About: Paul Illsley
GoPro Hero2 Frame Quadrat
1 X 1 metre quadrat made from 3/4 inch CPVC tubing
Dimentions: 1.04 m X 1.04 m X 0.79 m tall
GoPro Hero2 camera in GoPro underwater housing with camera tripod mount attached
A GoPro LCD BacPac is a very useful addition to consider
Parts list:
GoPro Hero2 camera, underwater housing and tripod mount
24 cm X 4 cm X 0.5 cm thick nylon camera mounting plate
90 degree elbows (8)
T adaptors (8)
8 cm top tubes (8)
49 cm base tubes (8)
85 cm leg tubes (100 cm for underwater use) (4)
1/4 nylon 2 inch bolts and nuts (4)
1/4 nylon 1.5 inch bolt and nut (1)
1/4 nylon washers (10)
140 mm nylon cable ties (lots of them)
24 cm X 4 cm X 0.5 cm thick nylon camera mounting plate (1/4 inch holes)
Camera mounted on the top platform (viewed from below)
Method of securing each section of the frame (nylon cable ties through 1/4 inch drilled holes)
(recommended if you plan on using the frame in the field or underwater)
You will need to file off the sharp edges of the ties after you have snipped them to length (a bit of tape also helps)
You could use 1/4 nylon nuts and bolts if you wish
Image recorded with the GoPro2 camera mounted on the quadrat frame
The same image after lens distortion has been corrected
Ground resolution in the study area is 0.43 mm / pixel
Distortion correction tool in Adobe Camera Raw (Photoshop) software
(settings shown here are for a Hero10 Black model)