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Vocas Sliding Base Plate System.

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Let’s face it, camera base plates are not really very exciting things. But they are very necessary additions to most peoples kit, especially for any of the full size super 35mm digital cinema cameras. From Red’s to F55’s to FS7 etc, they will almost always need some form of base plate at some point.

So what’s different about the Vocas sliding system?

A complete Vocas sliding base plate system comprises two main parts. The first bit attaches to the camera and that will be either a generic flat camera mounting adapter plate or a custom camera mounting plate for cameras that don’t have flat bases, for example the FS7 or Venice where the adapter follows the curve or shape of the bottom of the camera.

DSC_0315 Vocas Sliding Base Plate System.
The Vocas Sliding system adapter for Sony’s PXW-FS7 cameras. Note this even has the very small screws normally used by the shoulder pad to help keep it very stable.
DSC_0328 Vocas Sliding Base Plate System.
On the left is a 15mm rod VCT type shoulder mount. Middle is the FS7 camera adapter plate and right is a generic flat camera adapter plate.

The second part is a shoulder mount, shoulder pad or tripod plate or generic flat mounting plate that the camera adapter smoothly and securely slides onto.

20180514_092732 Vocas Sliding Base Plate System.
Vocas Sliding base plate system on a Sony Venice. 19mm shoulder/VCT plate and dedicated Venice base adapter.
DSC_0329 Vocas Sliding Base Plate System.
The VCT/15mm rod shoulder plate with the FS7 camera plate attached. Note the allen key and mounting screws stored within the base plate.

One of the first benefits of this system is that you can easily alter the position of the camera relative to the base plate or shoulder pad. This makes balancing the camera on your shoulder or on a tripod much easier. A large red level locks the two sliding parts securely in place and there is a safety release catch that must be pressed if you wish to separate the mounting plate from the base plate, so they can’t come apart by accident. However if you need to move the camera forwards or backwards relative to the mounting plate all you need to do is release the large red locking lever.

DSC_0334 Vocas Sliding Base Plate System.
PMW-F5 on the same VCT/15mm rod base plate as shown with the FS7 adapter and Sony Venice above.

Another benefit of the system is that it is very quick to reconfigure if you need to. For example many cinematography accessories are mounted using 19mm rails rather than the lightweight 15mm rails often used with ENG or smaller rigs. Perhaps you have been shooting handheld where a lightweight 15mm setup works better. Using the Vocas sliding system you can have a light weight base plate with a comfortable shoulder pad, 15mm front and rear rails that will clip in and out of a VCT style quick release tripod plate attached to the camera for your handheld shots. Then when you need to go to a bigger lens perhaps and 19mm rods, you simply slide off the 15mm base plate and slide on the Vocas 19mm plate. Quickly transforming the camera into a heavy duty rig that will then attach to an Arri style tripod plate. Need to keep the 19mm rods but now need a shoulder pad? Well that’s easy too as there is a matching shoulder pad for the 19mm base plate. It’s all very quick and very easy.

DSC_0335 Vocas Sliding Base Plate System.
My PMW-F5 now on a 19mm Arri compatible base plate. It took just a few seconds to swap from the 15mm plate to the 19mm plate. No tools needed.

It also means that if you have multiple cameras all you is a mounting plate on each of your cameras then you can use the same base plate on all your cameras just by sliding it on and off as needed, or swap between lot’s of different types of plates depending on your needs.

If you don’t need a base plate with rods etc and just need a quick way to mount your camera to a tripod then there is also a basic tripod adapter that the camera can be slid directly onto. This gives you a really secure, quick release, low profile mounting system that is free from the wobble that often plagues other quick release mounts. It’s ideal for crash cams, car mounts and car rigs. Or for those situations where you just need something quick and compact. This would also help keep the weight down for use on gimbals or perhaps a stedicam. Need to go back to a shoulder mount or full tripod rig with rods, just slide the camera off the tripod plate and slide it on to your preferred 15mm or 19mm shoulder plate.

DSC_0332 Vocas Sliding Base Plate System.
Top is the 15mm/VCT type base plate. In the middle is the generic tripod platethat can be used as a low profile, adjustable quick release mount on gimbals, tripods, stedicam etc.

Nice touches on the VCT type base plates are the adjustable height rod mounts and also an adjustable tensioner for the rear mounting spigot. Normally on a VCT base plate the rear spigot doesn’t do a great deal to add stability to the system, it just helps to loosely locate the base plate. However Vocas have added the ability to put some tension on to the rear spigot to help pull the camera down onto the VCT plate. This can greatly decrease, if not eliminate the wobble and flex that is all to common with these quick release plates.

DSC_0336 Vocas Sliding Base Plate System.
The tensioner/clamp for the rear pin on a VCT tripod plate.
DSC_0337 Vocas Sliding Base Plate System.
Adjustable height rod mount at the front. The large red lever at the left side is used to allow the camera to be slid forwards and backwards to adjust the position/balance. A small red push button safety catch and the pin it operates can be see on the upper right of the base plate.

Another really nice touch is that the attachment screws for the mounting plate and an allen key for adjusting the height of the rod mounts can be stored inside the base plate so you should never loose them.

Any downsides? Well yes, any 2 part system like this is going to be a little more complex with more parts and a bit more metal than a basic fixed mounting plate, so the sliding base plate ends up a touch heavier than the equivalent fixed position base plate. It’s not a big difference, but it does add a bit of weight. However in most cases I believe it’s worth it. Especially if you are swapping between 15mm and 19mm systems frequently. Being able to quickly and easily re-balance the camera when handheld and you change lenses is very nice.

DSC_0327 Vocas Sliding Base Plate System.
The 19mm Arri compatible base plate, in this case with the FS7 adapter on it.

If you have more than one camera it makes it easier to share different mounting systems between them. So while the initial cost may be a bit more, in the long run you only ever need to add new mounting adapters to keep using all the different base plates you have with extra cameras or new cameras.

DSC_0320 Vocas Sliding Base Plate System.
Arri compatible shoulder pad. This would attach under the 19mm base plate instead of an Arri dovetail.

As always with Vocas products the quality of the engineering is first class. The parts fit together beautifully. Only high quality materials are used and the finish is very nice. So if you are looking for a really nice base plate for your camera – or cameras – do take a look at the Vocas sliding system. It’s really very well thought out and something that will last for a very long time.

Disclosure: I have a good relationship with the guys at Vocas. I had been shown this system at various trade shows and it looked interesting, so I approached Vocas for the loan of a review system so I could write this article.


Vocas Sliding Base Plate System. was first posted on February 25, 2019 at 1:56 pm.
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