Nice video Nicholas! I'd lean towards "no" on the rental. Locally maybe but not otherwise.
Here is the video finally. http://vimeo.com/81908440
In the video I have the motor running with the top on and then I pull the top off so you can hear how loud it is without the top. Then I run it with the top on. My camera was less than a foot away from this thing. It's really hard to show how this thing really sounds in real life. It's funny the only thing I can really compare the volume of the naked motor to is the motor on my vintage Rain Lamp which uses a small pool pump. And if you don't know the wonders of a Rain Lamp, you poor poor thing.
The motor the blimp came with would definitely need to be cut out in post if used outside a blimp but covered inside the blimp, its more like a low hum and I don't think it would be picked up at all with a directional mic but would be picked up by a lav although probably wouldn't be too noticeable with good sound design. I also add a low level hum to my films anyway.
With the current motor, it vibrates more on a tripod sitting on carpet and the hum is louder. But I think if I can get my camera in this with the Tobin or MST motors it will be silent. The Tobin motor is definitely quieter than the motor this thing came with. It's just a matter of if it will fit.
Edited by T Sanders, 14 December 2013 - 10:12 PM.