most common width in the U.S. is about 1.5 inches (38.1 mm). In Europe they're almost all 35mm wide. In Asia both sizes can be found in large enough numbers to make compatibility more of an issue there.

Length isn't as critical, as the design is made to allow the plate to slide through the receiver. However, if one uses "safety bolts" on the ends of the bottom of the plate to prevent unintentional disconnection of receiver and plate, the shape of the receiver below the center channel may not allow certain shorter plates to be used with longer receivers. Alternately, very long plates will be able to slide out of a very short receiver before the safety bolts engage with the stops on the edge of the receiver.

As long as the width is the same and the beveled angles on the edge of the plate are close enough to the angles of the groove on the receiver, plates from one maker and receivers from another maker may be used together. The exact angles of the beveled edges that run along the sides of the long dimension do vary from one brand/maker to the next. Slight differences between the angles of the plate and the angles of a receiver can usually be ignored, but there are cases where a plate from one maker and a receiver from another maker don't line up well enough to be used together. When considering using an Arca-Swiss style plate from one maker and an Arca-Swiss style receiver from another maker, one should always test the compatibility in advance of "mission critical" usage.

Many Manfrotto products are offered with RC2 connectors, but there are also a plethora of third party heads, plates, receivers, and knock-offs of other Manfrotto products that use the same connector.

Manfrotto now offers the 200PL-PRO plate that is compatible both with RC2 receivers and most 38mm wide Arca-Swiss clamps.

Michael C
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  • What is a standard? Really Right Stuff drafted and distributed their specification (they use the word standard, but I'd argue it's more precisely a specification). If several companies adhere to the proprietary spec, at what point does it become a de facto standard? Or does it require some standardization body (ISO, ANSI, etc.) to adopt it / give it their imprimatur before it can be called a standard? (Honest question, I'm not arguing facetiously) – scottbb Sep 09 '18 at 00:03
  • @scottbb In the case of RRS, they were far from the first to use Arca-Swiss style plates and receivers. (Coincidentally enough, Arca-Swiss was.) The dimensions-angles they use are copied by some other folks in the U.S., but they're almost universally ignored everywhere else in the world, where the 35mm width is much more common.. – Michael C Sep 09 '18 at 02:45
  • P.S. The answer above makes no reference to a standard. It uses the word standardized instead. That choice was intentional. – Michael C Sep 09 '18 at 02:48
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    re: standard vs standardized: I don't see much distinction. Something that has been standardized is following a standard (whether written spec, or de facto practice, etc.). Loose or non-written standards largely imply poor or non-standardization. Standards and standardization go hand-in-hand. – scottbb Sep 09 '18 at 02:53
  • Something that has been standardized is following a standard. Arca-Swiss style pieces do not all follow a single spec. There are many variations of the exact dimensions and angles used by different makers. Thus, Arca-Swiss style QD plates and clamps/receivers/bases are neither made to comply with a standard nor standardized. I tend to consider standard to mean spelled out in a specification by an independent "standards" organization. If everyone follows suit from an entity other than such an organization, then that is what I would consider standardized. – Michael C Sep 09 '18 at 02:58
  • While I generally like this answer, there is a bit more info I wish it included. (1) The Arca-Swiss style plates is more about the width and bottom of the plate... not the top and (2) the system allows for plates of different lengths ... with can helpful with balance issues. Also (3) the question was more about the "system" (saddle and plate) rather than just plates alone. While I have noticed fractionally manufacturing tolerance differences, the same can be said for systems. I have Arca-Swiss plates and saddles from many different vendors and so far, they all work together. – Tim Campbell Sep 28 '20 at 15:29
  • @TimCampbell If all of your "Arca-Swiss" stuff was bought in the U.S. it is probably 38.1mm wide. If all of it was bought in Europe, it is most likely 35mm wide. In Asia both widths are common enough to make compatibility issues more frequent there. – Michael C Sep 29 '20 at 01:53
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The camera has a hole in the bottom that will be meant to take either a 1/4-20 UNC or 3/8-16 UNC threaded screw.

Most attachments for this will either come with both types of screws or will necessitate the use of an adapter if what the item comes with is not fit to your camera. This monopod, for example, has a reversible screw for both. Point is, these attachments are standardized so the tripod world is your oyster, so to speak.

The quick release plate will attach to your camera via one of these screws - so you can use the same plate across any of your cameras. Or, if you're lazy like me, you'll buy extra plates and just keep 'em on your bodies.

The plate will be designed to fit whatever head you're using. They could be custom designed for the head or could be something more standard, like the Arca-Swiss style plate.

That being said, I've never tried to mix brands and I have heard stories of one brand's arca-swiss plate not quite meshing well with another's arca-swiss head, even though those should be universal.

To summarize - because of the universality of the attachment screw, don't let this impact your tripod head decision. Buy that for the features you want and then worry about the attachment, whether you need an adapter or not.

If you want universality in the QR plates, then go for a head that supports Arca-Swiss style plates. Though again, be warned that that is no guarantee of a great meshing between the head and plate if you choose to mix brands.

OnBreak.
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