gopro 2 flat lent

edivad · 22nd February 2012, 21:47

Hello,
just received a new gopro 2 camera.
Now the problem is ... which flat lent ? I want to spend less than 100 euro ( so no golem gear and similar)
I would use it for wreck dive between 50 and 80 mt (in the highest definition) ... There is something on the market? Vignetting is not a big problem for me

thank you

davide

BillGraham · 23rd February 2012, 11:58

Check with Sartek.

Sartek Industries Home Page

Carl probably has a flat port housing for it. The one he did for the original Hero HD is listed for $100.

fl001203 · 23rd February 2012, 14:17

Hi davide,

Two links where you will find your happiness

Lentille Oculus pour caméra GoPro HD

BlurFix Gopro

GKAM · 23rd February 2012, 17:16

Quote: (Originally Posted by edivad)

Hello,
just received a new gopro 2 camera.
Now the problem is ... which flat lent ? I want to spend less than 100 euro ( so no golem gear and similar)
I would use it for wreck dive between 50 and 80 mt (in the highest definition) ... There is something on the market? Vignetting is not a big problem for me

thank you

davide

You may also wish to try a shop from Germany GOPRO HD Kameras

/GKAM

edivad · 23rd February 2012, 22:59

Thank you very much.
At the end I chose the oculus lent because it is sold in europe (no overseas shipping) and seems to be more resistent to the pressure. We will see...

the uk-germany aluminium housing is wonderful...but too expensive for me...

davide

Packhorse · 24th February 2012, 06:26

Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?

fl001203 · 24th February 2012, 08:33

Quote: (Originally Posted by Packhorse)

Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?

The gopro is mainly used in ground sports. You have to buy a flat lens to remove the fuzzy due to curved lens. The optics of the gopro can shoot wide angle.

betti154 · 29th February 2012, 05:43

Quote: (Originally Posted by Packhorse)

Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?

It's to support the internal fisheye optics of the lens in air.

Underwater it's in the wrong position and/or too small to all the gorpo to focus on the virtual image the dome projects. You need a flat lens to fix this, you you get serious vignetting with most of them and on medium fov the image is ~30% narrower due to refraction through the flat interface.

A larger dome, positioned more forward would do the trick I suspect and enable fisheye optics underwater.

22nd February 2012, 21:47	#1 (permalink)
edivad RBW Member Join Date: Jul 2010 Location: genova Posts: 66	gopro 2 flat lent Hello, just received a new gopro 2 camera. Now the problem is ... which flat lent ? I want to spend less than 100 euro ( so no golem gear and similar) I would use it for wreck dive between 50 and 80 mt (in the highest definition) ... There is something on the market? Vignetting is not a big problem for me thank you davide
(Offline)

23rd February 2012, 11:58	#2 (permalink)
BillGraham RBW Member Join Date: Aug 2006 Location: Long Island, New York Posts: 140	Re: gopro 2 flat lent Check with Sartek. Sartek Industries Home Page Carl probably has a flat port housing for it. The one he did for the original Hero HD is listed for $100.
(Offline)

23rd February 2012, 14:17	#3 (permalink)
fl001203 RBW Member MEG Vision Join Date: Nov 2006 Location: France Posts: 87	Re: gopro 2 flat lent Hi davide, Two links where you will find your happiness Lentille Oculus pour caméra GoPro HD BlurFix Gopro
(Offline)

23rd February 2012, 17:16	#4 (permalink)
GKAM digital nomad Hyperion pSCR IDA71, HomeBuilts, Ray, RGU/FM Join Date: May 2005 Location: GR from ATH, living mostly in MUC Posts: 365	Re: gopro 2 flat lent Quote: (Originally Posted by edivad) Hello, just received a new gopro 2 camera. Now the problem is ... which flat lent ? I want to spend less than 100 euro ( so no golem gear and similar) I would use it for wreck dive between 50 and 80 mt (in the highest definition) ... There is something on the market? Vignetting is not a big problem for me thank you davide You may also wish to try a shop from Germany GOPRO HD Kameras /GKAM
(Offline)

23rd February 2012, 22:59	#5 (permalink)
edivad RBW Member Join Date: Jul 2010 Location: genova Posts: 66	Re: gopro 2 flat lent Thank you very much. At the end I chose the oculus lent because it is sold in europe (no overseas shipping) and seems to be more resistent to the pressure. We will see... the uk-germany aluminium housing is wonderful...but too expensive for me... davide
(Offline)

24th February 2012, 06:26	#6 (permalink)
Packhorse RBW Member rEvoIII mini mCCR RG-UMF,IDA 71 Join Date: Jan 2008 Location: Auckland New Zealand Posts: 1,352	Re: gopro 2 flat lent Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?
(Offline)

24th February 2012, 08:33	#7 (permalink)
fl001203 RBW Member MEG Vision Join Date: Nov 2006 Location: France Posts: 87	Re: gopro 2 flat lent Quote: (Originally Posted by Packhorse) Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens? The gopro is mainly used in ground sports. You have to buy a flat lens to remove the fuzzy due to curved lens. The optics of the gopro can shoot wide angle.
(Offline)

29th February 2012, 05:43	#8 (permalink)
betti154 Damien Siviero Waiting for Pathfinder :( Inspiration, Kiss Join Date: Sep 2006 Location: Sydney Posts: 276	Quote: (Originally Posted by Packhorse) Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens? It's to support the internal fisheye optics of the lens in air. Underwater it's in the wrong position and/or too small to all the gorpo to focus on the virtual image the dome projects. You need a flat lens to fix this, you you get serious vignetting with most of them and on medium fov the image is ~30% narrower due to refraction through the flat interface. A larger dome, positioned more forward would do the trick I suspect and enable fisheye optics underwater.
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode