GoPro underwater focus fix
The GoPro HD Hero video camera has created a huge buzz this year. It is a small super wide angle video camera with a rugged underwater housing and several mountings for different applications: you can attach it on your car, boat, helmet, bike, wrist, fishing rod, guitar, model helicopter, plane, skateboard… Basically anywhere! It’s small and handy and films with a maximum 170 degree angle (720p or 920p HD). You can also switch to a narrower view of 127 degrees and get full 1080p HD. Well, read all about the specs elsewhere, this blog is not about that.
There’s namely one big disadvantage with the GoPro HD Hero. The underwater picture is blurry and out of focus. As they say on the GoPro official webpage: Please note that due to the curved lens of the waterproof housing for the HD HERO camera and standard def Wide HERO cameras, you will notice a slight loss of sharpness with underwater images.
I can tell you this loss of sharpness is not ”slight”. It’s a matter of being able to use the material or not.
Luckily, there’s a way of getting around this problem. Either you can order a special underwater housing from a second party manufacturer, or you can do as I did, modify your housing yourself. It’s easy, fast and cheap. Here we go, gopro:
You need:
- GoPro underwater housing
- Philips Avent baby bottle (probably some other brands do as well)
- Hobby knife
- Saw
- Sand paper
- UV-filter ø 58 mm
- Black permanent marker
- Epoxy glue
See the instructions on the following slide show:
- 1. It’s the white ring you need
- 2. The white ring on the baby bottle fits almost perfectly around the GoPro lense.
- 3. Use the knife to make a perfect fit.
- 4. Cut the white ring in two.
- 5. Use the sand paper to finish the edges.
- 6. Ready for the UV-filter.
- 7. Use a black marker to color the inside of the ring to minimize reflections.
- 8. Remove the glass from the UV-filter.
- 9. Blend some epoxy and glue the ring around the GoPro lens.
- 10. Make sure it’s all around it and no water can come in!
- 11. Clean the UV-lens thoroughly and glue it on the ring. Waterproof again!
- 12. Finally, glue the ring of the UV filter on top of the glass.
- 13. Done!
- 14. View from the back
This modified housing works great on the narrower 127 degree angle. The superwide angle captures some of the ring in the corners. However, I prefer the narrower view and the full HD when shooting underwater.
The result? See for yourself:


























































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