Right angle lens - Northern Colorado Rocketry

This topic has 10 replies, 2 voices, and was last updated 10 years, 11 months ago by Doug Gerrard.

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January 22, 2015 at 2:38 pm #56912
Doug Gerrard
Participant
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.
January 22, 2015 at 3:01 pm #56913
Doug Gerrard
Participant
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
January 23, 2015 at 10:07 pm #56914
Bob Wood
Participant
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!
January 29, 2015 at 2:56 pm #56915
Doug Gerrard
Participant
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
January 29, 2015 at 5:03 pm #56916
Doug Gerrard
Participant
This image may give you a better idea how aerodynamic the cowling is.
January 29, 2015 at 5:04 pm #56917
Doug Gerrard
Participant
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.
January 29, 2015 at 5:31 pm #56918
Doug Gerrard
Participant
We now have editing capabilities but I do not see a method to delete posts that are not longer applicable.

Doug
February 4, 2015 at 1:17 am #56919
Bob Wood
Participant
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
February 11, 2015 at 9:52 pm #56920
Bob Wood
Participant
The HTC RE camera looks like an interesting device ….

http://www.htc.com/us/re/re-camera/
February 12, 2015 at 4:28 am #41770
Bob Wood
Participant
Any design ideas for how to best mount a GoPro in an avy bay, pointing directly out through the airframe wall, with a mirror or mirrored prism to direct the field of view earthward?

I am really looking for a lens (mirrored prism) without some monstrous (drag) profile, or a drain on my wallet. We have all seen videos of cameras used in such a way. I can’t find a reference design.

All leads appreciated …
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