I recently received two packages to test out from Senna a video equipment company based out of Croatia (website found here). One case includes their 'All Recall Focus' which is a Wireless Follow Focus system, and the second case carries their 'Five Second Head' which is a Motorized Pan / Tilt Head. Take a look at the demo video below showcasing these products at work.
The All Recall Wireless Follow Focus System has programmable functions to store and return to specific focus points very quickly. You can control the ramp speed in which it changes from one focus point to the next if you want a slower more dramatic focus pull. I've tried a few different Wireless Follow Focus systems, and in the past i've had mixed results to the point where I don't use them. So far, this system has been pretty reliable right out of the box. I've been able to test the recall function repeatedly and the servos have so far been extremely accurate switching back to the stored focus points with a simple touch a button.
Senna All Recall Wireless Follow Focus on BlackMagic Design Cinema Camera
During initial setup, you can calibrate the focus range of your lens. The single hand held controller has the ability to operate two servos (zoom and focus) if you're operating a zoom lens remotely. The Transmitter and Receiver operate with built in rechargeable Lithium ion batteries or can be powered through an external battery pack or AC wall adapter. One neat feature is the ability to enable Night Mode which allows you to see an illuminated marking disc when your focus puller is working in dim lighting - not to mention it also looks pretty cool.
The Five Second Head (i'm guessing carries it's name from it's fast installation time) is a motorized Pan Tilt head that can be controlled through a tethered remote, or optional wireless remote. I'm a big fan of the unique movements you can create with Motorized Pan / Tilt heads. The Five Second Head also has the ability to store repeatable positions. Apparently this head can also be used for TimeLapse which I still have not figured out yet, but i'm assuming it will require some additional equipment.
The instructions were very clear to get each of these products setup, and so far i've had to hiccups. I'm hoping to put these products through more testing with some of our future projects. Hopefully I will also work on an introduction to setting up each of the equipment and what's included in the box. Senna has a number of products available from various website retailers, but more information about their products can also be found at http:/www.senna.hr