DSLR Slider


At the NAB Show, Libec shows us the ALLEX system. A line of products or complete kit designed to work seamlessly together so that you don't have to struggle with what tripod works with which video head and how that all comes together with a video slider.

The ALLEX H Fluid Video Head uses a drop in style plate, something many shoulder rig shooters have a preference over instead of the sliding systems. The head combines both a 75mm bowl + a standard 3/8" flat base mount. When used on the Libec ALLEX T tripod, the bowl allows you easily level your system, and the flat base will thread easily to the ALLEX Slider.


The ALLEX S is a 30" Slider using 8 bearings surrounding the rail. The slider features a friction knob for drag, brake knob, along with adjustable legs / feet. Beneath the slider is a similar 75mm bowl to fit directly to the ALLEX T Tripod, but also offers a 3/8" thread flat base mount.


Libec ALLEX Tripod Slider Fluid Head Keiko

The ALLEX T Tripod is very sturdy two-stage all aluminum, 75mm bowl mount, with mid level spreader, and articulating feet. The Tripod weighs approximately 5.5 lbs.

More information can be found at the ALLEX product page at the LibecSales.com website (here).

ALLEX Video Contest

NAB 2014 Coverage Sponsors

Camera Motion Research Came_80x80banner Varavon fvlighting


Here's a look at two new Edelkrone Products to compliment SliderPlus+(v2) video sliders. The first new product demonstrates Target Module which can track a subject as the camera moves across the slider.

Target Control SliderPLus Edelkrone
Edelkrone Target Module

Next is the Wizard Module that adds motion control to the SliderPlus+(v2) with the ability to record and replay your movements.

Edelkrone Sliderplus Wizard module Motion Control
Edelkrone Wizard Module

For more information on these Edelkrone products, check out the website at https://Edelkrone.com


A short while back I shared a simple way of wiring up a motorized slider to move back and forth continuously (original article found here). No fancy software or programming, just a basic electro-mechanical system. There are many benefits to having this 'auto-looping' feature. One benefit is that a 'B' camera can continuously slide back and forth without the need for an additional operator, and another benefit is for TimeLapse projects that can continue to capture footage without stopping at the end of a rail.

Throw a few of these around an event and you'll have some great Dynamic Camera Movement footage to cut to without hiring additional crew.

I decided to update the project because some people couldn't quite figure out the circuit. With these new instructions using a numbered socket block, anyone should be able to follow this build, even without understanding the circuit. Hopefully this clears things up for some of you out there, and for those who may have been initially intimidated by the wiring.

Looping-circuit-auto-reverse-polarity_01 copy
Color coded wiring diagram - Click for larger view

I would set this up in a test scenario (loose parts on a table), and once you have it figured out, you can start attaching things to your actual motorized slider. Remember that this is all based on a very specific DPDT Relay + Socket Base Kit (found here).

Step by step Check List for you to follow on building an 'Auto Reverse Polarity Circuit'.
#1 Wire connects to 'NC' on Switch A
#2 Wire connects to one side of the Motor
#2 Wire (also) LOOPS back to Terminal #3
#3 Wire LOOPS back to Terminal #2
#4 Wire LOOPS back to Terminal #7
#5 Wire connects to 'NC' of Switch B
#5 Wire (also) connects to NEGATIVE on Battery
#6 Wire connects to POSITIVE on Battery
#6 Wire (also) connects to 'NO' on Switch A
#7 Wire LOOPS back to Terminal #4
#7 Wire connects to 'C' on Switch A
#7 Wire connects to one side of the Motor
#8 Wire connects to 'C' on Switch B

Remember to start this build by having parts loose on a table. You should know exactly what side your switches should be (left/right) so that the Slider is bouncing back and forth properly. If it's still not working correctly, try swapping the wires on your motor. If you have it swapped it will turn in the opposite direction. This circuit is designed specifically for the motor to turn a certain way.

Hopefully this has been helpful for those struggling with this project...

How It Works:
Two 3 Pin NO+NC Momentary Micro Switches (as found here) at each end reverse the polarity of the motor each time they are triggered.

DIY Slider micro switch 3 pin NO NC
Example of 3 pin NC/NO Momentary Micro Switch

A 12V DPDT Relay (as found here) is either 'Always ON' until the slider reaches the opposite switch which drops power to the relay.

12V DPDT Relay DIY Slider Motion Control
12V DPDT Relay with Socket Base

In one direction, the relay is technically 'STUCK ON' by way of a tricky little feedback loop in the circuit. To turn the entire slider on or off, i'm just using the switch from the battery. In this example, i'm not using a speed controller, but one can easily be added.

Additional Parts Suggested for this Build.

5.5 2.5 DC Male Plug Tip
DC Tip 2.5 5.5
12V Super battery

1 Comment

Holiday Promotions!

Into The Atmosphere from Michael Shainblum on Vimeo.

Dynamic Perception has put together a few new bundles based on popular demand. Economical Stage Zero ready-to-run package with installed quick change plate and swappable motor at a discount.


Customers can Save $130 with coupon code "Sub Zero" on the Stage Zero 6-Foot Bundle w/Quick Change Motor System (installed)

1. https://dynamicperception.com/products/stage-zero-6-foot-bundle-wquick-change-motor-system-installed

Also packaged together is a super time-lapse and real-time video bundle. This is the cat's meow, the all inclusive professional moco bundle ready to launch you into the world of time-lapse and video motorized motion. It's the uber package at a substantial savings!

2. The uber Bundle: The biggest and most bad ass package for the Stage Zero: https://dynamicperception.com/products/pro-stage-zero-6-foot-time-lapse-and-video-motion-control-bundle


If you love building and tinkering, here's a look at another fun little project idea from ServoCity.com. They've added a new low friction channel slider that has very low tolerance, can accept a decent load, and that slides over their lightweight aluminum channels. In this video they have assembled a drive system that pulls the carrier through the channel, to work as a video slider.

These aluminum channels can be purchased in various lengths if you're looking for longer or shorter runs, and the motors can be swapped out for faster or slower RPMs depending on your project. The overall design allows these motors to pull quite a bit of weight even vertically, but if you're looking to carry heavier camera systems, just make sure to look into the channel slider that wraps around all four sides (here).


Now if you're looking to do some tinkering of your own, I highly suggest taking a look at the dozens of videos showing you step-by-step on how to build these projects at the Servo City YouTube Channel.

For more information about the Slider Kit A, take a look at their Channel Slider Kit product pages which shows examples and a list of parts required to assemble.

ServoCity YouTube Channel
ServoCity.com Precision Building Systems


Good times! The brand new lightweight and portable Cinevate Duzi Video Slider just dropped in yesterday. It is an impressive little product, and Cinevate's most affordable slider to date. Obviously i'll have my own reasons about working with such a slider, but while I have her around, are there any questions some of you might have? Let me know in the comments.

Cinevate Duzi Slider Cheesycam 2

For technical specs, you can check out the Duzi Product Page (found here).


Here's a closer look at the Dynamic Perception Stage One Motorized Slider along with the new AT2 Joystick for real time motion control. The standard bundle can be purchased non-motorized ready to use manually for any of your video productions - silent, smooth, and breaks down as small as 20" for travel.

If you feel the standard bundle isn't long enough, expanding to 6,8, or even 10 feet is easy with their seamless rail extension kits available in Aluminum or Carbon Fiber. Each extension kit includes a mid-span support, so you can provide proper support no matter how long your track becomes. If you're too lazy to add multiple sections of 20" rails together, they offer longer sections up to 60" each (obviously not as travel friendly).
Dynamic Perception Joystick Cheesycam Review Stage One Motorized SliderDynamic Perception Carbon Fiber Rail Kit Extension
Stage One Base Slider Bundle and Carbon Fiber Rail Extensions

When you're ready to take it to the next level, you can always upgrade along the way, or just start out with one of the Motorized Slider Bundles that include a highly programmable controller that can be expanded to control more than one motor for more advanced motion such as a pan/tilt head.
AT2 Controller Dynamic Perception Joystick Cheesycam Review Stage One Motorized Slider Bundle
Stage One Complete Motorized Slider Bundle

Like many motorized slider systems, when using the Stage One motion control during a live video shoot, noise will be apparent. The camera sits directly on a stage with the motor very close to the camera. Depending on the speed and motor you choose, the noise may be picked up even if your microphone is a small distance from the slider. Still you can always switch to manual mode by removing the drive belt and simply operating by hand which is very smooth and very silent.

When you need real time motion control operation, the new AT2 Joystick controller is the optional accessory to get. The AT2 Joystick also offers a cruise mode for hands-free operation. The AT2 easily lets you control direction and speed in real time.

AT2 Controller Dynamic Perception Joystick Cheesycam Review Stage One Motorized Sliderat2-3
AT2 Joystick Real Time Motion Controller

Here's another generous Product Giveaway from Konova. This Video Slider Jib was a product they announced during NAB 2013. The jib breaks down for travel in it's own case, and can be used with or without a Konova Slider as part of the frame. This product Giveaway only includes the Jib (to be used if you already have a slider). For more details about this Konova Sponsored product Giveaway (click here).

KONOVA SLIDER JIB & SMART HEAD Making Promotion from soulstory on Vimeo.

The Konova Slider Jib is available in various lengths and bundles starting at around $500 US Dollars. It can also be expanded to use many of Konova's motion control systems. If you're interested about finding out more about the product itself, they have additional videos on the following ebay product pages for the Konova Slider Jib (click here).

Konova Slider Jiib
find-price-button Konova Slider Jib

For other great Giveaways and Promotions going on right now such as a Zoom H1 portable recorder + Accessory Pack, the Cinevate Duzi Video Slider, and more check out the recent Swivex newsletter (found here).


Here's a look at the Varavon Slider Crank Handle Upgrade Kit. The idea for a crank pulley is to keep your shaky hands away from the camera, but whether it produces smoother results are based on the experience of the operator. A fully motorized slider will always yield the most consistent results, but in times where battery power or noise is an issue, the Crank Handle kit is another option.

The Varavon Crank Handle Kit comes with two end pieces that can fit most sliders on the market so long as you have a 1/4" or 3/8" mounting point on either side. A metal plate sits under your tripod head on the carrier, and a pulley belt can be cut to size. The handle length can be adjusted for longer or shorter crank rotations. The Varavon Crank Handle Kit for Sliders are available via eBay (click here).

Varavon Slider Crank Handle Kit Upgrade
find-price-button Varavon Crank Handle Kit for Sliders