Atelier dddo > Photo > Nikon Coolpix 4500,885 > Details of Angle of Fisheye(2004.02.15)
[Japanese]
2004.02.14, Details of angle of Nikon
Coolpix 4500, 885 and
Fisheye converter FC-E8
(I illustrate Angle (spec.: 183 degrees) and View under horizontal
plane).
(for reference:
Angle
of FC-E8)
Measurement of E4500, and illustrate result.
Use paper, like fig. (for easy measurement).
Paste tape etc. and 2 point mark with 50 cm distance.
Take a 1st. photo near wall. Black circle is near horizontal plane of
lens.
(Trim fisheye photo, actual pixels)
Take a 2nd. photo far wall. Black circle is under horizontal plane of
lens.
(If Angle of lens is over 180 degree.)
(Trim fisheye photo, actual pixels)
Moving Black circle by to move camera 50 cm is:
6.8+1.3-2.7=5.4, about 5.5 cm, (11cm /100cm) about 6.3 degrees.
==> Angle of E4500 + FC-E8: about192.6 degrees.
(It has many error :-p)
Measurement of E885, and result.
Take a 1st. photo near wall.
(Trim fisheye photo, actual pixels)
Take a 2nd. photo far wall.
(Trim fisheye photo, actual pixels)
Moving Black circle by to move camera 50 cm is:
4.2+3.5-0.9=6.8, about 6.5 cm, (13cm /100cm) about 7.4 degrees.
==> Angle of E885 + FC-E8: about197.8 degrees.
(It has many error :-p)