Haven’t used this but it looks pretty solid. At $135 with the universal lens gear ring at $29 bucks, it’s the most affordable follow focus I’ve seen. Wow. I’m not sure I love the design of using little screws to rest on the lens itself, so let me know if you use this and if you like it.

D|Focus Follow Focus System

How to (cheaply) protect your touchscreen device against rain/snow from Shawn Chittle on Vimeo.
Rain/snow will ruin your touchscreen device in no time. How to protect it without spending a fortune on a bulky waterproof case? We share a great tip.