With the wide angle lens of the GoPro, the mirror would have to be just about as big as the camera.  I designed and built a very aerodynamic cowling to mount the GoPro in and it works very well.

Here is the footage from its last flight (with a different paint job). Feature Presentations GoPro camera looking aft: https://vimeo.com/110331442

Here is the shot of Feature Presentations Sony camera looking out from nose cone: https://vimeo.com/110331443

The video is nice. The link to the image you note in your first response is bustified. Would you please re-post?

Are you mounting the cowl to a GoPro camera body, or to a housing (to avail yourself of various mounting options? Which GoPro are you using? I have an earlier HD Hero.

I do see by the way (from a post on a GoPro forum), that for Hero 3 / 3+ generation cameras, Snake River Prototyping offers an attachment that allows use of screw in 55mm filters. I note also that there are some "spy lenses" that come in 55mm filter format ...

I note also that with some newer GoPro cameras, one can configure field of view from ultra-wide to not-so-much. Yet to play with this ...

Thx!

Lets try this again.  Here is a shot of the cowlings and the mold they were made from.

Here is a close up of the inside mounting of the camera.

and a shot with the camera mounted inside. The Camera Housing was not needed and only increased the size.

Doug

This image may give you a better idea how aerodynamic the cowling is.

In case it wasn't obvious, the camera is loaded from inside the body tube.  Here is a shot of the cowling before it was installed on the body tube.

We now have editing capabilities but I do not see a method to delete posts that are not longer applicable.

Doug

Very nice Doug. Thank you for all the photos!

I recently was introduced to a ~$100 camera that looks like a periscope. It's small, high video rate, remotely managed via cell phone, and looks like it will mount into a ~1" hole in an airframe. Not as aerodynamic as your shroud, but low profile, round and smooth. I'll post photos / links shortly

The HTC RE camera looks like an interesting device ....

http://www.htc.com/us/re/re-camera/

I prefer the Sony Action Cameras for my on board rocket camera.  I stopped using the GoPros some time ago.  The Sony's are about the same size as this one (sticking out of the rocket) but the older models (with the same spec) are about half the price.  They easily fit into a 54mm rocket with just the lens sticking out of the body.

Doug