View allAll Photos Tagged angular
I found this ancient roll of film (circa 2008-2010) and had it developed last week. Surprisingly, some stuff came out.
This photo was from a 2008 or 2009 trip to China.
Fujifilm 120 ISO 160
Watch my video about unearthing this old film and scanning: youtu.be/E8naWS0cDtE
Shot with a Minox 35 GT-E
Minox Color-Minotar 35mm f/2.8 lens
Ilford HP5+ 400 film
Shot at EI 400
Developed in the Ego Lab using Rodinal (1:25, 2:55 min at 84F, agitated first and each minute)
Scanned on a Super Coolscan 9000ED
As a side note, why can I never take pictures outside without the damn sky turning out pure white? Apparently either my camera sucks or I do. Or both.
(Unnat: elevated, Amsa : division, degree of arc)
Unnatamsa is an instrument for measuring altitude - the angular height of an object in the sky.
The large graduated brass circle hung from the supporting beam is the measuring instrument of the Unnatamsa. The brass circle is pivoted to rotate freely around a vertical axis. The has two cross beams in the vertical and horizontal directions. A sighting tube is pivoted at the centre of the circle. It can be moved in the vertical direction to align it towards any celestial object. This pivoting of the Unnatama is analogous to the Alt-Az mounting of a modern telescope.
The vertical movement of the sighting tube and the horizontal rotation of the brass ring can be adjusted to sight the celestial object and read the altitude against the graduations on the rim of the circle.
The rim of the brass circle has graduations marked in such a way that smallest division is one tenth of a degree. Larger divisions of 1 degree and 6 degrees are also marked on the circle.