Just finishing up an overhaul on a RED 18-85mm RED zoom. The zoom focus and iris all needed some new grease after some heavy shooting. This lens is built quite well using nothing but aluminum alloys and high quality hardware. A cam driven zoom converter and a helix based focus assembly join to make quite a nice optical-mechanical tool. 
Great blog! Bookmarked. The inside guts are fascinating
nice post!
i cant share this link : https://matthewduclos.wordpress.com/2011/11/09/lens-guts-red-18-85mm
am i doing it wrong ?
Nice! How would you compare it optically to the Optimo DPs?
Just curious, any hints or even suspicions who might have made the thing, from what you saw inside it?